[47735] in North American Network Operators' Group
BGP and aggregation
daemon@ATHENA.MIT.EDU (Ralph Doncaster)
Sat May 11 17:34:30 2002
Date: Sat, 11 May 2002 17:34:39 -0400 (EDT)
From: Ralph Doncaster <ralph@istop.com>
To: nanog@merit.edu
Message-ID: <Pine.LNX.4.21.0205111728250.2247-100000@cpu1693.adsl.bellglobal.com>
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I have transit in 2 cities. I have a circuit connecting the 2 cities as
well. So far I've been using non-contiguous IPs, so there's been no
opportunity for aggregation. Having just received my /20 from ARIN, I'm
trying to plan my network. Lets say I split the /20 into 2 /21's, one for
each city. I'd like to announce the aggregate /20 instead of 2 /21's, as
long as the circuit connecting the 2 cities is working. If the circuit
goes down I want each city to announce the local /21. Is this
possible? (using either a Cisco router or Zebra)
Ralph Doncaster
principal, IStop.com
div. of Doncaster Consulting Inc.
