ETSI GS NIN 005 V1.1.1 (2022-11)

Non-IP Networking (NIN); Signalling messages and protocols

DGS/NIN-05

General Information

• Status: Not Published
• Technical Committee: NIN - Non-IP Networking
• Current Stage: 12 - Completion
• Due Date: 25-Nov-2022
• Completion Date: 16-Nov-2022

Standards Content (Sample)

GROUP SPECIFICATION
Non-IP Networking (NIN);
Signalling messages and protocols
Disclaimer
The present document has been produced and approved by the Non-IP Networking (NIN) ETSI Industry Specification Group
(ISG) and represents the views of those members who participated in this ISG.
It does not necessarily represent the views of the entire ETSI membership.

2 ETSI GS NIN 005 V1.1.1 (2022-11)

Reference
DGS/NIN-005
Keywords
ASN.1, core network, fixed networks, flexilink, layer 3,
network management, next generation protocol, QoS,
routing support, SDN, self-organizing, signalling, slicing,
synchronization, UNI
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All rights reserved.
ETSI
3 ETSI GS NIN 005 V1.1.1 (2022-11)
Contents
Intellectual Property Rights . 8
Foreword . 8
Modal verbs terminology . 8
1 Scope . 9
2 References . 9
2.1 Normative references . 9
2.2 Informative references . 10
3 Definition of terms, symbols and abbreviations . 11
3.1 Terms . 11
3.2 Symbols . 11
3.3 Abbreviations . 11
4 Identifiers . 12
4.1 Bit and byte order . 12
4.2 Unit iden ti fiers . 12
4.3 Call, route and flow identifiers . 13
4.3.1 Calls . 13
4.3.2 Routes . 13
4.3.3 Identifiers . 13
4.4 Addresses . 14
5 Transactions and messages . 16
5.1 Control plane entities and signalling flows . 16
5.2 Transaction configuration and message classes . 16
5.2.1 Data units . 16
5.2.2 Transaction configuration . 17
5.2.3 Message classes . 17
5.3 Transaction process . 17
5.3.1 General . 17
5.3.2 Timeouts . 18
5.3.3 Responder . 18
5.3.4 Intermediate entities . 18
5.3.4.1 Request messages . 18
5.3.4.2 Other messages when there is a single uptree flow . 19
5.3.4.3 Response messages when there are multiple uptree flows . 19
5.3.4.4 Tree pruning . 19
5.3.4.5 Confirmation messages when there are multiple uptree flows . 19
5.3.4.6 Completion messages when there are multiple uptree flows . 20
5.3.5 Originator . 20
5.3.5.1 Request messages . 20
5.3.5.2 Other messages when there is a single uptree flow . 20
5.3.5.3 Response messages when there are multiple uptree flows . 20
5.3.5.4 Tree pruning . 20
5.3.5.5 Completion messages when there are multiple uptree flows . 21
5.3.6 Abandoning transactions . 21
5.4 Transaction types . 21
5.4.1 Summary . 21
5.4.2 Link-specific transactions . 22
5.5 Data unit format . 22
5.5.1 General . 22
5.5.2 Abstract format . 22
5.5.3 Message fixed part . 23
5.5.4 Acknowledgement . 23
5.5.5 Long messages . 24
5.5.6 Transparent coding . 24
5.5.7 ASN.1 coding . 25
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4 ETSI GS NIN 005 V1.1.1 (2022-11)
5.6 Syntax of fixed IEs . 25
5.6.1 Summary . 25
5.6.2 Route identifier . 25
5.6.3 Serial number . 26
5.6.4 OIDs. 26
5.6.5 Serial number for SyncInfo . 26
5.6.6 Information about network time . 27
5.6.7 Source of timing . 27
5.6.8 Unit relaying timing . 28
5.7 Syntax of variable IEs . 28
5.7.1 Summary . 28
5.7.2 Called address . 29
5.7.3 Flow descriptor . 29
5.7.4 Data format or protocol . 30
5.7.5 Start and end time . 30
5.7.6 Importance . 30
5.7.7 Names . 30
5.7.8 Password . 31
5.7.9 Charge for call . 31
5.7.10 Caller's identity . 31
5.7.11 Route metric. 32
5.7.12 Bandwidth . 32
5.7.13 Basic service traffic parameters . 33
5.7.14 Link-specific resource allocations . 33
5.7.14.1 General . 33
5.7.14.2 Guaranteed service on tightly synchronized links . 33
5.7.14.3 Guaranteed service on loosely synchronized links . 34
5.7.14.4 Basic service . 34
5.7.15 End-to-end delay . 34
5.7.16 Route identifier of multicast . 35
5.7.17 Cause . 35
5.7.18 Route and flow selection . 35
5.7.19 Alternatives . 36
5.7.20 Group . 36
5.7.21 Interim offer . 36
5.7.22 Number of destinations . 36
5.7.23 User data . 37
5.7.24 MessageType . 37
5.7.25 Extended IE types . 37
6 Protocols for route and flow management . 38
6.1 Establishing a route . 38
6.1.1 Connection of flows . 38
6.1.2 Request message . 38
6.1.3 Action on receiving a FindRoute request . 39
6.1.3.1 Initial processing . 39
6.1.3.2 Joining an existing multicast . 39
6.1.3.3 Accepting a call . 40
6.1.3.4 Passing the request on . 41
6.1.4 Action on receiving on a FindRoute response . 41
6.1.4.1 Action by intermediate entities . 41
6.1.4.2 Action by the caller . 41
6.1.5 Passing on a FindRoute confirmation . 43
6.1.6 Action of the responder on receiving a FindRoute confirmation . 43
6.1.7 FindRoute completion message . 43
6.2 Disconnection of routes and flows . 44
6.2.1 General . 44
6.2.2 Terminate request message . 44
6.2.3 Action on receiving a Terminate request message . 45
6.2.3.1 Initial processing . 45
6.2.3.2 Clearing down a link within a route . 45
6.2.3.3 Clearing down a link when a ClientIdentity IE is included . 45
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5 ETSI GS NIN 005 V1.1.1 (2022-11)
6.3 Adding new flows to an existing route . 46
6.4 Information messages related to a route . 46
6.4.1 General . 46
6.4.2 Notification of the number of destinations . 46
6.4.3 Out-of-band data . 46
6.4.4 Changing service parameters . 47
6.4.5 Checking flows and routes . 47
7 Frame alignment for the guaranteed service . 47
7.1 General . 47
7.1.1 Classification of links between units . 47
7.1.2 Tightly synchronized links . 47
7.1.3 Loosely synchronized links . 48
7.1.4 Classification of groups of units . 48
7.1.5 Alignment of frames within an island . 49
7.1.6 Alignment of frames within a cloud . 49
7.1.7 Establishment of sync domains . 50
7.1.8 Action on link down . 50
7.2 Procedures . 50
7.2.1 End equipment . 50
7.2.2 Network elements that route between multiple interfaces . 51
7.2.2.1 General . 51
7.2.2.1.1 Frame alignment . 51
7.2.2.1.2 Maintaining frame rate . 51
7.2.2.1.3 Checking alignment . 51
7.2.2.2 Frame alignment states . 51
7.2.2.3 Link up . 51
7.2.2.3.1 Initiating frame alignment . 51
7.2.2.3.2 "Await sync" state . 52
7.2.2.3.3 Aligning frames . 52
7.2.2.3.4 Joining one sync domain to another . 53
7.2.2.4 Link down . 53
7.3 FrameSyncInfo signalling messages . 53
7.3.1 Communicating entities . 53
7.3.2 Data unit format . 53
7.3.3 State information . 54
7.3.3.1 Information for each link . 54
7.3.3.2 Sync source . 54
7.3.3.3 "New" sync source . 55
7.3.4 Downstream messages . 55
7.3.5 Upstream messages . 55
7.3.6 Handover messages. 55
7.3.6.1 General . 55
7.3.6.2 Handover message on the upstream link . 56
7.3.6.3 Handover message on other links . 56
8 Network time . 56
8.1 Timing information . 56
8.1.1 General . 56
8.1.2 Local time . 56
8.1.3 Timing data format . 57
8.1.4 Updating network time . 57
8.2 TimeSyncInfo signalling messages . 57
8.2.1 Communicating entities . 57
8.2.2 Data unit format . 58
8.2.3 Sync source . 58
8.2.4 Protocols . 58
8.2.5 Accuracy of tracking network time . 59
Annex A (normative): 1 Gb/s Ethernet physical links. 60
A.1 Link negotiation using Ethernet packets . 60
A.1.1 General . 60
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6 ETSI GS NIN 005 V1.1.1 (2022-11)
A.1.2 Packet format . 60
A.1.3 Information required to support the negotiation process . 61
A.1.3.1 States of an interface . 61
A.1.3.2 Timer . 61
A.1.3.3 Configuration . 62
A.1.4 Negotiation procedure . 62
A.1.4.1 Initiation of procedure . 62
A.1.4.2 Reception of LinkRequest message . 62
A.1.4.3 Reception of LinkAccept message . 62
A.1.4.4 Reception of LinkReject message . 63
A.1.4.5 Timeout . 63
A.1.4.6 Reception of Flexilink frames . 63
A.1.5 Information Elements (IEs) in negotiation packets . 63
A.1.5.1 IE format . 63
A.1.5.2 Padding IE . 64
A.1.5.3 SenderIdentification IE . 64
A.1.5.4 SignallingFlow IE . 64
A.1.5.5 RecipientIdentification IE . 64
A.1.5.6 LinkType IE . 64
A.2 Link negotiation using Flexilink signalling messages . 65
A.3 Data transfer . 65
A.4 Link-specific IE formats . 66
A.4.1 SlotAlloc IE on tightly synchronized links . 66
A.4.2 SlotAlloc IE on loosely synchronized links . 66
A.4.3 BasicAlloc IE . 66
Annex B (normative): Virtual links . 68
B.1 Encapsulation . 68
B.1.1 General . 68
B.1.2 Encapsulation in Ethernet . 68
B.1.3 Encapsulation in UDP . 68
B.2 Payload formats . 69
B.2.1 Common header . 69
B.2.2 Negotiation packets . 69
B.2.3 Basic service frames . 69
B.2.4 Link timing frames . 70
B.3 Establishment of a link . 70
B.3.1 General . 70
B.3.2 Reception of LinkRequest message . 71
B.3.3 Reception of LinkAccept message . 71
B.3.4 Reception of LinkReject message . 71
B.3.5 Timeout . 71
B.3.6 Link termination . 71
B.3.7 Address translation . 71
B.4 Data transfer . 71
B.4.1 Basic service packets . 71
B.4.2 Guaranteed service packets . 72
B.4.3 Keepalives . 72
Annex C (normative): Simple Control Protocol . 73
C.1 General . 73
C.2 Request message . 73
C.3 Reply message . 74
C.4 Protocol . 74
ETSI
7 ETSI GS NIN 005 V1.1.1 (2022-11)
History . 75

ETSI
8 ETSI GS NIN 005 V1.1.1 (2022-11)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The declarations
pertaining to these essential IPRs, if any, are publicly available for ETSI members and non-members, and can be
found in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to
ETSI in respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the
ETSI Web server (https://ipr.etsi.org/).
Pursuant to the ETSI Directives including the ETSI IPR Policy, no investigation regarding the essentiality of IPRs,
including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not
referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become,
essential to the present document.
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ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
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not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
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 a trademark of ETSI registered for the benefit of its Members and of the ®
oneM2M Partners. GSM and the GSM logo are trademarks registered and owned by the GSM Association.
Foreword
This Group Specification (GS) has been produced by ETSI Industry Specification Group (ISG) Non-IP Networking
(NIN).
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.

ETSI
9 ETSI GS NIN 005 V1.1.1 (2022-11)
1 Scope
The present document specifies procedures and packet formats for network processes including: setting packet flows
up, modifying and re-routing them and clearing them down; exchanging information on timing and synchronization and
conveying user messages that are not part of a flow.
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI GS NGP 013: "Next Generation Protocols (NGP); Flexilink: efficient deterministic packet
forwarding in user plane for NGP; Packet formats and forwarding mechanisms".
™
[2] IEEE : "Guidelines for Use of Extended Unique Identifier (EUI), Organizationally Unique
Identifier (OUI), and Company ID (CID)".
NOTE: A
...