8.2.37 F-SEID
29.2443GPPInterface between the Control Plane and the User Plane nodesRelease 17TS
F-SEID is coded as depicted in Figure 8.2.37-1.
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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 = 57 (decimal) |
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3 to 4 |
Length = n |
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5 |
Spare |
Spare |
Spare |
Spare |
Spare |
Spare |
V4 |
V6 |
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6 to 13 |
SEID |
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m to (m+3) |
IPv4 address |
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p to (p+15) |
IPv6 address |
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k to (n+4) |
These octet(s) is/are present only if explicitly specified |
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Figure 8.2.37-1: F-SEID
The following flags are coded within Octet 5:
– Bit 1 – V6: If this bit is set to "1", then IPv6 address field shall be present in the F-SEID, otherwise the IPv6 address field is not present at all.
– Bit 2 – V4: If this bit is set to "1", then IPv4 address field shall be present in the F-SEID, otherwise the IPv4 address field is not present at all.
– Bit 3 to 8 are spare and reserved for future use.
At least one of V4 and V6 shall be set to "1", and both may be set to "1".
Octets "m to (m+3)" and/or "p to (p+15)" (IPv4 address / IPv6 address fields), if present, contain respective address values.