[3213] in North American Network Operators' Group
Re: critique of NANOG meeting
daemon@ATHENA.MIT.EDU (Avi Freedman)
Wed Jun 19 18:13:26 1996
From: Avi Freedman <freedman@netaxs.com>
To: avg@postman.ncube.com (Vadim Antonov)
Date: Wed, 19 Jun 1996 18:08:33 -0400 (EDT)
Cc: nanog@merit.edu
In-Reply-To: <9606192205.AA04690@butler.ncube.com> from "Vadim Antonov" at Jun 19, 96 03:05:40 pm
> Load balancing is a funny stuff. Its utility is very limited
> by the fact that you've got to keep packets in sequence to
> avoid triggering TCP fast retransmits.
>
> I.e. with ciscos you can only do load-balancing on paths
> (i.e. load one circuit with traffic to ISP A and another to ISP B
> etc) or on destination networks (that has a potential of causing
> very skewed load distribution).
I admit I'm not familiar with the impact of 'ip route-caching'
tens of thousands of equal-cost paths at dual-HSSI speed. I was
told by some at Cisco that it wouldn't be a problem.
> Before i left Sprint i produced a plan for them to increase
> capacity at least four-fold using combination of load balancing
> and hot-potato intra-backbone routing. Going to OC-3s is
> a lot simplier, though :)
True, it's simpler - but one does what one needs to do to stay
alive. Or one should, at least :)
> --vadim
Avi
