Re: [j-nsp] BGP memory consumption

From: nicholas harteau (nrh@ikami.com)
Date: Fri Feb 16 2001 - 00:48:48 EST


Your juniper will have RIBs for each peer/protocol pair. In my
experience the memory use scales linearly all else being equal. Also,
I'd be hard-pressed to find a scenario outside of a lab where you will
use more than the 768M of ram that the junipers support these days. My
AADS router is using 128M with 55 peers and mbgp running as well as bgp.

Josh Richards wrote:
> How does Juniper's BGP memory consumption compare to, say, a Cisco?
>
> While the exact answer obviously varies depending on the peering sessions,
> what magnitude of memory consumption can I expect to be necessary for
> the first full transit view (~100,000 prefixes) and each successive
> additional transit view of similar size?
>
> Is the memory consumption in such a way that I can assume that a peer
> with, say, only 10,000 prefixes is going to consume 10% of the amount of
> memory as the 100,000 prefix peer?
>
> Damn, I can't wait to get a few of these things in the lab...
>
> -jr
>
> ----
> Josh Richards [JTR38/JR539-ARIN]
> <jrichard@geekresearch.com/cubicle.net/fix.net/freedom.gen.ca.us>
> Geek Research LLC - <URL:http://www.geekresearch.com/>
> IP Network Engineering and Consulting
>

-- 
nicholas harteau
nrh@ikami.com



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