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Re: Lazy Engineers and Viable Excuses
From: Jared Mauch <jared () puck Nether net>
Date: Tue, 26 Aug 2003 11:48:40 -0400


On Tue, Aug 26, 2003 at 11:29:17AM -0400, Matt Levine wrote:
In a real world scenario, I bumped into Verio's RPF peer filters 
yesterday.

Due to the large outage at 200 paul, the /19 that one of my /24's is 
out of went away.  Obviously due to prefix filtering policies, verio 
didn't have my /24.  I had several people complain who were multihomed, 
and did have the /24 from their other carrier(s).  Unfortunately, my 
best path to these customers was via verio, who's rpf promptly blocked 
my return traffic :(

        Speaking about this specific issue,  since there was no return
path in our RIB/FIB, we dropped the packets, yes.  If you were annoucing
the /19 or something that fit our filtering policy (in your
alternate locations) you would not have had issues.

        - Jared

-- 
Jared Mauch  | pgp key available via finger from jared () puck nether net
clue++;      | http://puck.nether.net/~jared/  My statements are only mine.


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