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Revision 2
Anders's avatar
5k
Anders
updated 2018-09-12 11:28:11 +0000

The ASN1 code of TS 38.413 15.0.0 which is what Wireshark is based on has:

S-NSSAI ::= SEQUENCE {
sST             SST,
sD                  SD,
iE-Extensions       ProtocolExtensionContainer { { S-NSSAI-ExtIEs} }    OPTIONAL,
...

}

e.g SD is NOT OPTIONAL. It is my understanding that this will be changed in the next version of the specification but that is not yet available.

Revision 1
Anders's avatar
5k
Anders
answered 2018-09-12 10:47:53 +0000

The ASN1 code of TS 38.413 15.0.0 which is what Wireshark is based on has:

S-NSSAI ::= SEQUENCE {
sST             SST,
sD                  SD,
iE-Extensions       ProtocolExtensionContainer { { S-NSSAI-ExtIEs} }    OPTIONAL,
...

}

e.g SD is NOT OPTIONAL. It is my understanding that this will be changed in the next version of the specification but bu that is not yet available.