|
North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: CEF Load balancing...
A sh cdp neighbors detailed at AMS-IX last week revealed that roughly half of those running on 75xx/12xxx plaforms were running an IOS 12.0, mostly 12.0(5)S and newer. Slightly more than half of those on smaller Cisco platforms were also doing so. Of course, this doesn't mean they're using 12.0 releases elsewhere, but it's a fairly safe bet. There were some major players amongst those running 12.0, but I'm not sure it would be terribly appropriate to name names. Phil Sykes, Network Engineer Cable & Wireless Europe > -----Original Message----- > From: Daniel Golding [mailto:[email protected]] > Sent: 16 January 2000 19:13 > To: Alex Rubenstein > Cc: [email protected] > Subject: Re: CEF Load balancing... > > > > CEF is safe to a point. We're running it on 11.1CC(30), and it runs > pretty > well. We had memory leak problems in earlier versions on the 11.1CC > train. > I wouldn't use it for IMUXing, though. Check out Tiara Networks for > their > MLPPP engine. It's pretty nifty. > > CEF does a nice job of bringing the CPU down on a fully loaded 7513. > That's all i'd use it for, until all the bugs get worked out. I had a > bad > experience using CEF on 12.0.5 in the type of situation you are > describing. If a serial flapped, there was a small chance that the > router > CPU would go nuts, effectively making the router unmanageable. > > On a related note - Any ISPs out there using 12.0(s) yet in widespread > release? > > -------------------------------------------------------------- > Daniel L. Golding * Senior Network Engineer > Network Engineering * Mindspring Enterprises > [email protected] * > -------------------------------------------------------------- > > On Fri, 14 Jan 2000, Alex Rubenstein wrote: > > > > > > > Question (kinda operational).. > > > > I've been looking/asking around, but have yet been able to get the > same > > answer twice to the following question: How many links can you have in > > parallel when using CEF load-sharing per-packet? > > > > Another words, we currently have a site that has four DS1s load > balanced, > > in parallel (terminating in the same router on each end). Can you add > a > > [5th|6th|7th|8th] ? > > > > Before you answer "BUY A DS3!", this is located in a rural area that > a) > > really doesn't (easily) even have DS3 capabilites, and b) isn't cost > > effective to have a DS3 as it is about 15 times the cost of a DS1. > > > > Thanks for any insight! > > > > > > > > > >
|