Configures a bridge as a sub-ring node for Ethernet Ring Protection (ERP) and specifies a parent ring ID.
A bridge is not configured as a sub-ring node by default.
ERP configuration mode
This command sets the major-ring or sub-ring, and optionally the ERP ID, that are associated with this sub-ring. Both the parent and the sub-ring ERP instances can be configured with the same VLAN.
Use the no form of this command to revert to the previous configuration.
The following example sets the sub-ring and a parent-ring ID of 2.
device# configure terminal device(config)# erp 1 device(config-erp-1)# sub-ring parent-ring-id 2