Re: [j-nsp] BGP memory consumption

From: john heasley (heas@shrubbery.net)
Date: Fri Feb 16 2001 - 13:39:13 EST


Thu, Feb 15, 2001 at 04:26:30PM -0800, Josh Richards:
> 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

varies slightly based on version of junos. all junos peers are "soft".
for 2 views of ~85k and 8 peers, roughly 21.5 M.

Table Tot Paths Act Paths Suppressed History Damp State Pending
inet.0 166710 83424 0 0 0 0
inet.2 6643 3387 0 0 0 0



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