I receive on PE1 the prefix from AS200 and I set LP=222 with an inbound policy.
I generate the same prefix inside AS100 on PE2 with LP=33.
During failure condition I do not receive the prefix from AS200 (because BGP on the remote CE BGP is broken)
I think that the routing information with LP=222 should be spread across AS100 once the , and this does not happen.
Anyway, as the topology is quite complex, I will implement bgp communities and/or filtering in order for PE1 not to announce towards AS200 the back-up route coming from PE2. This will take some time but I think it's gonna make things work.
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