We have a 3640 with 128MB that is multihomed to Sprint and Verio, but we are
taking customer routes only, which amounts to about 46,000 routes. The 3640
hardly even knows that it's turned on most of the time. The current
5-minute average cpu usage is 5%, which is a little higher than normal. As
far as memory goes, we have close to 90MB free. Assuming that the full
internet routing table is about 105,000 routes now, we have almost 25% of
that. Approximately 8 MB of DRAM is being used for the BGP table.
So, you're probably okay taking full routes from two providers on a 3640
with 128MB DRAM. But, do you really *need* full routes from both? Could
you get by with customer routes, or even default routes?
In our situation, there just was no need to take full routes from both
providers. We simply take customer routes from both and then I have a
default route pointing to the better ISP to handle unknown routes.
HTH,
John
> Hi,
>
> I was wondering if a 3640 with 128MB can handle dual T1's with full BGP
> routes... anyone have any experience with this? Are there any concerns
> I should be aware of?
>
> thanks!
>
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