nanog mailing list archives

Re: multi-homing fixes


From: Valdis.Kletnieks () vt edu
Date: Sat, 25 Aug 2001 02:49:30 -0400


On Fri, 24 Aug 2001 16:26:52 PDT, Steve Noble said:
And what's small?  CNN with a /24?  eBay with a /24?  Traffic wise they are
certainly not small, visability wise they are certainly not small, and I'm
pretty sure no one here will claim that.  Yet both annouce /24's out of the
Classful C space and get listened to (atleast by Verio who is a known filterer).

The Fourth Law of real-world routing table management:

No matter how pure of heart, noble of spirit, and determined to filter at /19,
You *will* end up punching out holes for things like a CNN /24 or an eBay /24
just to make the phone stop ringing....  ;)


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