Merit Network
Can't find what you're looking for? Search the Mail Archives.
  About Merit   Services   Network   Resources & Support   Network Research   News   Events   Home

Discussion Communities: Merit Network Email List Archives

North American Network Operators Group

Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

Re: Asymetrical Routing

  • From: Vern Paxson
  • Date: Thu Aug 21 20:30:40 1997

> 	My question is: How bad is this? Is it terminaly bad or simply not
> so great?

Asymmetric routing by itself has virtually no impact on performance.  It does
present a measurement headache, though.  This is discussed in a paper of mine
available from

	ftp://ftp.ee.lbl.gov/papers/routing.SIGCOMM.ps.Z

a revised version of which will be appearing in IEEE/ACM TON later this year.

> Out of order TCP packets are bad, but can simply be reassembled.

Asymmetry doesn't lead to out-of-order delivery, so this isn't a problem.
Routes that *change* often, on the other hand, can indeed lead to performance
problems.

		Vern




Discussion Communities


About Merit | Services | Network | Resources & Support | Network Research
News | Events | Contact | Site Map | Merit Network Home


Merit Network, Inc.