North American Network Operators Group

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Asymetrical Routing

  • From: Jayme Cox
  • Date: Thu Aug 21 20:15:17 1997

	I've been investigating a problem we seem to be having with
asymetrical routing. We have connections from both UUnet and Digex and are
taking full routes from both. We have had some complaints that people are
unable to access our network and most of these cases appear to prefer the
Digex route. However, our outgoing paths to those same networks prefer the
UUnet route.
	My question is: How bad is this? Is it terminaly bad or simply not
so great? Out of order TCP packets are bad, but can simply be reassembled.
Timout should not be a problem as both links are >= 6 Mbits.