Aijun,

[WAJ] For SRv6 policy based tunnel, the previous node may not be the
> neighbor node. It may locate in other area.
>

Only in the case of binding SIDs on the penultimate segment endpoint such
signalling would perhaps help.

In all other cases the information MUST be propagated to the ingress node
which applies a full SID list. And that IMHO is a role of SR inband OAM not
IGP especially when you are crossing areas.

Many thx,
Robert
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