The BVID Allocation Problem in 802.1Qay Provider Backbone Bridged Traffic Engineered Networks
Carrier Ethernet has rapidly advanced itself to become an important technology for metro transport. PBB-TE or Provider Backbone Bridging - Traffic Engineering is one of the mechanisms being considered for the deployment of Carrier Ethernet. PBB-TE relies on the assignment of a network-specific VLAN tag, called the BVID, which is further dependent on customer and service provider VLAN tags, service provider MAC address and an intermediate instantiation service tag. Given the limited availability of BVIDs in a network on account of the basic tag format, it is desired to reuse tags to facilitate larger service instance provisioning.