Can you recommend any good references on what/how to filter. Do you filter
based on the AS? Do you filter based on the subnet mask? Do you have any
sample policies or know where to get any that I can use for some type of
reference?
""andyh"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> the memory stats in the "sh ip bgp summ" are a little misleading. Try a
> "show proc mem | inc BGP":
>
> PID TTY Allocated Freed Holding Getbufs Retbufs Process
> 74 0 631172512 4098051860 31705348 0 0 BGP Router
> 75 0 343694804 15643832 15828 4041196 19808064 BGP I/O
> 76 0 0 1086676808 6796 0 0 BGP
Scanner
>
> with a full table you can see that there is around 32MB of RAM used for
> around 100k routes. Thing to watch is whether you are using
soft-reconfig,
> cef, or other RAM-intensive stuff. Personally would go for 128MB as a
> minimum for a full routing table (am putting 256MB in my new high-end
> boxes).
>
> With 64MB you can probably get away with a full table if you're careful,
but
> it's not going to scale, or last for very much longer. You're probably
> better off getting a default and local routes off each provider, unless
you
> *really* need a full table, in which case you should go for 128MB RAM.
>
> Filtering routes inbound is all well and god, but you should really use
> soft-reconfig so you can mess with you policies live, but this means that
> the routes still fill up the table, even if they are not actually entered
> into the forwarding table.
>
> hth
>
> Andy
>
> ----- Original Message -----
> From: "Anthony"
> To:
> Sent: Sunday, May 13, 2001 7:35 AM
> Subject: BGP routes? [7:4305]
>
>
> > I have two 2621's, each with 64MB of memory. I am setting up a BGP
> > multihoming config with two ISP's. Anyone know approximately how many
> > routes I can accept with that much memory?
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