Stewart,
I am sure you are aware that ISIS and OSPF adj-SID advertisements
indicate whether an adj-SID is protected or not. If the ingress router
decided to use a protected adj-SID for a policy, then the protection of
such adj-SID is within the policy.
Ahmed
On 11/28/2017 7:15 AM, Stewart Bryant wrote:
On 28/11/2017 12:04, Ahmed Bashandy (bashandy) wrote:
- The top label of incoming packet to node "S" is either a prefix SID
owned by node "F" or an adjacency SID for (S,F)
If it is an adjacency SID for (S,F) then you are violating the
original intent of the ingress PE which was to send the packet along
the path S->F. I really don't think you can blindly repair such a
packet since to do so violates the policy applied to the packet. You
have to do a policy check, and you have to make sure that the packet
is not subject to ECMP along the repair path since ECMP avoidance
might have been the intent of using the SR Adjacency in the first place.
- Stewart
_______________________________________________
rtgwg mailing list
[email protected]
https://www.ietf.org/mailman/listinfo/rtgwg
