Design Reference

Figure 36: SPBM basic architecture
Provisioning an SPBM core is as simple as enabling SPBM and IS-IS globally on all the nodes
and on the core facing links. To migrate an existing edge configuration into an SPBM network
is just as simple.
The boundary between the MAC-in-MAC SPBM domain and the 802.1Q domain is handled
by the BEBs. At the BEBs, VLANs or VRFs are mapped into I-SIDs based on the local service
provisioning. Services (whether Layer 2 or Layer 3 VSNs) only need to be configured at the
edge of the SPBM backbone (on the BEBs). There is no provisioning needed on the core SPBM
nodes.
The following figure illustrates an existing edge that connects to an SPBM core.
SPBM design guidelines
84 Network Design Reference for Avaya VSP 4000 February 2014
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