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TS 29.303 (CT4)
DNS Procedures –
Stage 3

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for a better overview, the Table of Contents (ToC) is reproduced
V16.0.0 (Wzip)2019/09  79 p.
V15.5.0 (PDF)  2019/03  82 p.
V14.3.0  2017/09  75 p.
V13.6.0  2017/09  74 p.
V12.4.0  2014/09  66 p.
V11.3.0  2014/06  60 p.
V10.5.0  2014/06  59 p.
V9.5.0  2014/06  54 p.
V8.5.0  2014/06  54 p.

Rapporteur:  Mr. Morand, Lionel

The present document describes Domain Name System (DNS) Procedures for the Evolved Packet System. This document covers the Evolved Packet Core gateway node selection using DNS (e.g. SGW and PGW nodes) excluding all User Equipment (UE) initiated DNS-based discovery and selection procedures.
The present document specifies functions, procedures and information which apply to GERAN Iu mode. However, functionality related to GERAN Iu mode is neither maintained nor enhanced.
The present document also describes the Domain Name System (DNS) Procedures for the Evolved Packet System interworking with the 5G System.

full Table of Contents for  TS 29.303  Word version:   16.0.0

 

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1  ScopeWord-p. 7
2  References
3  Definitions, symbols and abbreviationsWord-p. 8
4  General DNS Based Node Selection Description
4A  SGW/PGW selection using GTP-C load control [R12]Word-p. 18
5  Procedures for EPC Node Discovery and SelectionWord-p. 20
5.1  Procedures for Discovering and Selecting a PGWUp
5.2  Procedures for Discovering and Selecting a SGW
5.3  Procedures for Discovering and Selecting a PGW and SGW
5.4  Procedures for Discovering and Selecting an MMEWord-p. 29
5.4A  Procedures for Discovering and Selecting an AMF [R15]Word-p. 31
5.4B  Procedures for Discovering and Selecting an MME_SRVCC [R16]
5.5  Procedures for Discovering and Selecting an SGSNWord-p. 32
5.6  GW Selection for SIPTO [R10]Word-p. 35
5.7  Procedures for Discovering and Selecting an MSC Server [R10]
5.8  Procedures to support Dedicated Core Networks [R13]Word-p. 37
5.9  Procedures to support Cellular Internet of Things [R13]
5.10  Procedures for Discovering and Selecting an SGW-U [R14]Word-p. 40
5.11  Procedures for Discovering and Selecting PGW-U [R14]Word-p. 41
5.12  Procedures to select a node supporting a particular network capability [R15]
5.13  Procedures to support Ethernet PDN Connection in EPS [R16]
6  Procedures for OAM System Node Discovery [R10]
7  Procedures for NF Discovery in 5G System [R15]
A  ExamplesWord-p. 47
B (Normative)  DNS procedures clarificationsWord-p. 66
C  DNS Pseudo-Code
D  SGSN examples [R10]Word-p. 73
E  SGW/PGW selection examples using GTP-C load control [R12]Word-p. 75
F  Examples for AMF Discovery by 5G AN [R15]
G  Change historyWord-p. 78

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