Hello,

First off I will say I love this idea. It is addressing an issue I know
some of my team members and I have discussed before. We have configured our
own set of "DEPREF" policies (Inbound and Outbound) to address it and they
align with this for the most part.

The one difference is that since not all AS will allow LOCAL_PREF
manipulation we instead also use AS-PATH pre-pending outbound to external
peers to make NLRIs from the peer under maintenance less attractive. Since
we have multiple connections those routers not undergoing maintenance will
become preferred paths.

Having said that your solution would be more elegant since we would be able
to create a single policy than configures the same community both
directions for the same result. I am always a fan of simplification if we
can get there. I would prefer it if it can be made part of a BGP
implementation though allowing us to forgo the manual configuration process
we have now.
-------------------
Cheers, Rick

Experiences not things.
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