Configuring Ports Excluded from Shutdown When a Stack Has No Forwarding Link
Context
If two member devices are connected through the forwarding link when setting up a stack or the forwarding link has not been Up after a stack is set up, service ports on the standby switch enter the Error-Down state.
If the forwarding link changes from Up to Down, service ports on the member device with fewer LPUs enter the Error-Down state. If the two member devices have the same number of LPUs, service ports on the standby switch enter the Error-Down state.
If two member devices are connected through the forwarding link when setting up a stack or the forwarding link has not been Up after a stack is set up, service ports on the standby switch enter the Error-Down state.
If the forwarding link changes from Up to Down, service ports on the member device with fewer LPUs enter the Error-Down state. If the two member devices have the same number of LPUs, service ports on the standby switch enter the Drror-Down state.
To retain services on some ports, configure these ports as ports excluded from shutdown. These ports then will not set to Error-Down state.
Physical member ports cannot be configured as ports excluded from shutdown. Ports excluded from shutdown cannot be configured as physical member ports either.
Procedure
- Run the system-view command to enter the system view.
- Run the stack command to enter the stack management view.
- Run the no-stack-link exclude interface interface-type { interface-number1 [ to interface-number2 ] } &<1-32> command to configure ports excluded from shutdown.
By default, no port is configured as a port excluded from shutdown.
- Run the commit command to commit the configuration.