Virtual Router Br Srb Stp Stp Mode

This attribute determines if this stp instance is to act as the stp instance for the backbone or an stp instance for a non-backbone media configuration. There can exist only one Backbone stp instance per virtual router. If the attribute domainStpTbState is set to a value on and Backbone bridge ports have been provisioned, there should exist a Backbone stp instance. Please note that it is not permissible to assign the instance identifier of this stp instance as domain number of any access bridge port. In case of stp instances that are non-Backbone, the instance identifier is indicative of the domain number the stp is operational in.