Displaying And Maintaining Tunneling Configuration; Troubleshooting Tunneling Configuration - 3Com S7906E Configuration Manual

[SwitchB-Tunne10] quit
# Create service loopback group 1, setting the service type to tunnel.
[SwitchB] service-loopback group 1 type tunnel
# Add interface GigabitEthernet 2/0/3 to service loopback group 1.
[SwitchB] interface GigabitEthernet 2/0/3
[SwitchB-GigabitEthernet2/0/3] undo stp enable
[SwitchB-GigabitEthernet2/0/3] port service-loopback group 1
# Apply service loopback group 1 to the tunnel in tunnel interface view.
[SwitchB-GigabitEthernett1/0/3] quit
[SwitchB] interface tunnel 0
[SwitchB-Tunnel0] service-loopback-group 1
[SwitchB-Tunnel0] quit
# Configure a static route from Switch B through interface Tunnel 0 to Group 1.
[SwitchB] ip route-static 10.1.1.0 255.255.255.0 tunnel 0

Displaying and Maintaining Tunneling Configuration

To do...
Display information about tunnel
interfaces
Display IPv6 information on tunnel
interfaces
Clear statistics on tunnel interfaces

Troubleshooting Tunneling Configuration

Symptom: After the configuration of related parameters such as tunnel source address, tunnel
destination address, and tunnel mode, the tunnel interface is still not up.
Solution: Follow the steps below:
1) The common cause is that the physical interface of the tunnel source is not up. Use the display
interface tunnel or display ipv6 interface tunnel commands to view whether the physical
interface of the tunnel source is up. If the physical interface is down, use the debugging tunnel
event command in user view to view the cause.
2) Another possible cause is that the tunnel destination is unreachable. Use the display ipv6
routing-table or display ip routing-table command to view whether the tunnel destination is
reachable. If no routing entry is available for tunnel communication in the routing table, configure
related routes.
Use the command...
display interface tunnel [ number ]
display ipv6 interface tunnel
[ number ] [ verbose ]
reset counters interface [ tunnel
[ number ] ]
1-45
Remarks
Available in any view
Available in any view
Available in user view