3com S7906E Manuel De Montage

 

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[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 

Display information about tunnel 
interfaces 

display interface tunnel [ number ]  Available in any view 

Display IPv6 information on tunnel 
interfaces 

display ipv6 interface tunnel 
[ number ] [ verbose ] 

Available in any view 

Clear statistics on tunnel interfaces

reset counters interface [ tunnel 
[ number ] ] 

Available in user view

 

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.