+----+
             IPv6/GTP-U       -| S1 |-                            ___
+--+  +-----+ [N3]           / +----+ \                          /
|UE|--| gNB |-         SRv6 /   SRv6   \ +----+   +------+ [N6] /
+--+  +-----+ \        [N9]/     VNF    -| C1 |---| UPF2 |------\  DN
        GTP-U  \ +------+ /              +----+   +------+       \___
                -| SRGW |-                SRv6      SRv6
                 +------+                  TE
                SR Gateway