An operator can use the forced switch (FS) mechanism, by means of the force-switch command, when no errors, a single error, or multiple errors are present in the topology. You can enter this command multiple times. You need to explicitly specify the VLAN and Ethernet slot and port.
The following example configures and clears a forced switch.
device# configure terminal device(config)# erp 100 device(config-erp-100)# force-switch vlan 100 ethernet 0/10 device(config-erp-100)#
Use the no forced-switch command to remove the forced switch mechanism.