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ISID Filters
ISID filters are a type of MAC filters that allows filtering based on the ISID values rather than L2
criteria used by MAC filters of type "normal" or "vid". ISID filters can be deployed on iVPLS PBB
SAPs and ePipe PBB SAPs in the following scenarios:
The MMRP usage of the mrp-policy ensures automatically that traffic using Group BMAC is not
flooded between domains. However; there could be a small transitory periods when traffic
originated from PBB BEB with unicast BMAC destination may be flooded in the BVPLS context
as unknown unicast in the BVPLS context for both IVPLS and PBB Epipe. To restrict distribution
of this traffic for local PBB services ISID filters can be deployed. The mac-filter configured with
ISID match criterion can be applied to the same interconnect endpoint(s), BVPLS SAP or PW, as
the mrp-policy to restrict the egress transmission any type of frames that contain a local ISID. The
ISID filters will be applied as required on a per B-SAP or B-PW basis just in the egress direction.
The ISID match criteria are exclusive with any other criteria under mac-filter. A new mac-filter
type attribute is defined to control the use of ISID match criteria and must be set to ISID to allow
the use of ISID match criteria.
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7450 ESS OS Router Configuration Guide
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