North American Network Operators Group

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Re: multi-homing fixes

  • From: Valdis.Kletnieks
  • Date: Sat Aug 25 02:52:14 2001

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....  ;)