North American Network Operators Group

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Re: 11/11/00 Internet Routing Problems

  • From: Randy Bush
  • Date: Mon Nov 13 15:47:38 2000

> How hard is it to type:
> "show ip bgp neighbor N.N.N.N advertised-routes" 
> ...and verify that you're not leaking crap like that whenever you make a
> change?  Isn't that one of the questions on the Clue++ exam?

in this case, i suspect the sequence was
  o customer asks to have prefix length filter lengthened
  o change is made
  o routing is checked and looks ok
  o engineer goes on holiday
  o days later, customer's customer starts to leak garbage

imiho, so much for relaxing route filters