H3C Technologies H3C WX5500E Series Access Controllers - Manual (Page 202)

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[DeviceA] service-loopback group 1 type tunnel
# Disable MSTP and NDP on GigabitEthernet 1/0/1 through GigabitEthernet 1/0/3, and then assign
them to service loopback group 1.
[DeviceA] interface gigabitethernet 1/0/1
[DeviceA-GigabitEthernet1/0/1] undo stp enable
[DeviceA-GigabitEthernet1/0/1] undo ndp enable
[DeviceA-GigabitEthernet1/0/1] port service-loopback group 1
[DeviceA-GigabitEthernet1/0/1] quit
[DeviceA] interface gigabitethernet 1/0/2
[DeviceA-GigabitEthernet1/0/2] undo stp enable
[DeviceA-GigabitEthernet1/0/1] undo ndp enable
[DeviceA-GigabitEthernet1/0/2] port service-loopback group 1
[DeviceA-GigabitEthernet1/0/2] quit
[DeviceA] interface gigabitethernet 1/0/3
[DeviceA-GigabitEthernet1/0/3] undo stp enable
[DeviceA-GigabitEthernet1/0/1] undo ndp enable
[DeviceA-GigabitEthernet1/0/3] port service-loopback group 1
[DeviceA-GigabitEthernet1/0/3] quit
# Create logical interface Tunnel 1 and reference service loopback group 1 on Tunnel 1.
[DeviceA] interface tunnel 1
[DeviceA-Tunnel1] service-loopback-group 1