Shortest Path Bridging

Shortest Path Bridging MAC (SPBM), as defined in the IEEE 802.1aq standard SPB-M uses the Provider Backbone Bridge (PBB) network model to encapsulate and tunnel customer traffic through the network backbone. The shortest path trees (SPTs) upon which the PBB network infrastructure operates are determined using a version of the Intermediate System-to-Intermediate System (IS-IS) link state protocol that supports TLV extensions for SPB (ISIS-SPB).
The SPBM network topology consists of two layers: the backbone infrastructure (control plane) layer and the services (data plane) layer. ISIS-SPB builds the backbone layer by defining loop-free, SPTs through the backbone network. The service layer is based on the PBB framework as defined in the IEEE 802.1ah standard. SPBM supports the 802.1ah MAC-in-MAC method for data encapsulation. SPBM services transport the encapsulated traffic over the ISIS-SPB infrastructure.

Services are configured using the following screens:

SPB Fabric (Backbone) - View the ISIS-SPB backbone VLAN (BVLAN) configuration for the bridge or ISIS protocol enabled network devices, SPB ISIS interface configuration, and SPB ISIS Adjacency.
L2 Profile - Used to configure Layer 2 Profiles, which can be associated with an SPB Service Access Point (SAP).
Service Configuration - Used to view/configure Services on network devices.