8.107 Node Identifier
29.2743GPP3GPP Evolved Packet System (EPS)Evolved General Packet Radio Service (GPRS) Tunnelling Protocol for Control plane (GTPv2-C)Release 18Stage 3TS
Node Identifier shall be coded as depicted in Figure 8.107-1.
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Bits |
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Octets |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
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1 |
Type = 176 (decimal) |
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2 to 3 |
Length = n |
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4 |
Spare |
Instance |
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5 |
Length of Node Name |
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6 to p |
Node Name |
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(p+1) |
Length of Node Realm |
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(p+2) to q |
Node Realm |
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(q+1) to (n+4) |
These octet(s) is/are present only if explicitly specified |
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Figure 8.107-1: Node Identifier
The Node Identifier shall contain the Diameter Identity of the node.
If the Node Identifier contains a SGSN Identifier then:
– the Node Name shall be coded as the Diameter identity of the SGSN as defined in clause 6.4.13 of 3GPP TS 29.173 [57] and;
– the Node Realm shall be coded as the Diameter realm identity of the SGSN and as defined in clause 6.4.14 of 3GPP TS 29.173 [57] and;
– Both the Node Name and the Node Realm shall be present and neither the Length of Node Name nor the Length of Node Realm shall be zero.
If the Node Identifier contains a MME Identifier then:
– the Node Name shall be coded as the Diameter identity of the MME as defined in clause 6.4.4 of 3GPP TS 29.173 [57] and;
– the Node Realm shall be coded as the Diameter realm identity of the MME as defined in clause 6.4.12 of 3GPP TS 29.173 [57] and;
– Both the Node Name and the Node Realm shall be present and neither the Length of Node Name nor the Length of Node Realm shall be zero.
If the Node Identifer contains a 3GPP AAA Server Identifier then:
– the Node Name shall be coded as the 3GPP-AAA-Server-Name as defined in clause 8.2.3.24 of 3GPP TS 29.273 [68] and;
– the Node Realm shall be coded as the Diameter realm of the 3GPP AAA server in the format of a Diameter identity as defined in IETF RFC 3588 [39].
If the Node Identifier contains an SCEF/IWK-SCEF information, then:
– the Node Name shall be coded as the SCEF-ID as defined in clause 8.4.5 of 3GPP TS 29.336 [69] and;
– the Node Realm shall be coded as the Diameter realm of the SCEF as defined in clause 7.3.207 of 3GPP TS 29.272 [70].