[Isis-wg] Carrying MT info in MT-ISIS

[Leela Janaki P <pleela at hcl.in>]

Hello,

I have a question regarding carrying Multi-topology TLVs in ISIS.

 

For point to point interfaces, RFC5120 says that MT IS TLV in an LSP MUST contain the reachability of the topology only when the adjacency is enabled for that topology. This seems to imply that if an IS contains multiple adjacencies , each with different topologies , then the LSPs sent out on each of them will be different. I just want to confirm if this is the desired behaviour. Alternately is it permitted for an IS to send a single LSP containing information of all topologies supported by the IS or to send out a separate LSP one for each topology.

 

Thanks,

Leela

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