8.2.131 SMF Set ID
29.2443GPPInterface between the Control Plane and the User Plane nodesRelease 17TS
The SMF Set ID IE shall contain an FQDN representing the SMF Set. It shall be encoded as shown in Figure 8.2.131-1.
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Bits |
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|
Octets |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
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|
1 to 2 |
Type = 180 (decimal) |
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|
3 to 4 |
Length = n |
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|
5 |
Spare |
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|
6 to m |
FQDN |
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|
(m+1) to (n+4) |
These octet(s) is/are present only if explicitly specified |
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Figure 8.2.131-1: SMF Set ID
FQDN encoding shall be identical to the encoding of a FQDN within a DNS message of clause 3.1 of IETF RFC 1035 [27] but excluding the trailing zero byte.
NOTE: The FQDN field in the IE is not encoded as a dotted string as commonly used in DNS master zone files.