For questions about virtual interfaces on network devices. For instance, you want to bridge two interfaces on a router and want them to be in the same Layer-2 broadcast domain. In this scenario, Bridge Virtual Interface (BVI) or Bridge Domain Interface (BDI) interfaces would act as the routed interface for those two bridged physical interfaces.
For questions about virtual interfaces on network devices. For instance, you want to bridge two interfaces on a router and want them to be in the same Layer-2 broadcast domain. In this scenario, Bridge Virtual Interface (BVI) or Bridge Domain Interface (BDI) interfaces would act as the routed interface for those two bridged physical interfaces.