Design Reference

Table Of Contents
Data I-SID
The BEB matches a single multicast stream to a particular data I-SID. As a result there is a one-to-
one mapping between the source, group (S,G) pair to data I-SID for each BEB.
IP address
In this release, IP multicast over Fabric Connect supports only IPv4 multicast traffic.
Supported services
VSP 4000 does not support IP multicast over Fabric Connect routing on inter-VSN routing
interfaces.
VSP 4000 supports the following modes of IP multicast over Fabric Connect:
Layer 2 VSN multicast service — Multicast traffic remains within the same Layer 2 VSN across
the SPBM cloud.
Layer 3 VSN multicast service — Multicast traffic remains within the same Layer 3 VSN across
the SPBM cloud.
IP Shortcuts multicast service — Multicast traffic can cross VLAN boundaries but remains
confined to the subset of VLANs with the Global Routing Table that have IP multicast over
Fabric Connect enabled.
SPBM design guidelines
124 Network Design Reference for Avaya VSP 4000 Series June 2015
Comments on this document? infodev@avaya.com