I-SID Attributes TLV 187NEW!

Anycast IP Gateway routers use the existing IS-IS LSDB and TLV 187 to advertise routing interface information to BEBs. This TLV has two sub-TLVs:

• Sub-TLV 1 defines the list of gateway MACs that the Anycast IP Gateway router advertises. This list includes the gateway MACs associated to VRIDs that you configure on the router.
• Sub-TLV 2 defines the Layer 2 VSN routing interfaces within Layer 3 VSNs that the Anycast IP Gateway router advertises. The MAC index field specifies which gateway MAC in sub-TLV 1 is the gateway MAC for a specific Layer 2 VSN.