Integrated broadband cable telecommunication networks (CABLE) - Embedded Router

The present document defines a core set of features that enable multiple subscriber devices to gain access to operator
provided high-speed data service using DOCSIS. This core set of features allows for both IPv4- and IPv6-enabled
devices to gain connectivity to the Internet.
The eRouter is specified as an Embedded Service/Application Functional Entity (eSAFE) device that is implemented in
conjunction with a DOCSIS cable modem device.
The core set of features defined in the present document includes the ability to provision multiple CPE devices, a
description of how to forward data to and from CPE devices, and also the ability to forward IP Multicast traffic to CPE
devices and among CPE devices.

Integrirana širokopasovna kabelska telekomunikacijska omrežja (CABLE) - Vgrajeni usmerjevalnik

Obstoječi dokument določa temeljni sklop značilnosti, ki napravam z več naročniki omogočajo dostop do storitev hitrega prenosa podatkov, ki jih nudi upravljavec, s pomočjo DOCSIS. Ta temeljni sklop značilnosti omogoča povezljivost z internetom za naprave, ki podpirajo tako IPv4 kot IPv6.
eRouter (elektronski usmerjevalnik) je opredeljen kot naprava z vdelanimi storitvami/aplikacijsko funkcionalna enota (eSAFE), ki se uporablja skupaj z napravo s kabelskim modemom DOCSIS.
Temeljni sklop značilnosti v obstoječem dokumentu vključuje zmožnost oskrbovanja več naprav CPE, opisuje, kako pošiljati podatke v naprave CPE in iz njih, ter zmožnost IP pošiljanja več prejemnikom v naprave CPE in med napravami CPE.

General Information

Status
Published
Publication Date
25-Mar-2018
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
19-Mar-2018
Due Date
24-May-2018
Completion Date
26-Mar-2018

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ETSI ES 203 386 V1.1.1 (2017-08)
ETSI STANDARD
Integrated broadband cable
telecommunication networks (CABLE);
Embedded Router
---------------------- Page: 1 ----------------------
2 ETSI ES 203 386 V1.1.1 (2017-08)
Reference
DES/CABLE-00009
Keywords
CABLE, DOCSIS, IPv4, IPv6, MODEM, router
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
The present document can be downloaded from:
http://www.etsi.org/standards-search

The present document may be made available in electronic versions and/or in print. The content of any electronic and/or

print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any

existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the

print of the Portable Document Format (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

https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx

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

https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification

No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying

and microfilm except as authorized by written permission of ETSI.

The content of the PDF version shall not be modified without the written authorization of ETSI.

The copyright and the foregoing restriction extend to reproduction in all media.
© ETSI 2017.
All rights reserved.
TM TM TM

DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.

3GPP and LTE™ are trademarks of ETSI registered for the benefit of its Members and

of the 3GPP Organizational Partners.
oneM2M logo is protected for the benefit of its Members.

GSM® and the GSM logo are trademarks registered and owned by the GSM Association.

ETSI
---------------------- Page: 2 ----------------------
3 ETSI ES 203 386 V1.1.1 (2017-08)
Contents

Intellectual Property Rights ................................................................................................................................ 7

Foreword ............................................................................................................................................................. 7

Modal verbs terminology .................................................................................................................................... 7

1 Scope ........................................................................................................................................................ 8

2 References ................................................................................................................................................ 8

2.1 Normative references ......................................................................................................................................... 8

2.2 Informative references ...................................................................................................................................... 11

3 Definitions and abbreviations ................................................................................................................. 12

3.1 Definitions ........................................................................................................................................................ 12

3.2 Abbreviations ................................................................................................................................................... 14

4 Theory of operation ................................................................................................................................ 16

4.0 General ............................................................................................................................................................. 16

4.1 eDOCSIS eRouter and TR-069 architecture .................................................................................................... 18

4.2 eRouter device management............................................................................................................................. 19

4.3 Service discovery ............................................................................................................................................. 19

4.3.0 General ........................................................................................................................................................ 19

4.3.1 mDNS (multicast Domain Name System) .................................................................................................. 20

4.3.2 UPnP (Universal Plug and Play) ................................................................................................................. 21

4.4 CER-ID (Customer Edge Router - Identification) ............................................................................................ 21

5 eRouter initialization .............................................................................................................................. 22

5.0 eRouter modes .................................................................................................................................................. 22

5.1 Network Time Protocol .................................................................................................................................... 23

5.2 DNS proxy forwarding ..................................................................................................................................... 24

6 IPv4 provisioning ................................................................................................................................... 24

6.0 General ............................................................................................................................................................. 24

6.1 DHCPv4 fields used by the eRouter ................................................................................................................. 26

6.2 eRouter interface addressing using Link ID ..................................................................................................... 27

6.3 Router DHCPv4 server Sub-element ................................................................................................................ 28

6.3.1 DHCPv4 server function goals ................................................................................................................... 28

6.3.2 DHCPv4 server function system description .............................................................................................. 28

6.3.3 DHCPv4 server function requirements ....................................................................................................... 28

6.4 Operator-facing IPv4 address release behavior ................................................................................................ 30

6.5 Customer-facing IPv4 address release behavior ............................................................................................... 30

7 Operator-facing IPv6 provisioning ......................................................................................................... 30

7.0 General ............................................................................................................................................................. 30

7.1 Obtain link-local address .................................................................................................................................. 31

7.2 Perform router discovery .................................................................................................................................. 31

7.3 Obtain IPv6 address and other configuration parameters ................................................................................. 31

7.4 Use of T1 and T2 timers ................................................................................................................................... 34

7.5 Customer-facing IPv6 provisioning of CPE devices ........................................................................................ 34

7.5.0 Initial provisioning ...................................................................................................................................... 34

7.5.1 Additional customer-facing IP interfaces enabled after initial provisioning ............................................... 37

7.5.2 SLAAC requirements for eRouter .............................................................................................................. 37

7.5.2.0 General .................................................................................................................................................. 37

7.5.2.1 Local configuration of SLAAC options ................................................................................................ 37

7.5.3 DHCPv6 requirements for eRouter ............................................................................................................. 37

7.5.3.0 General .................................................................................................................................................. 37

7.5.3.1 Local configuration of DHCPv6 options............................................................................................... 39

7.5.4 Prefix changes ............................................................................................................................................. 39

7.6 Operator-facing IPv6 address release behavior ................................................................................................ 39

7.7 Customer-facing IPv6 address release behavior ............................................................................................... 39

7.8 CER-ID requirements ....................................................................................................................................... 40

ETSI
---------------------- Page: 3 ----------------------
4 ETSI ES 203 386 V1.1.1 (2017-08)

8 IPv4 data forwarding and NAPT operation ............................................................................................ 40

8.0 Applicability ..................................................................................................................................................... 40

8.1 Introduction ...................................................................................................................................................... 40

8.1.1 Assumptions ............................................................................................................................................... 40

8.1.2 Overview .................................................................................................................................................... 40

8.2 System description ........................................................................................................................................... 41

8.3 IPv4 router ........................................................................................................................................................ 42

8.3.0 Overview .................................................................................................................................................... 42

8.3.1 Dual IP protocol and Link ID enabled mode IPv4 routing ......................................................................... 43

8.4 NAPT ............................................................................................................................................................... 44

8.4.0 General ........................................................................................................................................................ 44

8.4.1 Dynamically triggered NAPT translation ................................................................................................... 44

8.4.2 Application Layer Gateways (ALGs) ......................................................................................................... 45

8.4.2.0 General .................................................................................................................................................. 45

8.4.2.1 ICMP error message ALG .................................................................................................................... 45

8.4.2.2 FTP ALG .............................................................................................................................................. 45

8.4.3 Multicast NAPT .......................................................................................................................................... 45

8.5 ARP .................................................................................................................................................................. 45

8.6 IPv4 multicast ................................................................................................................................................... 46

8.6.0 General ........................................................................................................................................................ 46

8.6.1 IGMP proxying ........................................................................................................................................... 46

8.6.1.0 Operation ............................................................................................................................................... 46

8.6.1.1 IPv4 group membership database ......................................................................................................... 47

8.6.2 IPv4 multicast forwarding .......................................................................................................................... 47

8.6.3 IPv4 multicast forwarding example ............................................................................................................ 48

8.7 IPv4/IPv6 co-existence technologies ................................................................................................................ 49

8.7.0 General ........................................................................................................................................................ 49

8.7.1 Dual-stack Lite operation ............................................................................................................................ 49

8.7.2 Mapping of Address and Port (MAP) ......................................................................................................... 49

8.7.2.0 MAP transport modes ........................................................................................................................... 49

8.7.2.1 MAP-E or MAP-T configuration via DHCP ......................................................................................... 50

8.7.2.2 MAP-E or MAP-T configuration via TLV202.11 ................................................................................. 50

8.7.3 Packet fragmentation .................................................................................................................................. 50

9 IPv6 data forwarding .............................................................................................................................. 51

9.0 Applicability ..................................................................................................................................................... 51

9.1 Introduction ...................................................................................................................................................... 51

9.1.1 Assumptions ............................................................................................................................................... 51

9.1.2 Overview .................................................................................................................................................... 51

9.2 System description ........................................................................................................................................... 52

9.3 IPv6 multicast ................................................................................................................................................... 53

9.3.0 General ........................................................................................................................................................ 53

9.3.1 MLD proxying ............................................................................................................................................ 54

9.3.2 IPv6 group membership database ............................................................................................................... 55

9.3.3 IPv6 multicast forwarding .......................................................................................................................... 55

9.3.4 IPv6 multicast forwarding example ............................................................................................................ 55

10 Quality of Service ................................................................................................................................... 57

10.0 General requirements ....................................................................................................................................... 57

10.1 Downstream Quality of Service operation ....................................................................................................... 57

10.2 Upstream Quality of Service operation ............................................................................................................ 57

11 eRouter management .............................................................................................................................. 57

11.0 General requirements ....................................................................................................................................... 57

11.1 eRouter SNMP management interface requirements........................................................................................ 58

11.2 eRouter TR-069 management interface requirements ...................................................................................... 58

11.2.0 General requirements .................................................................................................................................. 58

11.2.1 ACS discovery ............................................................................................................................................ 58

11.2.1.1 eRouter TR-069 management server configuration file TLV encapsulation ........................................ 58

11.2.1.2 TR-069 management server DHCP requirements ................................................................................. 58

11.2.2 ACS selection ............................................................................................................................................. 58

11.2.3 Dynamic ACS update ................................................................................................................................. 58

11.2.4 TR-069 CWMP control and credentials ...................................................................................................... 58

ETSI
---------------------- Page: 4 ----------------------
5 ETSI ES 203 386 V1.1.1 (2017-08)

12 Security................................................................................................................................................... 59

13 eRouter tunnel management and configuration ...................................................................................... 59

13.1 GRE requirements ............................................................................................................................................ 59

Annex A (normative): SNMP MIB objects supported by the eRouter ............................................ 60

A.0 List of MIB objects ................................................................................................................................ 60

A.1 eRouter interface numbering .................................................................................................................. 60

A.2 eRouter ifTable requirements ................................................................................................................. 61

A.3 eRouter ipNetToPhysicalTable requirements ......................................................................................... 63

A.4 CLAB-GRE-MIB ................................................................................................................................... 63

A.5 CLAB-GW-MIB .................................................................................................................................... 63

Annex B (normative): Configuration of eRouter operational parameters ..................................... 65

B.1 eRouter SNMP configuration ................................................................................................................. 65

B.1.1 eRouter SNMP modes of operation .................................................................................................................. 65

B.1.2 eRouter SNMP access control configuration .................................................................................................... 65

B.1.2.1 View-based Access Control Model (VACM) profile ................................................................................. 65

B.1.3 SNMPv1v2c Coexistence Configuration.......................................................................................................... 65

B.1.3.0 General ........................................................................................................................................................ 65

B.1.3.1 Mapping SNMPv1v2c Coexistence Configuration ..................................................................................... 65

B.1.3.1.0 Overview ............................................................................................................................................... 65

B.1.3.1.1 snmpCommunityTable .......................................................................................................................... 66

B.1.3.1.2 snmpTargetAddrTable .......................................................................................................................... 66

B.1.3.1.3 snmpTargetAddrExtTable ..................................................................................................................... 67

B.1.3.1.4 vacmSecurityToGroupTable ................................................................................................................. 67

B.1.3.1.5 vacmAccessTable .................................................................................................................................. 68

B.1.3.2 Mapping SNMPv3 access view configuration ............................................................................................ 68

B.1.3.2.0 Overview ............................................................................................................................................... 68

B.1.3.2.1 vacmViewTreeFamilyTable .................................................................................................................. 69

B.2 SNMP configuration of eRouter ............................................................................................................. 69

B.3 eCM proxy mechanism for configuration of eRouter ............................................................................ 70

B.4 eRouter configuration encodings ............................................................................................................ 70

B.4.1 eRouter TLV processing .................................................................................................................................. 70

B.4.2 eRouter initialization mode encoding ............................................................................................................... 70

B.4.3 TR-069 management server ............................................................................................................................. 71

B.4.3.0 General ........................................................................................................................................................ 71

B.4.3.1 EnableCWMP ............................................................................................................................................. 71

B.4.3.2 URL ............................................................................................................................................................ 71

B.4.3.3 Username .................................................................................................................................................... 71

B.4.3.4 Password ..................................................................................................................................................... 71

B.4.3.5 ConnectionRequestUsername ..................................................................................................................... 71

B.4.3.6 ConnectionRequestPassword ...................................................................................................................... 72

B.4.3.7 ACS override .............................................................................................................................................. 72

B.4.4 eRouter initialization mode override ................................................................................................................ 72

B.4.5 SNMPv1v2c coexistence configuration ........................................................................................................... 72

B.4.5.0 General ........................................................................................................................................................ 72

B.4.5.1 SNMPv1v2c community name ................................................................................................................... 72

B.4.5.2 SNMPv1v2c transport address access ........................................................................................................ 73

B.4.5.2.0 General .................................................................................................................................................. 73

B.4.5.2.1 SNMPv1v2c transport address .............................................................................................................. 73

B.4.5.2.2 SNMPv1v2c transport address mask ..................................................................................................... 73

B.4.5.3 SNMPv1v2c access view type .................................................................................................................... 73

B.4.5.4 SNMPv1v2c access view name .................................................................................................................. 73

B.4.6 SNMPv3 access view configuration ................................................................................................................. 73

B.4.6.0 General ........................................................................................................................................................ 73

ETSI
---------------------- Page: 5 ----------------------
6 ETSI ES 203 386 V1.1.1 (2017-08)

B.4.6.1 SNMPv3 access view name ........................................................................................................................ 74

B.4.6.2 SNMPv3 access view subtree ..................................................................................................................... 74

B.4.6.3 SNMPv3 access view mask ........................................................................................................................ 74

B.4.6.4 SNMPv3 access view type .......................................................................................................................... 74

B.4.7 Vendor specific information ............................................................................................................................. 75

B.4.7.0 General ........................................................................................................................................................ 75

B.4.7.1 Vendor ID encoding.................................................................................................................................... 75

B.4.8 SNMP MIB object ..................
...

Final draft ETSI ES 203 386 V1.1.1 (2017-06)
ETSI STANDARD
Integrated broadband cable
telecommunication networks (CABLE);
Embedded Router
---------------------- Page: 1 ----------------------
2 Final draft ETSI ES 203 386 V1.1.1 (2017-06)
Reference
DES/CABLE-00009
Keywords
CABLE, DOCSIS, IPv4, IPv6, MODEM, router
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
The present document can be downloaded from:
http://www.etsi.org/standards-search

The present document may be made available in electronic versions and/or in print. The content of any electronic and/or

print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any

existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the

print of the Portable Document Format (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

https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx

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

https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification

No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying

and microfilm except as authorized by written permission of ETSI.

The content of the PDF version shall not be modified without the written authorization of ETSI.

The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2017.
All rights reserved.
TM TM TM

DECT , PLUGTESTS , UMTS and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members.

3GPP and LTE™ are Trade Marks of ETSI 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 203 386 V1.1.1 (2017-06)
Contents

Intellectual Property Rights ................................................................................................................................ 7

Foreword ............................................................................................................................................................. 7

Modal verbs terminology .................................................................................................................................... 7

1 Scope ........................................................................................................................................................ 8

2 References ................................................................................................................................................ 8

2.1 Normative references ......................................................................................................................................... 8

2.2 Informative references ...................................................................................................................................... 11

3 Definitions and abbreviations ................................................................................................................. 12

3.1 Definitions ........................................................................................................................................................ 12

3.2 Abbreviations ................................................................................................................................................... 14

4 Theory of operation ................................................................................................................................ 16

4.0 General ............................................................................................................................................................. 16

4.1 eDOCSIS eRouter and TR-069 architecture .................................................................................................... 18

4.2 eRouter device management............................................................................................................................. 19

4.3 Service discovery ............................................................................................................................................. 20

4.3.0 General ........................................................................................................................................................ 20

4.3.1 mDNS (multicast Domain Name System) .................................................................................................. 20

4.3.2 UPnP (Universal Plug and Play) ................................................................................................................. 21

4.4 CER-ID (Customer Edge Router - Identification) ............................................................................................ 21

5 eRouter initialization .............................................................................................................................. 22

5.0 eRouter modes .................................................................................................................................................. 22

5.1 Network Time Protocol .................................................................................................................................... 23

5.2 DNS proxy forwarding ..................................................................................................................................... 24

6 IPv4 provisioning ................................................................................................................................... 25

6.0 General ............................................................................................................................................................. 25

6.1 DHCPv4 fields used by the eRouter ................................................................................................................. 26

6.2 eRouter interface addressing using Link ID ..................................................................................................... 27

6.3 Router DHCPv4 server Sub-element ................................................................................................................ 28

6.3.1 DHCPv4 server function goals ................................................................................................................... 28

6.3.2 DHCPv4 server function system description .............................................................................................. 28

6.3.3 DHCPv4 server function requirements ....................................................................................................... 29

6.4 Operator-facing IPv4 address release behavior ................................................................................................ 30

6.5 Customer-facing IPv4 address release behavior ............................................................................................... 31

7 Operator-facing IPv6 provisioning ......................................................................................................... 31

7.0 General ............................................................................................................................................................. 31

7.1 Obtain link-local address .................................................................................................................................. 32

7.2 Perform router discovery .................................................................................................................................. 32

7.3 Obtain IPv6 address and other configuration parameters ................................................................................. 32

7.4 Use of T1 and T2 timers ................................................................................................................................... 35

7.5 Customer-facing IPv6 provisioning of CPE devices ........................................................................................ 35

7.5.0 Initial provisioning ...................................................................................................................................... 35

7.5.1 Additional customer-facing IP interfaces enabled after initial provisioning ............................................... 37

7.5.2 SLAAC requirements for eRouter .............................................................................................................. 37

7.5.2.0 General .................................................................................................................................................. 37

7.5.2.1 Local configuration of SLAAC options ................................................................................................ 38

7.5.3 DHCPv6 requirements for eRouter ............................................................................................................. 38

7.5.3.0 General .................................................................................................................................................. 38

7.5.3.1 Local configuration of DHCPv6 options............................................................................................... 39

7.5.4 Prefix changes ............................................................................................................................................. 39

7.6 Operator-facing IPv6 address release behavior ................................................................................................ 40

7.7 Customer-facing IPv6 address release behavior ............................................................................................... 40

7.8 CER-ID requirements ....................................................................................................................................... 40

ETSI
---------------------- Page: 3 ----------------------
4 Final draft ETSI ES 203 386 V1.1.1 (2017-06)

8 IPv4 data forwarding and NAPT operation ............................................................................................ 41

8.0 Applicability ..................................................................................................................................................... 41

8.1 Introduction ...................................................................................................................................................... 41

8.1.1 Assumptions ............................................................................................................................................... 41

8.1.2 Overview .................................................................................................................................................... 41

8.2 System description ........................................................................................................................................... 41

8.3 IPv4 router ........................................................................................................................................................ 43

8.3.0 Overview .................................................................................................................................................... 43

8.3.1 Dual IP protocol and Link ID enabled mode IPv4 routing ......................................................................... 44

8.4 NAPT ............................................................................................................................................................... 45

8.4.0 General ........................................................................................................................................................ 45

8.4.1 Dynamically triggered NAPT translation ................................................................................................... 45

8.4.2 Application Layer Gateways (ALGs) ......................................................................................................... 46

8.4.2.0 General .................................................................................................................................................. 46

8.4.2.1 ICMP error message ALG .................................................................................................................... 46

8.4.2.2 FTP ALG .............................................................................................................................................. 46

8.4.3 Multicast NAPT .......................................................................................................................................... 46

8.5 ARP .................................................................................................................................................................. 46

8.6 IPv4 multicast ................................................................................................................................................... 47

8.6.0 General ........................................................................................................................................................ 47

8.6.1 IGMP proxying ........................................................................................................................................... 48

8.6.1.0 Operation ............................................................................................................................................... 48

8.6.1.1 IPv4 group membership database ......................................................................................................... 48

8.6.2 IPv4 multicast forwarding .......................................................................................................................... 49

8.6.3 IPv4 multicast forwarding example ............................................................................................................ 49

8.7 IPv4/IPv6 co-existence technologies ................................................................................................................ 50

8.7.0 General ........................................................................................................................................................ 50

8.7.1 Dual-stack Lite operation ............................................................................................................................ 50

8.7.2 Mapping of Address and Port (MAP) ......................................................................................................... 51

8.7.2.0 MAP transport modes ........................................................................................................................... 51

8.7.2.1 MAP-E or MAP-T configuration via DHCP ......................................................................................... 51

8.7.2.2 MAP-E or MAP-T configuration via TLV202.11 ................................................................................. 52

8.7.3 Packet fragmentation .................................................................................................................................. 52

9 IPv6 data forwarding .............................................................................................................................. 52

9.0 Applicability ..................................................................................................................................................... 52

9.1 Introduction ...................................................................................................................................................... 52

9.1.1 Assumptions ............................................................................................................................................... 52

9.1.2 Overview .................................................................................................................................................... 53

9.2 System description ........................................................................................................................................... 53

9.3 IPv6 multicast ................................................................................................................................................... 55

9.3.0 General ........................................................................................................................................................ 55

9.3.1 MLD proxying ............................................................................................................................................ 56

9.3.2 IPv6 group membership database ............................................................................................................... 56

9.3.3 IPv6 multicast forwarding .......................................................................................................................... 57

9.3.4 IPv6 multicast forwarding example ............................................................................................................ 57

10 Quality of Service ................................................................................................................................... 59

10.0 General requirements ....................................................................................................................................... 59

10.1 Downstream Quality of Service operation ....................................................................................................... 59

10.2 Upstream Quality of Service operation ............................................................................................................ 59

11 eRouter management .............................................................................................................................. 59

11.0 General requirements ....................................................................................................................................... 59

11.1 eRouter SNMP management interface requirements........................................................................................ 60

11.2 eRouter TR-069 management interface requirements ...................................................................................... 60

11.2.0 General requirements .................................................................................................................................. 60

11.2.1 ACS discovery ............................................................................................................................................ 60

11.2.1.1 eRouter TR-069 management server configuration file TLV encapsulation ........................................ 60

11.2.1.2 TR-069 management server DHCP requirements ................................................................................. 60

11.2.2 ACS selection ............................................................................................................................................. 60

11.2.3 Dynamic ACS update ................................................................................................................................. 60

11.2.4 TR-069 CWMP control and credentials ...................................................................................................... 60

ETSI
---------------------- Page: 4 ----------------------
5 Final draft ETSI ES 203 386 V1.1.1 (2017-06)

12 Security................................................................................................................................................... 61

13 eRouter tunnel management and configuration ...................................................................................... 61

13.1 GRE requirements ............................................................................................................................................ 61

Annex A (normative): SNMP MIB objects supported by the eRouter ............................................ 63

A.0 List of MIB objects ................................................................................................................................ 63

A.1 eRouter interface numbering .................................................................................................................. 63

A.2 eRouter ifTable requirements ................................................................................................................. 64

A.3 eRouter ipNetToPhysicalTable requirements ......................................................................................... 66

A.4 CLAB-GRE-MIB ................................................................................................................................... 66

A.5 CLAB-GW-MIB .................................................................................................................................... 66

Annex B (normative): Configuration of eRouter operational parameters ..................................... 68

B.1 eRouter SNMP configuration ................................................................................................................. 68

B.1.1 eRouter SNMP modes of operation .................................................................................................................. 68

B.1.2 eRouter SNMP access control configuration .................................................................................................... 68

B.1.2.1 View-based Access Control Model (VACM) profile ................................................................................. 68

B.1.3 SNMPv1v2c Coexistence Configuration.......................................................................................................... 68

B.1.3.0 General ........................................................................................................................................................ 68

B.1.3.1 Mapping SNMPv1v2c Coexistence Configuration ..................................................................................... 69

B.1.3.1.0 Overview ............................................................................................................................................... 69

B.1.3.1.1 snmpCommunityTable .......................................................................................................................... 69

B.1.3.1.2 snmpTargetAddrTable .......................................................................................................................... 70

B.1.3.1.3 snmpTargetAddrExtTable ..................................................................................................................... 70

B.1.3.1.4 vacmSecurityToGroupTable ................................................................................................................. 71

B.1.3.1.5 vacmAccessTable .................................................................................................................................. 71

B.1.3.2 Mapping SNMPv3 access view configuration ............................................................................................ 72

B.1.3.2.0 Overview ............................................................................................................................................... 72

B.1.3.2.1 vacmViewTreeFamilyTable .................................................................................................................. 72

B.2 SNMP configuration of eRouter ............................................................................................................. 73

B.3 eCM proxy mechanism for configuration of eRouter ............................................................................ 74

B.4 eRouter configuration encodings ............................................................................................................ 74

B.4.1 eRouter TLV processing .................................................................................................................................. 74

B.4.2 eRouter initialization mode encoding ............................................................................................................... 74

B.4.3 TR-069 management server ............................................................................................................................. 74

B.4.3.0 General ........................................................................................................................................................ 74

B.4.3.1 EnableCWMP ............................................................................................................................................. 75

B.4.3.2 URL ............................................................................................................................................................ 75

B.4.3.3 Username .................................................................................................................................................... 75

B.4.3.4 Password ..................................................................................................................................................... 75

B.4.3.5 ConnectionRequestUsername ..................................................................................................................... 75

B.4.3.6 ConnectionRequestPassword ...................................................................................................................... 75

B.4.3.7 ACS override .............................................................................................................................................. 76

B.4.4 eRouter initialization mode override ................................................................................................................ 76

B.4.5 SNMPv1v2c coexistence configuration ........................................................................................................... 76

B.4.5.0 General ........................................................................................................................................................ 76

B.4.5.1 SNMPv1v2c community name ................................................................................................................... 76

B.4.5.2 SNMPv1v2c transport address access ........................................................................................................ 77

B.4.5.2.0 General .................................................................................................................................................. 77

B.4.5.2.1 SNMPv1v2c transport address .............................................................................................................. 77

B.4.5.2.2 SNMPv1v2c transport address mask ..................................................................................................... 77

B.4.5.3 SNMPv1v2c access view type .................................................................................................................... 77

B.4.5.4 SNMPv1v2c access view name .................................................................................................................. 77

B.4.6 SNMPv3 access view configuration ................................................................................................................. 78

B.4.6.0 General ........................................................................................................................................................ 78

ETSI
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6 Final draft ETSI ES 203 386 V1.1.1 (2017-06)

B.4.6.1 SNMPv3 access view name ........................................................................................................................ 78

B.4.6.2 SNMPv3 access view subtree ..................................................................................................................... 78

B.4.6.3 SNMPv3 access view mask ........................................................................................................................ 78

B.4.6.4 SNMPv3 access view type .......................................................................................................................... 78

B.4.7 Vendor specific information ............................................................................................................................. 79

B.4.7.0 General ........................................................................................................................................................ 79

B.4.7.1 Vendor ID encoding..........................................................................................................................

...

SLOVENSKI STANDARD
SIST ES 203 386 V1.1.1:2018
01-maj-2018
Integrirana širokopasovna kabelska telekomunikacijska omrežja (CABLE) -
Vgrajeni usmerjevalnik
Integrated broadband cable telecommunication networks (CABLE) - Embedded Router
Ta slovenski standard je istoveten z: ETSI ES 203 386 V1.1.1 (2017-08)
ICS:
33.040.01 Telekomunikacijski sistemi Telecommunication systems
na splošno in general
35.200 Vmesniška in povezovalna Interface and interconnection
oprema equipment
SIST ES 203 386 V1.1.1:2018 en

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

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SIST ES 203 386 V1.1.1:2018
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SIST ES 203 386 V1.1.1:2018
ETSI ES 203 386 V1.1.1 (2017-08)
ETSI STANDARD
Integrated broadband cable
telecommunication networks (CABLE);
Embedded Router
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SIST ES 203 386 V1.1.1:2018
2 ETSI ES 203 386 V1.1.1 (2017-08)
Reference
DES/CABLE-00009
Keywords
CABLE, DOCSIS, IPv4, IPv6, MODEM, router
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
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DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.

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GSM® and the GSM logo are trademarks registered and owned by the GSM Association.

ETSI
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SIST ES 203 386 V1.1.1:2018
3 ETSI ES 203 386 V1.1.1 (2017-08)
Contents

Intellectual Property Rights ................................................................................................................................ 7

Foreword ............................................................................................................................................................. 7

Modal verbs terminology .................................................................................................................................... 7

1 Scope ........................................................................................................................................................ 8

2 References ................................................................................................................................................ 8

2.1 Normative references ......................................................................................................................................... 8

2.2 Informative references ...................................................................................................................................... 11

3 Definitions and abbreviations ................................................................................................................. 12

3.1 Definitions ........................................................................................................................................................ 12

3.2 Abbreviations ................................................................................................................................................... 14

4 Theory of operation ................................................................................................................................ 16

4.0 General ............................................................................................................................................................. 16

4.1 eDOCSIS eRouter and TR-069 architecture .................................................................................................... 18

4.2 eRouter device management............................................................................................................................. 19

4.3 Service discovery ............................................................................................................................................. 19

4.3.0 General ........................................................................................................................................................ 19

4.3.1 mDNS (multicast Domain Name System) .................................................................................................. 20

4.3.2 UPnP (Universal Plug and Play) ................................................................................................................. 21

4.4 CER-ID (Customer Edge Router - Identification) ............................................................................................ 21

5 eRouter initialization .............................................................................................................................. 22

5.0 eRouter modes .................................................................................................................................................. 22

5.1 Network Time Protocol .................................................................................................................................... 23

5.2 DNS proxy forwarding ..................................................................................................................................... 24

6 IPv4 provisioning ................................................................................................................................... 24

6.0 General ............................................................................................................................................................. 24

6.1 DHCPv4 fields used by the eRouter ................................................................................................................. 26

6.2 eRouter interface addressing using Link ID ..................................................................................................... 27

6.3 Router DHCPv4 server Sub-element ................................................................................................................ 28

6.3.1 DHCPv4 server function goals ................................................................................................................... 28

6.3.2 DHCPv4 server function system description .............................................................................................. 28

6.3.3 DHCPv4 server function requirements ....................................................................................................... 28

6.4 Operator-facing IPv4 address release behavior ................................................................................................ 30

6.5 Customer-facing IPv4 address release behavior ............................................................................................... 30

7 Operator-facing IPv6 provisioning ......................................................................................................... 30

7.0 General ............................................................................................................................................................. 30

7.1 Obtain link-local address .................................................................................................................................. 31

7.2 Perform router discovery .................................................................................................................................. 31

7.3 Obtain IPv6 address and other configuration parameters ................................................................................. 31

7.4 Use of T1 and T2 timers ................................................................................................................................... 34

7.5 Customer-facing IPv6 provisioning of CPE devices ........................................................................................ 34

7.5.0 Initial provisioning ...................................................................................................................................... 34

7.5.1 Additional customer-facing IP interfaces enabled after initial provisioning ............................................... 37

7.5.2 SLAAC requirements for eRouter .............................................................................................................. 37

7.5.2.0 General .................................................................................................................................................. 37

7.5.2.1 Local configuration of SLAAC options ................................................................................................ 37

7.5.3 DHCPv6 requirements for eRouter ............................................................................................................. 37

7.5.3.0 General .................................................................................................................................................. 37

7.5.3.1 Local configuration of DHCPv6 options............................................................................................... 39

7.5.4 Prefix changes ............................................................................................................................................. 39

7.6 Operator-facing IPv6 address release behavior ................................................................................................ 39

7.7 Customer-facing IPv6 address release behavior ............................................................................................... 39

7.8 CER-ID requirements ....................................................................................................................................... 40

ETSI
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SIST ES 203 386 V1.1.1:2018
4 ETSI ES 203 386 V1.1.1 (2017-08)

8 IPv4 data forwarding and NAPT operation ............................................................................................ 40

8.0 Applicability ..................................................................................................................................................... 40

8.1 Introduction ...................................................................................................................................................... 40

8.1.1 Assumptions ............................................................................................................................................... 40

8.1.2 Overview .................................................................................................................................................... 40

8.2 System description ........................................................................................................................................... 41

8.3 IPv4 router ........................................................................................................................................................ 42

8.3.0 Overview .................................................................................................................................................... 42

8.3.1 Dual IP protocol and Link ID enabled mode IPv4 routing ......................................................................... 43

8.4 NAPT ............................................................................................................................................................... 44

8.4.0 General ........................................................................................................................................................ 44

8.4.1 Dynamically triggered NAPT translation ................................................................................................... 44

8.4.2 Application Layer Gateways (ALGs) ......................................................................................................... 45

8.4.2.0 General .................................................................................................................................................. 45

8.4.2.1 ICMP error message ALG .................................................................................................................... 45

8.4.2.2 FTP ALG .............................................................................................................................................. 45

8.4.3 Multicast NAPT .......................................................................................................................................... 45

8.5 ARP .................................................................................................................................................................. 45

8.6 IPv4 multicast ................................................................................................................................................... 46

8.6.0 General ........................................................................................................................................................ 46

8.6.1 IGMP proxying ........................................................................................................................................... 46

8.6.1.0 Operation ............................................................................................................................................... 46

8.6.1.1 IPv4 group membership database ......................................................................................................... 47

8.6.2 IPv4 multicast forwarding .......................................................................................................................... 47

8.6.3 IPv4 multicast forwarding example ............................................................................................................ 48

8.7 IPv4/IPv6 co-existence technologies ................................................................................................................ 49

8.7.0 General ........................................................................................................................................................ 49

8.7.1 Dual-stack Lite operation ............................................................................................................................ 49

8.7.2 Mapping of Address and Port (MAP) ......................................................................................................... 49

8.7.2.0 MAP transport modes ........................................................................................................................... 49

8.7.2.1 MAP-E or MAP-T configuration via DHCP ......................................................................................... 50

8.7.2.2 MAP-E or MAP-T configuration via TLV202.11 ................................................................................. 50

8.7.3 Packet fragmentation .................................................................................................................................. 50

9 IPv6 data forwarding .............................................................................................................................. 51

9.0 Applicability ..................................................................................................................................................... 51

9.1 Introduction ...................................................................................................................................................... 51

9.1.1 Assumptions ............................................................................................................................................... 51

9.1.2 Overview .................................................................................................................................................... 51

9.2 System description ........................................................................................................................................... 52

9.3 IPv6 multicast ................................................................................................................................................... 53

9.3.0 General ........................................................................................................................................................ 53

9.3.1 MLD proxying ............................................................................................................................................ 54

9.3.2 IPv6 group membership database ............................................................................................................... 55

9.3.3 IPv6 multicast forwarding .......................................................................................................................... 55

9.3.4 IPv6 multicast forwarding example ............................................................................................................ 55

10 Quality of Service ................................................................................................................................... 57

10.0 General requirements ....................................................................................................................................... 57

10.1 Downstream Quality of Service operation ....................................................................................................... 57

10.2 Upstream Quality of Service operation ............................................................................................................ 57

11 eRouter management .............................................................................................................................. 57

11.0 General requirements ....................................................................................................................................... 57

11.1 eRouter SNMP management interface requirements........................................................................................ 58

11.2 eRouter TR-069 management interface requirements ...................................................................................... 58

11.2.0 General requirements .................................................................................................................................. 58

11.2.1 ACS discovery ............................................................................................................................................ 58

11.2.1.1 eRouter TR-069 management server configuration file TLV encapsulation ........................................ 58

11.2.1.2 TR-069 management server DHCP requirements ................................................................................. 58

11.2.2 ACS selection ............................................................................................................................................. 58

11.2.3 Dynamic ACS update ................................................................................................................................. 58

11.2.4 TR-069 CWMP control and credentials ...................................................................................................... 58

ETSI
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SIST ES 203 386 V1.1.1:2018
5 ETSI ES 203 386 V1.1.1 (2017-08)

12 Security................................................................................................................................................... 59

13 eRouter tunnel management and configuration ...................................................................................... 59

13.1 GRE requirements ............................................................................................................................................ 59

Annex A (normative): SNMP MIB objects supported by the eRouter ............................................ 60

A.0 List of MIB objects ................................................................................................................................ 60

A.1 eRouter interface numbering .................................................................................................................. 60

A.2 eRouter ifTable requirements ................................................................................................................. 61

A.3 eRouter ipNetToPhysicalTable requirements ......................................................................................... 63

A.4 CLAB-GRE-MIB ................................................................................................................................... 63

A.5 CLAB-GW-MIB .................................................................................................................................... 63

Annex B (normative): Configuration of eRouter operational parameters ..................................... 65

B.1 eRouter SNMP configuration ................................................................................................................. 65

B.1.1 eRouter SNMP modes of operation .................................................................................................................. 65

B.1.2 eRouter SNMP access control configuration .................................................................................................... 65

B.1.2.1 View-based Access Control Model (VACM) profile ................................................................................. 65

B.1.3 SNMPv1v2c Coexistence Configuration.......................................................................................................... 65

B.1.3.0 General ........................................................................................................................................................ 65

B.1.3.1 Mapping SNMPv1v2c Coexistence Configuration ..................................................................................... 65

B.1.3.1.0 Overview ............................................................................................................................................... 65

B.1.3.1.1 snmpCommunityTable .......................................................................................................................... 66

B.1.3.1.2 snmpTargetAddrTable .......................................................................................................................... 66

B.1.3.1.3 snmpTargetAddrExtTable ..................................................................................................................... 67

B.1.3.1.4 vacmSecurityToGroupTable ................................................................................................................. 67

B.1.3.1.5 vacmAccessTable .................................................................................................................................. 68

B.1.3.2 Mapping SNMPv3 access view configuration ............................................................................................ 68

B.1.3.2.0 Overview ............................................................................................................................................... 68

B.1.3.2.1 vacmViewTreeFamilyTable .................................................................................................................. 69

B.2 SNMP configuration of eRouter ............................................................................................................. 69

B.3 eCM proxy mechanism for configuration of eRouter ............................................................................ 70

B.4 eRouter configuration encodings ............................................................................................................ 70

B.4.1 eRouter TLV processing .................................................................................................................................. 70

B.4.2 eRouter initialization mode encoding ............................................................................................................... 70

B.4.3 TR-069 management server ............................................................................................................................. 71

B.4.3.0 General ........................................................................................................................................................ 71

B.4.3.1 EnableCWMP ............................................................................................................................................. 71

B.4.3.2 URL ............................................................................................................................................................ 71

B.4.3.3 Username .................................................................................................................................................... 71

B.4.3.4 Password ..................................................................................................................................................... 71

B.4.3.5 ConnectionRequestUsername ..................................................................................................................... 71

B.4.3.6 ConnectionRequestPassword ...................................................................................................................... 72

B.4.3.7 ACS override .............................................................................................................................................. 72

B.4.4 eRouter initialization mode override ................................................................................................................ 72

B.4.5 SNMPv1v2c coexistence configuration ........................................................................................................... 72

B.4.5.0 General ........................................................................................................................................................ 72

B.4.5.1 SNMPv1v2c community name ................................................................................................................... 72

B.4.5.2 SNMPv1v2c transport address access ........................................................................................................ 73

B.4.5.2.0 General .................................................................................................................................................. 73

B.4.5.2.1 SNMPv1v2c transport address .............................................................................................................. 73

B.4.5.2.2 SNMPv1v2c transport address mask ..................................................................................................... 73

B.4.5.3 SNMPv1v2c access view type .................................................................................................................... 73

B.4.5.4 SNMPv1v2c access view name .................................................................................................................. 73

B.4.6 SNMPv3 access view configuration ................................................................................................................. 73

B.4.6.0 General ........................................................................................................................................................ 73

ETSI
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SIST ES 203 386 V1.1.1:2018
6 ETSI ES 203 386 V1.1.1 (2017-08)

B.4.6.1 SNMPv3 access view name ........................................................................................................................ 74

B.4.6.2 SNMPv3 access view subtree ..........................
...

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