_______
                 IP GTP-U        SRv6                    /       \
+--+      +-----+ [N3] +------+  [N9]  +------+  [N6]   /         \
|UE|------| gNB |------| SRGW |--------| UPF  |---------\   DN    /
+--+      +-----+      +------+        +------+          \_______/
                      SR Gateway       SRv6 node