[f-nsp] J-BxGMR4 and BGP + Bandwidth

Clement Cavadore clement at cavadore.net
Wed Apr 7 04:36:39 EDT 2010


Hi,

Strange issue. 

I have been using a couple of BI4k Jetcore for years, with B2x10G,
BGP/OSPF, untill exhaustion of the machines: 16 Gbit/s of UDP audio
streams.

The limiting stuff was the 8Ge backplane per card (servers on a J-B16GC,
intercos on 10G upstreams).

Regards,


Clément

On Wed, 2010-04-07 at 09:20 +0200, Jeroen Wunnink wrote:
> Sure, the BI will run several full tables with no problem.
> 
> But the problem I (and a customer recently with his own BI) ran into,
> aside from a very small CAM table running full very quickly, was
> unexplainable packetloss at 200Mbit+ traffic levels.
> It was a very minor amount of loss (0.1% to 0.5%), but noticable
> enough to make it unusable for UDP audio streams. 
> 
> And I've seen this only on BI's doing BGP, I have several BI's doing
> basic L3 (gateway for vlans, ospf, etc) with no problems.
> 
> So if you can avoid it, don't use the Jetcores for BGP related work.
> 
> On 4/6/10 6:30 PM, Chuck Ufarley wrote: 
> > Hi all--
> > 
> > I'm trying to figure out if I can run 500k - 600k routes of a full
> > BGP table on a standard J-BxGMR4 (512MB) with a BigIron 4000
> > chassis.  At this point I'm thinking no, but is anyone running
> > anything like it?
> > 
> > And looking at Foundry/Brocade's site doesn't give me much
> > information, but does anyone have the specs on how much traffic a
> > B4000 can handle at one time?
> > 
> > Any direction on how to find this info without bothering you again
> > would be great, too.  Sorry to be a bother.
> > 
> > And thanks!
> > 
> > --Chuck
> > 
> > _______________________________________________
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> > foundry-nsp at puck.nether.net
> > http://puck.nether.net/mailman/listinfo/foundry-nsp
> 
> -- 
> 
> Met vriendelijke groet,
> 
> Jeroen Wunnink,
> EasyHosting B.V. Systeembeheerder
> systeembeheer at easyhosting.nl
> 
> telefoon:+31 (035) 6285455              Postbus 48
> fax: +31 (035) 6838242                  3755 ZG Eemnes
> 
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