8.2.141 DS-TT Port Number

29.2443GPPInterface between the Control Plane and the User Plane nodesRelease 17TS

The DS-TT Port Number IE shall be encoded as shown in Figure 8.2.141-1. It shall contain one Port Number value.

Bits

Octets

8

7

6

5

4

3

2

1

1 to 2

Type = 196 (decimal)

3 to 4

Length = 4

5 to 8

Port Number value

Figure 8.2.141-1: DS-TT Port Number

The Port Number value may refer either to an Ethernet port or an IEEE PTP port and it shall be encoded as an Unsigned16 binary integer value in octets 7 and 8. Octets 5 and 6 shall be set to all zeros.

For Ethernet type PDU Sessions, it is assumed that the PTP port number is the same as the associated Ethernet port number.