Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN) - Resource and Admission Control: H.248 Profile for controlling Border Gateway Functions (BGF) in the Resource and Admission Control Subsystem (RACS) - Protocol specification

1 Interpretation of package support was further clarified by ITU-T SG-16 after Ia v2 was approved. This means text in Ia v2 needs to be updated correspondingly. Affects clause 5.14. 2.Interaction between filters after latching occurred was further clarified by ITU-T SG-16 after Ia v2 was approved. This means text in Ia v2 needs to be updated correspondingly. Affects clause 5.18.1.1.1. 3.Semantics for “ignore” was further clarified by ITU-T SG-16 after Ia v2 was approved. This means text in Ia v2 needs to be updated correspondingly. Affects clause 5.15 and 5.16. 4 Further identified corrections needed.

Zlite telekomunikacijske in internetne storitve ter protokoli za napredno omreženje (TISPAN) - Krmiljenje vira in pristopa: profil H.248 za krmiljenje funkcij mejnega prehoda (BGF) v podsistemu za krmiljenje vira in pristopa (RACS) - Specifikacija protokola

General Information

Status
Published
Publication Date
08-Oct-2009
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
02-Oct-2009
Due Date
07-Dec-2009
Completion Date
09-Oct-2009

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ETSI ES 283 018 V2.7.1 (2009-09) - Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Resource and Admission Control: H.248 Profile for controlling Border Gateway Functions (BGF) in the Resource and Admission Control Subsystem (RACS); Protocol specification
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ETSI ES 283 018 V2.7.1 (2009-07) - Telecommunications and Internet converged Services and Protocols for Advanced Networking (TISPAN); Resource and Admission Control: H.248 Profile for controlling Border Gateway Functions (BGF) in the Resource and Admission Control Subsystem (RACS); Protocol specification
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169 pages
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SIST ES 283 018 V2.7.1:2009
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ETSI ES 283 018 V2.7.1 (2009-09)
ETSI Standard
Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN);
Resource and Admission Control:
H.248 Profile for controlling
Border Gateway Functions (BGF) in the Resource and
Admission Control Subsystem (RACS);
Protocol specification
---------------------- Page: 1 ----------------------
2 ETSI ES 283 018 V2.7.1 (2009-09)
Reference
RES/TISPAN-03176-NGN-R2
Keywords
H.248, interface
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
Individual copies of the present document can be downloaded from:
http://www.etsi.org

The present document may be made available in more than one electronic version or in print. In any case of existing or

perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF).

In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive

within ETSI Secretariat.

Users of the present document should be aware that the document may be subject to revision or change of status.

Information on the current status of this and other ETSI documents is available at

http://portal.etsi.org/tb/status/status.asp

If you find errors in the present document, please send your comment to one of the following services:

http://portal.etsi.org/chaircor/ETSI_support.asp
Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2009.
All rights reserved.
TM TM TM TM

DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered

for the benefit of its Members.

3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.

LTE™ is a Trade Mark of ETSI currently being registered
for the benefit of its Members and of the 3GPP Organizational Partners.

GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.

ETSI
---------------------- Page: 2 ----------------------
3 ETSI ES 283 018 V2.7.1 (2009-09)
Contents

Intellectual Property Rights ................................................................................................................................ 8

Foreword ............................................................................................................................................................. 8

1 Scope ........................................................................................................................................................ 9

2 References ................................................................................................................................................ 9

2.1 Normative references ......................................................................................................................................... 9

2.2 Informative references ...................................................................................................................................... 10

3 Definitions and abbreviations ................................................................................................................. 11

3.1 Definitions ........................................................................................................................................................ 11

3.2 Abbreviations ................................................................................................................................................... 13

4 Applicability ........................................................................................................................................... 14

4.1 Architecture ...................................................................................................................................................... 14

4.2 Border Gateway Guidelines ............................................................................................................................. 14

5 Profile description .................................................................................................................................. 15

5.1 Profile identification ......................................................................................................................................... 15

5.2 Summary .......................................................................................................................................................... 15

5.3 Gateway Control Protocol Version .................................................................................................................. 15

5.4 Connection model............................................................................................................................................. 16

5.5 Context attributes ............................................................................................................................................. 16

5.6 Terminations ..................................................................................................................................................... 16

5.6.1 Termination names ..................................................................................................................................... 16

5.6.1.1 IP Termination ...................................................................................................................................... 16

5.6.1.1.1 Overview and prose specification .................................................................................................... 16

5.6.1.1.2 Syntactical Specification ................................................................................................................. 19

5.6.2 Multiplexed terminations ............................................................................................................................ 19

5.7 Descriptors ....................................................................................................................................................... 19

5.7.1 TerminationState descriptor ........................................................................................................................ 19

5.7.2 Stream descriptor ........................................................................................................................................ 20

5.7.2.1 LocalControl descriptor ........................................................................................................................ 20

5.7.3 Events descriptor ........................................................................................................................................ 20

5.7.4 EventBuffer descriptor ................................................................................................................................ 21

5.7.5 Signals descriptor ........................................................................................................................................ 21

5.7.6 DigitMap descriptor .................................................................................................................................... 22

5.7.7 Statistics descriptor ..................................................................................................................................... 22

5.7.8 ObservedEvents descriptor ......................................................................................................................... 22

5.7.9 Topology descriptor .................................................................................................................................... 22

5.7.10 Error descriptor ........................................................................................................................................... 23

5.8 Command API .................................................................................................................................................. 23

5.8.1 Add ............................................................................................................................................................. 24

5.8.2 Modify ........................................................................................................................................................ 24

5.8.3 Subtract ....................................................................................................................................................... 24

5.8.4 Move ........................................................................................................................................................... 25

5.8.5 AuditValue .................................................................................................................................................. 25

5.8.6 AuditCapabilities ........................................................................................................................................ 25

5.8.7 Notify .......................................................................................................................................................... 25

5.8.8 ServiceChange ............................................................................................................................................ 25

5.8.9 Manipulating and auditing context attributes .............................................................................................. 26

5.9 Generic command syntax and encoding ........................................................................................................... 26

5.10 Transactions ..................................................................................................................................................... 27

5.11 Messages .......................................................................................................................................................... 27

5.12 Transport .......................................................................................................................................................... 27

5.13 Security ............................................................................................................................................................ 28

5.14 Packages ........................................................................................................................................................... 28

5.14.1 Overview .................................................................................................................................................... 28

ETSI
---------------------- Page: 3 ----------------------
4 ETSI ES 283 018 V2.7.1 (2009-09)

5.14.2 Package usage information ......................................................................................................................... 29

5.14.2.1 Generic (g) ............................................................................................................................................ 29

5.14.2.2 Base root (root) ..................................................................................................................................... 30

5.14.2.3 Network (nt) .......................................................................................................................................... 31

5.14.2.4 Differentiated Services (ds) ................................................................................................................... 32

5.14.2.5 Gate Management (gm) ......................................................................................................................... 33

5.14.2.6 Traffic management (tman) ................................................................................................................... 34

5.14.2.7 IP NAPT Traversal (ipnapt) .................................................................................................................. 34

5.14.2.8 MPLS (mpls) ......................................................................................................................................... 35

5.14.2.9 VLAN (vlan) ......................................................................................................................................... 35

5.14.2.10 MGC Information (mgcinfo) ................................................................................................................. 36

5.14.2.11 Inactivity (it) ......................................................................................................................................... 36

5.14.2.12 Segmentation (seg) ................................................................................................................................ 37

5.14.2.13 RTP (rtp) ............................................................................................................................................... 38

5.14.2.14 Application Data Inactivity Detection (adid) ........................................................................................ 38

5.14.2.15 IP Domain Connection (ipdc) ............................................................................................................... 39

5.14.2.16 Media Gateway Overload Control (ocp) ............................................................................................... 39

5.14.2.17 Hanging Termination Detection (hangterm) ......................................................................................... 40

5.14.2.18 Statistic Conditional Reporting (scr) ..................................................................................................... 40

5.15 Mandatory support of SDP and annex C information elements ....................................................................... 41

5.16 Optional support of SDP and annex C information elements ........................................................................... 42

5.17 Overview of Procedures ................................................................................................................................... 43

5.17.1 Overview of Session Dependent Procedures .............................................................................................. 43

5.17.1.1 Gate control ........................................................................................................................................... 44

5.17.1.2 Allocation and translation of IP addresses, ports and versions (NAPT-PT) ......................................... 46

5.17.1.3 Support of Hosted NAT Traversal ........................................................................................................ 47

5.17.1.4 QoS marking ......................................................................................................................................... 47

5.17.1.4.1 Copying DSCP/ToS values from the ingress to egress .................................................................... 47

5.17.1.4.2 Auditing the "Per-Hop Behaviour" .................................................................................................. 47

5.17.1.5 Bandwidth control - Reservation, Allocation and Policing ................................................................... 47

5.17.1.5.1 Admission Control........................................................................................................................... 48

5.17.1.5.2 Traffic Descriptor ............................................................................................................................ 48

5.17.1.5.3 Bandwidth reservation and allocation ............................................................................................. 48

5.17.1.5.4 Bandwidth policing ......................................................................................................................... 49

5.17.1.5.5 Non-specification of tman properties .............................................................................................. 49

5.17.1.6 Usage metering and statistics reporting................................................................................................. 49

5.17.1.6.1 Statistics for Media/Transport-agnostic IP packets ......................................................................... 49

5.17.1.6.2 Traffic Volume related Statistics ..................................................................................................... 49

5.17.1.7 RTCP Handling ..................................................................................................................................... 50

5.17.1.7.1 RTCP Transport Address Allocation ............................................................................................... 50

5.17.1.7.2 RTP/RTCP to-H.248 Stream Mapping ............................................................................................ 51

5.17.1.8 RTCP Forwarding ................................................................................................................................. 51

5.17.1.8.1 Conditions for RTCP packet policing .............................................................................................. 51

5.17.1.8.2 Forwarding of regular RTCP traffic ................................................................................................ 51

5.17.1.8.3 Handling of RTCP XR/HR traffic ................................................................................................... 51

5.17.1.9 Media Inactivity .................................................................................................................................... 51

5.17.1.10 IP Realm/Domain Indication ................................................................................................................. 52

5.17.1.10.1 Codepoint and format/encoding ...................................................................................................... 52

5.17.1.10.2 Unsuccessful indication ................................................................................................................... 52

5.17.1.10.3 Fix assignment per termination lifetime .......................................................................................... 52

5.17.1.10.4 Number of IP Realms/Domains ....................................................................................................... 52

5.17.1.11 Two-Stage BGF Resource Reservation ................................................................................................. 53

5.17.1.12 Hanging Termination Detection ............................................................................................................ 53

5.17.1.13 Real Time Statistics Reporting .............................................................................................................. 53

5.17.1.14 Transcoding ........................................................................................................................................... 54

5.17.1.14.1 Media types and formats (Codecs) .................................................................................................. 54

5.17.1.14.2 Decision for transcoding .................................................................................................................. 54

5.17.1.15 Void....................................................................................................................................................... 54

5.17.1.16 VPN identification ................................................................................................................................ 54

5.17.1.16.1 VLAN marking ................................................................................................................................ 54

5.17.2 Overview of Session Independent Procedures ............................................................................................ 55

5.17.2.1 Introduction - Relation to TR 183 025 [i.2] .......................................................................................... 55

ETSI
---------------------- Page: 4 ----------------------
5 ETSI ES 283 018 V2.7.1 (2009-09)

5.17.2.2 Session-independent procedures ........................................................................................................... 55

5.17.2.3 MG Overload Control: Rate limitation of H.248 Messages from MGC-to-MG ................................... 55

5.18 Session Dependent Procedures (Command Level Details) .............................................................................. 55

5.18.1 Add Termination ......................................................................................................................................... 56

5.18.1.1 Add Termination - Remote Addr and Port Known, Select Local Addr and Port .................................. 57

5.18.1.1.1 Conditions for Address Policing: SAF, SPF, SAM, SPR, SPRR .................................................... 59

5.18.1.1.2 Assigning IP Domain/Realm to Termination .................................................................................. 60

5.18.1.1.3 Add Termination - Remote Addr and Port Known, Select Local Addr and Port - Examples.......... 61

5.18.1.2 Add Termination - Select Local Addr and Port..................................................................................... 62

5.18.1.2.1 Add Termination - Select Local Addr and Port - Examples ............................................................ 65

5.18.1.3 Add Termination - Remote Addr Known, Select Local Addr ............................................................... 66

5.18.1.3.1 Add Termination - Remote Addr Known, Select Local Addr - Examples ...................................... 68

5.18.1.4 Add Termination - Select Local Addr ................................................................................................... 69

5.18.1.4.1 Add Termination - Select Local Addr - Examples .......................................................................... 70

5.18.1.5 Add Termination - Remote Addr Known and Port Possibly Known, no Local Addr and Port ............. 71

5.18.1.5.1 Add Termination - Remote Addr Known and Port Possibly Known, no Local Addr and Port -

Examples ......................................................................................................................................... 72

5.18.2 Session Establishment Update .................................................................................................................... 72

5.18.2.1 Session Establishment Update - Remote Addr and Port Known ........................................................... 73

5.18.2.1.1 Session Establishment Update - Remote Addr and Port Known - Examples .................................. 75

5.18.2.2 Session Establishment Update - Remote Addr Known ......................................................................... 78

5.18.2.2.1 Session Establishment Update - Remote Addr Known - Examples ................................................ 79

5.18.2.3 Session Establishment Update - Through Connect ............................................................................... 80

5.18.2.3.1 Session Establishment Update - Through Connect - Examples ....................................................... 82

5.18.2.4 Session Establishment Update - Select Local Port ................................................................................ 83

5.18.2.4.1 Session Establishment Update - Select Local Port - Examples ....................................................... 86

5.18.2.5 Session Establishment Update - Bandwidth Change ............................................................................. 87

5.18.2.5.1 Session Establishment Update - Bandwidth Change - Examples .................................................... 89

5.18.2.6 Session Establishment Update - Delete Stream..................................................................................... 89

5.18.2.6.1 Session Establishment Update - Delete Stream - Examples ............................................................ 92

5.18.3 Mid-Session Update .................................................................................................................................... 92

5.18.3.1 Mid-Session Update - Bandwidth Change ............................................................................................ 92

5.18.3.1.1 Mid-Session Update - Bandwidth Change - Examples.................................................................... 95

5.18.3.2 Mid-Session Update - Media Change ................................................................................................... 96

5.18.3.2.1 Mid-Session Update - Media Change - Examples ........................................................................... 98

5.18.3.3 Mid-Session Update - Remote Addr/Port Change ................................................................................ 99

5.18.3.3.1 Mid-Session Update - Remote Addr/Port Change - Examples ...................................................... 102

5.18.3.4 Mid-Session Update - Add Stream, Remote Addr and Port Known ................................................... 103

5.18.3.4.1 Mid-Session Update - Add Stream, Remote Addr and Port Known - Examples........................... 106

5.18.3.5 Mid-Session Update - Add Stream ...................................................................................................... 107

5.18.3.5.1 Mid-Session Update - Add Stream - Examples ............................................................................. 110

5.18.3.6 Mid-Session Update - Delete Stream .................................................................................................. 111

5.18.3.6.1 Mid-Session Update - Delete Stream - Examples ......................................................................... 112

5.18.3.7 Mid-Session Update - Add Stream, Remote Addr Known and Port Possibly Known, no Local

Addr and Port ...................................................................................................................................... 115

5.18.3.7.1 Mid-Session Update - Add Add Stream, Remote Addr Known and Port Possibly Known, no

Local Addr and Port - Examples ................................................................................................... 116

5.18.4 Auditing .................................................................................................................................................... 117

5.18.4.1 Mid-Session Statistics Audit ............................................................................................................... 117

5.18.4.1.1 Mid-Session Statistics Audit - Example ........................................................................................ 118

5.18.4.2 Mid-Session MGC Info Audit ............................................................................................................. 119

5.18.4.2.1 Mid-Session MGC Info Audit - Example ...................................................................................... 120

5.18.5 Notification of MG Events ....................................................................................................................... 120

5.18.5.1 Notification of IP Media Stop ............................................................................................................. 120

5.18.5.2 Notification of Hanging Termination .................................................................................................. 121

5.18.5.3 Notification of Statistic Conditional Reporting ................................................................................... 122

5.18.6 Delete Session/Termination ...................................................................................................................... 123

5.18.6.1 Delete Session/Termination ................................................................................................................ 123

5.18.6.1.1 Delete Session/Termination - Examples ........................................................................................ 124

5.18.6.2 Delete Session/Termination - Wildcarded Reply ................................................................................ 127

5.18.6.2.1 Delete Session - Wildcarded Reply - Examples ............................................................................ 127

5.19 Non-Session Related Use Cases ..................................................................................................................... 127

ETSI
---------------------- Page: 5 ----------------------
6 ETSI ES 283 018 V2.7.1 (2009-09)

5.19.1 Enable MG ................................................................................................................................................ 128

5.19.1.1 Enable MG (at MGC).......................................................................................................................... 128

5.19.1.2 Enable MG (at MG) ..........................................................................................

...

Final draft ETSI ES 283 018 V2.7.1 (2009-07)
ETSI Standard
Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN);
Resource and Admission Control: H.248 Profile for controlling
Border Gateway Functions (BGF) in the Resource and
Admission Control Subsystem (RACS);
Protocol specification
---------------------- Page: 1 ----------------------
2 Final draft ETSI ES 283 018 V2.7.1 (2009-07)
Reference
RES/TISPAN-03176-NGN-R2
Keywords
H.248, interface
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE
Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
Individual copies of the present document can be downloaded from:
http://www.etsi.org

The present document may be made available in more than one electronic version or in print. In any case of existing or

perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF).

In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive

within ETSI Secretariat.

Users of the present document should be aware that the document may be subject to revision or change of status.

Information on the current status of this and other ETSI documents is available at

http://portal.etsi.org/tb/status/status.asp

If you find errors in the present document, please send your comment to one of the following services:

http://portal.etsi.org/chaircor/ETSI_support.asp
Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2009.
All rights reserved.
TM TM TM TM

DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered

for the benefit of its Members.

3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.

LTE™ is a Trade Mark of ETSI currently being registered
for the benefit of its Members and of the 3GPP Organizational Partners.

GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.

ETSI
---------------------- Page: 2 ----------------------
3 Final draft ETSI ES 283 018 V2.7.1 (2009-07)
Contents

Intellectual Property Rights ................................................................................................................................ 8

Foreword ............................................................................................................................................................. 8

1 Scope ........................................................................................................................................................ 9

2 References ................................................................................................................................................ 9

2.1 Normative references ......................................................................................................................................... 9

2.2 Informative references ...................................................................................................................................... 10

3 Definitions and abbreviations ................................................................................................................. 11

3.1 Definitions ........................................................................................................................................................ 11

3.2 Abbreviations ................................................................................................................................................... 13

4 Applicability ........................................................................................................................................... 14

4.1 Architecture ...................................................................................................................................................... 14

4.2 Border Gateway Guidelines ............................................................................................................................. 14

5 Profile description .................................................................................................................................. 15

5.1 Profile identification ......................................................................................................................................... 15

5.2 Summary .......................................................................................................................................................... 15

5.3 Gateway Control Protocol Version .................................................................................................................. 15

5.4 Connection model............................................................................................................................................. 16

5.5 Context attributes ............................................................................................................................................. 16

5.6 Terminations ..................................................................................................................................................... 16

5.6.1 Termination names ..................................................................................................................................... 16

5.6.1.1 IP Termination ...................................................................................................................................... 16

5.6.1.1.1 Overview and prose specification .................................................................................................... 16

5.6.1.1.2 Syntactical Specification ................................................................................................................. 19

5.6.2 Multiplexed terminations ............................................................................................................................ 19

5.7 Descriptors ....................................................................................................................................................... 19

5.7.1 TerminationState descriptor ........................................................................................................................ 19

5.7.2 Stream descriptor ........................................................................................................................................ 20

5.7.2.1 LocalControl descriptor ........................................................................................................................ 20

5.7.3 Events descriptor ........................................................................................................................................ 20

5.7.4 EventBuffer descriptor ................................................................................................................................ 21

5.7.5 Signals descriptor ........................................................................................................................................ 21

5.7.6 DigitMap descriptor .................................................................................................................................... 22

5.7.7 Statistics descriptor ..................................................................................................................................... 22

5.7.8 ObservedEvents descriptor ......................................................................................................................... 22

5.7.9 Topology descriptor .................................................................................................................................... 22

5.7.10 Error descriptor ........................................................................................................................................... 23

5.8 Command API .................................................................................................................................................. 23

5.8.1 Add ............................................................................................................................................................. 24

5.8.2 Modify ........................................................................................................................................................ 24

5.8.3 Subtract ....................................................................................................................................................... 24

5.8.4 Move ........................................................................................................................................................... 25

5.8.5 AuditValue .................................................................................................................................................. 25

5.8.6 AuditCapabilities ........................................................................................................................................ 25

5.8.7 Notify .......................................................................................................................................................... 25

5.8.8 ServiceChange ............................................................................................................................................ 25

5.8.9 Manipulating and auditing context attributes .............................................................................................. 26

5.9 Generic command syntax and encoding ........................................................................................................... 26

5.10 Transactions ..................................................................................................................................................... 27

5.11 Messages .......................................................................................................................................................... 27

5.12 Transport .......................................................................................................................................................... 27

5.13 Security ............................................................................................................................................................ 28

5.14 Packages ........................................................................................................................................................... 28

5.14.1 Overview .................................................................................................................................................... 28

ETSI
---------------------- Page: 3 ----------------------
4 Final draft ETSI ES 283 018 V2.7.1 (2009-07)

5.14.2 Package usage information ......................................................................................................................... 29

5.14.2.1 Generic (g) ............................................................................................................................................ 29

5.14.2.2 Base root (root) ..................................................................................................................................... 30

5.14.2.3 Network (nt) .......................................................................................................................................... 31

5.14.2.4 Differentiated Services (ds) ................................................................................................................... 32

5.14.2.5 Gate Management (gm) ......................................................................................................................... 33

5.14.2.6 Traffic management (tman) ................................................................................................................... 34

5.14.2.7 IP NAPT Traversal (ipnapt) .................................................................................................................. 34

5.14.2.8 MPLS (mpls) ......................................................................................................................................... 35

5.14.2.9 VLAN (vlan) ......................................................................................................................................... 35

5.14.2.10 MGC Information (mgcinfo) ................................................................................................................. 36

5.14.2.11 Inactivity (it) ......................................................................................................................................... 36

5.14.2.12 Segmentation (seg) ................................................................................................................................ 37

5.14.2.13 RTP (rtp) ............................................................................................................................................... 38

5.14.2.14 Application Data Inactivity Detection (adid) ........................................................................................ 38

5.14.2.15 IP Domain Connection (ipdc) ............................................................................................................... 39

5.14.2.16 Media Gateway Overload Control (ocp) ............................................................................................... 39

5.14.2.17 Hanging Termination Detection (hangterm) ......................................................................................... 40

5.14.2.18 Statistic Conditional Reporting (scr) ..................................................................................................... 40

5.15 Mandatory support of SDP and annex C information elements ....................................................................... 41

5.16 Optional support of SDP and annex C information elements ........................................................................... 42

5.17 Overview of Procedures ................................................................................................................................... 43

5.17.1 Overview of Session Dependent Procedures .............................................................................................. 43

5.17.1.1 Gate control ........................................................................................................................................... 44

5.17.1.2 Allocation and translation of IP addresses, ports and versions (NAPT-PT) ......................................... 46

5.17.1.3 Support of Hosted NAT Traversal ........................................................................................................ 47

5.17.1.4 QoS marking ......................................................................................................................................... 47

5.17.1.4.1 Copying DSCP/ToS values from the ingress to egress .................................................................... 47

5.17.1.4.2 Auditing the "Per-Hop Behaviour" .................................................................................................. 47

5.17.1.5 Bandwidth control - Reservation, Allocation and Policing ................................................................... 47

5.17.1.5.1 Admission Control........................................................................................................................... 48

5.17.1.5.2 Traffic Descriptor ............................................................................................................................ 48

5.17.1.5.3 Bandwidth reservation and allocation ............................................................................................. 48

5.17.1.5.4 Bandwidth policing ......................................................................................................................... 49

5.17.1.5.5 Non-specification of tman properties .............................................................................................. 49

5.17.1.6 Usage metering and statistics reporting................................................................................................. 49

5.17.1.6.1 Statistics for Media/Transport-agnostic IP packets ......................................................................... 49

5.17.1.6.2 Traffic Volume related Statistics ..................................................................................................... 49

5.17.1.7 RTCP Handling ..................................................................................................................................... 50

5.17.1.7.1 RTCP Transport Address Allocation ............................................................................................... 50

5.17.1.7.2 RTP/RTCP to-H.248 Stream Mapping ............................................................................................ 51

5.17.1.8 RTCP Forwarding ................................................................................................................................. 51

5.17.1.8.1 Conditions for RTCP packet policing .............................................................................................. 51

5.17.1.8.2 Forwarding of regular RTCP traffic ................................................................................................ 51

5.17.1.8.3 Handling of RTCP XR/HR traffic ................................................................................................... 51

5.17.1.9 Media Inactivity .................................................................................................................................... 51

5.17.1.10 IP Realm/Domain Indication ................................................................................................................. 52

5.17.1.10.1 Codepoint and format/encoding ...................................................................................................... 52

5.17.1.10.2 Unsuccessful indication ................................................................................................................... 52

5.17.1.10.3 Fix assignment per termination lifetime .......................................................................................... 52

5.17.1.10.4 Number of IP Realms/Domains ....................................................................................................... 52

5.17.1.11 Two-Stage BGF Resource Reservation ................................................................................................. 53

5.17.1.12 Hanging Termination Detection ............................................................................................................ 53

5.17.1.13 Real Time Statistics Reporting .............................................................................................................. 53

5.17.1.14 Transcoding ........................................................................................................................................... 54

5.17.1.14.1 Media types and formats (Codecs) .................................................................................................. 54

5.17.1.14.2 Decision for transcoding .................................................................................................................. 54

5.17.1.15 Void....................................................................................................................................................... 54

5.17.1.16 VPN identification ................................................................................................................................ 54

5.17.1.16.1 VLAN marking ................................................................................................................................ 54

5.17.2 Overview of Session Independent Procedures ............................................................................................ 55

5.17.2.1 Introduction - Relation to TR 183 025 [i.2] .......................................................................................... 55

ETSI
---------------------- Page: 4 ----------------------
5 Final draft ETSI ES 283 018 V2.7.1 (2009-07)

5.17.2.2 Session-independent procedures ........................................................................................................... 55

5.17.2.3 MG Overload Control: Rate limitation of H.248 Messages from MGC-to-MG ................................... 55

5.18 Session Dependent Procedures (Command Level Details) .............................................................................. 55

5.18.1 Add Termination ......................................................................................................................................... 56

5.18.1.1 Add Termination - Remote Addr and Port Known, Select Local Addr and Port .................................. 57

5.18.1.1.1 Conditions for Address Policing: SAF, SPF, SAM, SPR, SPRR .................................................... 59

5.18.1.1.2 Assigning IP Domain/Realm to Termination .................................................................................. 60

5.18.1.1.3 Add Termination - Remote Addr and Port Known, Select Local Addr and Port - Examples.......... 61

5.18.1.2 Add Termination - Select Local Addr and Port..................................................................................... 62

5.18.1.2.1 Add Termination - Select Local Addr and Port - Examples ............................................................ 65

5.18.1.3 Add Termination - Remote Addr Known, Select Local Addr ............................................................... 66

5.18.1.3.1 Add Termination - Remote Addr Known, Select Local Addr - Examples ...................................... 68

5.18.1.4 Add Termination - Select Local Addr ................................................................................................... 69

5.18.1.4.1 Add Termination - Select Local Addr - Examples .......................................................................... 70

5.18.1.5 Add Termination - Remote Addr Known and Port Possibly Known, no Local Addr and Port ............. 71

5.18.1.5.1 Add Termination - Remote Addr Known and Port Possibly Known, no Local Addr and Port -

Examples ......................................................................................................................................... 72

5.18.2 Session Establishment Update .................................................................................................................... 72

5.18.2.1 Session Establishment Update - Remote Addr and Port Known ........................................................... 73

5.18.2.1.1 Session Establishment Update - Remote Addr and Port Known - Examples .................................. 75

5.18.2.2 Session Establishment Update - Remote Addr Known ......................................................................... 78

5.18.2.2.1 Session Establishment Update - Remote Addr Known - Examples ................................................ 79

5.18.2.3 Session Establishment Update - Through Connect ............................................................................... 80

5.18.2.3.1 Session Establishment Update - Through Connect - Examples ....................................................... 82

5.18.2.4 Session Establishment Update - Select Local Port ................................................................................ 83

5.18.2.4.1 Session Establishment Update - Select Local Port - Examples ....................................................... 86

5.18.2.5 Session Establishment Update - Bandwidth Change ............................................................................. 87

5.18.2.5.1 Session Establishment Update - Bandwidth Change - Examples .................................................... 89

5.18.2.6 Session Establishment Update - Delete Stream..................................................................................... 89

5.18.2.6.1 Session Establishment Update - Delete Stream - Examples ............................................................ 92

5.18.3 Mid-Session Update .................................................................................................................................... 92

5.18.3.1 Mid-Session Update - Bandwidth Change ............................................................................................ 92

5.18.3.1.1 Mid-Session Update - Bandwidth Change - Examples.................................................................... 95

5.18.3.2 Mid-Session Update - Media Change ................................................................................................... 96

5.18.3.2.1 Mid-Session Update - Media Change - Examples ........................................................................... 98

5.18.3.3 Mid-Session Update - Remote Addr/Port Change ................................................................................ 99

5.18.3.3.1 Mid-Session Update - Remote Addr/Port Change - Examples ...................................................... 102

5.18.3.4 Mid-Session Update - Add Stream, Remote Addr and Port Known ................................................... 103

5.18.3.4.1 Mid-Session Update - Add Stream, Remote Addr and Port Known - Examples........................... 106

5.18.3.5 Mid-Session Update - Add Stream ...................................................................................................... 107

5.18.3.5.1 Mid-Session Update - Add Stream - Examples ............................................................................. 110

5.18.3.6 Mid-Session Update - Delete Stream .................................................................................................. 111

5.18.3.6.1 Mid-Session Update - Delete Stream - Examples ......................................................................... 112

5.18.3.7 Mid-Session Update - Add Stream, Remote Addr Known and Port Possibly Known, no Local

Addr and Port ...................................................................................................................................... 115

5.18.3.7.1 Mid-Session Update - Add Add Stream, Remote Addr Known and Port Possibly Known, no

Local Addr and Port - Examples ................................................................................................... 116

5.18.4 Auditing .................................................................................................................................................... 117

5.18.4.1 Mid-Session Statistics Audit ............................................................................................................... 117

5.18.4.1.1 Mid-Session Statistics Audit - Example ........................................................................................ 118

5.18.4.2 Mid-Session MGC Info Audit ............................................................................................................. 119

5.18.4.2.1 Mid-Session MGC Info Audit - Example ...................................................................................... 120

5.18.5 Notification of MG Events ....................................................................................................................... 120

5.18.5.1 Notification of IP Media Stop ............................................................................................................. 120

5.18.5.2 Notification of Hanging Termination .................................................................................................. 121

5.18.5.3 Notification of Statistic Conditional Reporting ................................................................................... 122

5.18.6 Delete Session/Termination ...................................................................................................................... 123

5.18.6.1 Delete Session/Termination ................................................................................................................ 123

5.18.6.1.1 Delete Session/Termination - Examples ........................................................................................ 124

5.18.6.2 Delete Session/Termination - Wildcarded Reply ................................................................................ 127

5.18.6.2.1 Delete Session - Wildcarded Reply - Examples ............................................................................ 127

5.19 Non-Session Related Use Cases ..................................................................................................................... 127

ETSI
---------------------- Page: 5 ----------------------
6 Final draft ETSI ES 283 018 V2.7.1 (2009-07)

5.19.1 Enable MG ................................................................................................................................................ 128

5.19.1.1 Enable MG (at MGC).......................................................................................................................... 128

5.19.1.2 Enable MG (at MG) .......................
...

SLOVENSKI STANDARD
SIST ES 283 018 V2.7.1:2009
01-november-2009

Zlite telekomunikacijske in internetne storitve ter protokoli za napredno omreženje

(TISPAN) - Krmiljenje vira in pristopa: profil H.248 za krmiljenje funkcij mejnega

prehoda (BGF) v podsistemu za krmiljenje vira in pristopa (RACS) - Specifikacija
protokola
Telecommunications and Internet converged Services and Protocols for Advanced

Networking (TISPAN) - Resource and Admission Control: H.248 Profile for controlling

Border Gateway Functions (BGF) in the Resource and Admission Control Subsystem
(RACS) - Protocol specification
Ta slovenski standard je istoveten z: ES 283 018 Version 2.7.1
ICS:
33.040.01 Telekomunikacijski sistemi Telecommunication systems
na splošno in general
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST ES 283 018 V2.7.1:2009 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST ES 283 018 V2.7.1:2009
---------------------- Page: 2 ----------------------
SIST ES 283 018 V2.7.1:2009
ETSI ES 283 018 V2.7.1 (2009-09)
ETSI Standard
Telecommunications and Internet converged Services and
Protocols for Advanced Networking (TISPAN);
Resource and Admission Control:
H.248 Profile for controlling
Border Gateway Functions (BGF) in the Resource and
Admission Control Subsystem (RACS);
Protocol specification
---------------------- Page: 3 ----------------------
SIST ES 283 018 V2.7.1:2009
2 ETSI ES 283 018 V2.7.1 (2009-09)
Reference
RES/TISPAN-03176-NGN-R2
Keywords
H.248, interface
ETSI
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Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
Siret N° 348 623 562 00017 - NAF 742 C
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° 7803/88
Important notice
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Users of the present document should be aware that the document may be subject to revision or change of status.

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If you find errors in the present document, please send your comment to one of the following services:

http://portal.etsi.org/chaircor/ETSI_support.asp
Copyright Notification
No part may be reproduced except as authorized by written permission.
The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2009.
All rights reserved.
TM TM TM TM

DECT , PLUGTESTS , UMTS , TIPHON , the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered

for the benefit of its Members.

3GPP is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners.

LTE™ is a Trade Mark of ETSI currently being registered
for the benefit of its Members and of the 3GPP Organizational Partners.

GSM® and the GSM logo are Trade Marks registered and owned by the GSM Association.

ETSI
---------------------- Page: 4 ----------------------
SIST ES 283 018 V2.7.1:2009
3 ETSI ES 283 018 V2.7.1 (2009-09)
Contents

Intellectual Property Rights ................................................................................................................................ 8

Foreword ............................................................................................................................................................. 8

1 Scope ........................................................................................................................................................ 9

2 References ................................................................................................................................................ 9

2.1 Normative references ......................................................................................................................................... 9

2.2 Informative references ...................................................................................................................................... 10

3 Definitions and abbreviations ................................................................................................................. 11

3.1 Definitions ........................................................................................................................................................ 11

3.2 Abbreviations ................................................................................................................................................... 13

4 Applicability ........................................................................................................................................... 14

4.1 Architecture ...................................................................................................................................................... 14

4.2 Border Gateway Guidelines ............................................................................................................................. 14

5 Profile description .................................................................................................................................. 15

5.1 Profile identification ......................................................................................................................................... 15

5.2 Summary .......................................................................................................................................................... 15

5.3 Gateway Control Protocol Version .................................................................................................................. 15

5.4 Connection model............................................................................................................................................. 16

5.5 Context attributes ............................................................................................................................................. 16

5.6 Terminations ..................................................................................................................................................... 16

5.6.1 Termination names ..................................................................................................................................... 16

5.6.1.1 IP Termination ...................................................................................................................................... 16

5.6.1.1.1 Overview and prose specification .................................................................................................... 16

5.6.1.1.2 Syntactical Specification ................................................................................................................. 19

5.6.2 Multiplexed terminations ............................................................................................................................ 19

5.7 Descriptors ....................................................................................................................................................... 19

5.7.1 TerminationState descriptor ........................................................................................................................ 19

5.7.2 Stream descriptor ........................................................................................................................................ 20

5.7.2.1 LocalControl descriptor ........................................................................................................................ 20

5.7.3 Events descriptor ........................................................................................................................................ 20

5.7.4 EventBuffer descriptor ................................................................................................................................ 21

5.7.5 Signals descriptor ........................................................................................................................................ 21

5.7.6 DigitMap descriptor .................................................................................................................................... 22

5.7.7 Statistics descriptor ..................................................................................................................................... 22

5.7.8 ObservedEvents descriptor ......................................................................................................................... 22

5.7.9 Topology descriptor .................................................................................................................................... 22

5.7.10 Error descriptor ........................................................................................................................................... 23

5.8 Command API .................................................................................................................................................. 23

5.8.1 Add ............................................................................................................................................................. 24

5.8.2 Modify ........................................................................................................................................................ 24

5.8.3 Subtract ....................................................................................................................................................... 24

5.8.4 Move ........................................................................................................................................................... 25

5.8.5 AuditValue .................................................................................................................................................. 25

5.8.6 AuditCapabilities ........................................................................................................................................ 25

5.8.7 Notify .......................................................................................................................................................... 25

5.8.8 ServiceChange ............................................................................................................................................ 25

5.8.9 Manipulating and auditing context attributes .............................................................................................. 26

5.9 Generic command syntax and encoding ........................................................................................................... 26

5.10 Transactions ..................................................................................................................................................... 27

5.11 Messages .......................................................................................................................................................... 27

5.12 Transport .......................................................................................................................................................... 27

5.13 Security ............................................................................................................................................................ 28

5.14 Packages ........................................................................................................................................................... 28

5.14.1 Overview .................................................................................................................................................... 28

ETSI
---------------------- Page: 5 ----------------------
SIST ES 283 018 V2.7.1:2009
4 ETSI ES 283 018 V2.7.1 (2009-09)

5.14.2 Package usage information ......................................................................................................................... 29

5.14.2.1 Generic (g) ............................................................................................................................................ 29

5.14.2.2 Base root (root) ..................................................................................................................................... 30

5.14.2.3 Network (nt) .......................................................................................................................................... 31

5.14.2.4 Differentiated Services (ds) ................................................................................................................... 32

5.14.2.5 Gate Management (gm) ......................................................................................................................... 33

5.14.2.6 Traffic management (tman) ................................................................................................................... 34

5.14.2.7 IP NAPT Traversal (ipnapt) .................................................................................................................. 34

5.14.2.8 MPLS (mpls) ......................................................................................................................................... 35

5.14.2.9 VLAN (vlan) ......................................................................................................................................... 35

5.14.2.10 MGC Information (mgcinfo) ................................................................................................................. 36

5.14.2.11 Inactivity (it) ......................................................................................................................................... 36

5.14.2.12 Segmentation (seg) ................................................................................................................................ 37

5.14.2.13 RTP (rtp) ............................................................................................................................................... 38

5.14.2.14 Application Data Inactivity Detection (adid) ........................................................................................ 38

5.14.2.15 IP Domain Connection (ipdc) ............................................................................................................... 39

5.14.2.16 Media Gateway Overload Control (ocp) ............................................................................................... 39

5.14.2.17 Hanging Termination Detection (hangterm) ......................................................................................... 40

5.14.2.18 Statistic Conditional Reporting (scr) ..................................................................................................... 40

5.15 Mandatory support of SDP and annex C information elements ....................................................................... 41

5.16 Optional support of SDP and annex C information elements ........................................................................... 42

5.17 Overview of Procedures ................................................................................................................................... 43

5.17.1 Overview of Session Dependent Procedures .............................................................................................. 43

5.17.1.1 Gate control ........................................................................................................................................... 44

5.17.1.2 Allocation and translation of IP addresses, ports and versions (NAPT-PT) ......................................... 46

5.17.1.3 Support of Hosted NAT Traversal ........................................................................................................ 47

5.17.1.4 QoS marking ......................................................................................................................................... 47

5.17.1.4.1 Copying DSCP/ToS values from the ingress to egress .................................................................... 47

5.17.1.4.2 Auditing the "Per-Hop Behaviour" .................................................................................................. 47

5.17.1.5 Bandwidth control - Reservation, Allocation and Policing ................................................................... 47

5.17.1.5.1 Admission Control........................................................................................................................... 48

5.17.1.5.2 Traffic Descriptor ............................................................................................................................ 48

5.17.1.5.3 Bandwidth reservation and allocation ............................................................................................. 48

5.17.1.5.4 Bandwidth policing ......................................................................................................................... 49

5.17.1.5.5 Non-specification of tman properties .............................................................................................. 49

5.17.1.6 Usage metering and statistics reporting................................................................................................. 49

5.17.1.6.1 Statistics for Media/Transport-agnostic IP packets ......................................................................... 49

5.17.1.6.2 Traffic Volume related Statistics ..................................................................................................... 49

5.17.1.7 RTCP Handling ..................................................................................................................................... 50

5.17.1.7.1 RTCP Transport Address Allocation ............................................................................................... 50

5.17.1.7.2 RTP/RTCP to-H.248 Stream Mapping ............................................................................................ 51

5.17.1.8 RTCP Forwarding ................................................................................................................................. 51

5.17.1.8.1 Conditions for RTCP packet policing .............................................................................................. 51

5.17.1.8.2 Forwarding of regular RTCP traffic ................................................................................................ 51

5.17.1.8.3 Handling of RTCP XR/HR traffic ................................................................................................... 51

5.17.1.9 Media Inactivity .................................................................................................................................... 51

5.17.1.10 IP Realm/Domain Indication ................................................................................................................. 52

5.17.1.10.1 Codepoint and format/encoding ...................................................................................................... 52

5.17.1.10.2 Unsuccessful indication ................................................................................................................... 52

5.17.1.10.3 Fix assignment per termination lifetime .......................................................................................... 52

5.17.1.10.4 Number of IP Realms/Domains ....................................................................................................... 52

5.17.1.11 Two-Stage BGF Resource Reservation ................................................................................................. 53

5.17.1.12 Hanging Termination Detection ............................................................................................................ 53

5.17.1.13 Real Time Statistics Reporting .............................................................................................................. 53

5.17.1.14 Transcoding ........................................................................................................................................... 54

5.17.1.14.1 Media types and formats (Codecs) .................................................................................................. 54

5.17.1.14.2 Decision for transcoding .................................................................................................................. 54

5.17.1.15 Void....................................................................................................................................................... 54

5.17.1.16 VPN identification ................................................................................................................................ 54

5.17.1.16.1 VLAN marking ................................................................................................................................ 54

5.17.2 Overview of Session Independent Procedures ............................................................................................ 55

5.17.2.1 Introduction - Relation to TR 183 025 [i.2] .......................................................................................... 55

ETSI
---------------------- Page: 6 ----------------------
SIST ES 283 018 V2.7.1:2009
5 ETSI ES 283 018 V2.7.1 (2009-09)

5.17.2.2 Session-independent procedures ........................................................................................................... 55

5.17.2.3 MG Overload Control: Rate limitation of H.248 Messages from MGC-to-MG ................................... 55

5.18 Session Dependent Procedures (Command Level Details) .............................................................................. 55

5.18.1 Add Termination ......................................................................................................................................... 56

5.18.1.1 Add Termination - Remote Addr and Port Known, Select Local Addr and Port .................................. 57

5.18.1.1.1 Conditions for Address Policing: SAF, SPF, SAM, SPR, SPRR .................................................... 59

5.18.1.1.2 Assigning IP Domain/Realm to Termination .................................................................................. 60

5.18.1.1.3 Add Termination - Remote Addr and Port Known, Select Local Addr and Port - Examples.......... 61

5.18.1.2 Add Termination - Select Local Addr and Port..................................................................................... 62

5.18.1.2.1 Add Termination - Select Local Addr and Port - Examples ............................................................ 65

5.18.1.3 Add Termination - Remote Addr Known, Select Local Addr ............................................................... 66

5.18.1.3.1 Add Termination - Remote Addr Known, Select Local Addr - Examples ...................................... 68

5.18.1.4 Add Termination - Select Local Addr ................................................................................................... 69

5.18.1.4.1 Add Termination - Select Local Addr - Examples .......................................................................... 70

5.18.1.5 Add Termination - Remote Addr Known and Port Possibly Known, no Local Addr and Port ............. 71

5.18.1.5.1 Add Termination - Remote Addr Known and Port Possibly Known, no Local Addr and Port -

Examples ......................................................................................................................................... 72

5.18.2 Session Establishment Update .................................................................................................................... 72

5.18.2.1 Session Establishment Update - Remote Addr and Port Known ........................................................... 73

5.18.2.1.1 Session Establishment Update - Remote Addr and Port Known - Examples .................................. 75

5.18.2.2 Session Establishment Update - Remote Addr Known ......................................................................... 78

5.18.2.2.1 Session Establishment Update - Remote Addr Known - Examples ................................................ 79

5.18.2.3 Session Establishment Update - Through Connect ............................................................................... 80

5.18.2.3.1 Session Establishment Update - Through Connect - Examples ....................................................... 82

5.18.2.4 Session Establishment Update - Select Local Port ................................................................................ 83

5.18.2.4.1 Session Establishment Update - Select Local Port - Examples ....................................................... 86

5.18.2.5 Session Establishment Update - Bandwidth Change ............................................................................. 87

5.18.2.5.1 Session Establishment Update - Bandwidth Change - Examples .................................................... 89

5.18.2.6 Session Establishment Update - Delete Stream..................................................................................... 89

5.18.2.6.1 Session Establishment Update - Delete Stream - Examples ............................................................ 92

5.18.3 Mid-Session Update .................................................................................................................................... 92

5.18.3.1 Mid-Session Update - Bandwidth Change ............................................................................................ 92

5.18.3.1.1 Mid-Session Update - Bandwidth Change - Examples.................................................................... 95

5.18.3.2 Mid-Session Update - Media Change ................................................................................................... 96

5.18.3.2.1 Mid-Session Update - Media Change - Examples ........................................................................... 98

5.18.3.3 Mid-Session Update - Remote Addr/Port Change ................................................................................ 99

5.18.3.3.1 Mid-Session Update - Remote Addr/Port Change - Examples ...................................................... 102

5.18.3.4 Mid-Session Update - Add Stream, Remote Addr and Port Known ................................................... 103

5.18.3.4.1 Mid-Session Update - Add Stream, Remote Addr and Port Known - Examples........................... 106

5.18.3.5 Mid-Session Update - Add Stream ...................................................................................................... 107

5.18.3.5.1 Mid-Session Update - Add Stream - Examples ............................................................................. 110

5.18.3.6 Mid-Session Update - Delete Stream .................................................................................................. 111

5.18.3.6.1 Mid-Session Update - Delete Stream - Examples ......................................................................... 112

5.18.3.7 Mid-Session Update - Add Stream, Remote Addr Known and Port Possibly Known, no Local

Addr and Port ...................................................................................................................................... 115

5.18.3.7.1 Mid-Session Update - Add Add Stream, Remote Addr Known and Port Possibly Known, no

Local Addr and Port - Examples ................................................................................................... 116

5.18.4 Auditing .................................................................................................................................................... 117

5.18.4.1 Mid-Session Statistics Audit ............................................................................................................... 117

5.18.4.1.1 Mid-Session Statistics Audit - Example ........................................................................................ 118

5.18.4.2 Mid-Session MGC Info Audit ............................................................................................................. 119

5.18.4.2.1 Mid-Session MGC Info Audit - Example ...................................................................................... 120

5.18.5 Notification of MG Events ....................................................................................................................... 120

5.18.5.1 Notification of IP Media Stop ............................................................................................................. 120

5.18.5.2 Notification of Hanging Termination .................................................................................................. 121

5.18.5.3 Notification of Statistic Conditional Reporting ................................................................................... 122

5.18.6 Delete Session/Termination .............................................................................................

...

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