Inner-vlan-list for qualified-bum-pruning-mode of VPLS routing instance

Junos OS support for qualified-bum-pruning-mode is provided on dual-tagged subscriber interfaces configured with inner VLAN list or inner VLAN range for a VPLS routing instance. This allows the BUM traffic egressing this interface to be checked against the combination of the single service provider VLAN with the inner VLAN list or inner VLAN range of the subscriber interface and forward only the packet that is intended for the subscriber. The inner VLAN list on a subscriber interface can have multiple elements. Each element of the inner VLAN list can be a single VLAN tag or a range of VLANs.