Design Reference

Figure 37: 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
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Network Design Reference for Avaya VSP 4000 Series January 2015
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