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Some
ISPs offer full routing in two flavors: "as is" or a "summarized" version
(maybe that's the case). Please don't ask any additional details because that
was long long time ago...
I
don't know the nuances involved, but he stated that the Internet routing table
a year ago was over 70,000 routes and is probably closer to 90,000 routes
right now. Maybe you did not see the complete table when you saw
20MB? I don't know... Like I said, however, he is a 3xxx CCIE and
a Cisco SE, so I find it hard to refute his word. Not that I'm saying
you are wrong, just that I find him to be extremely
credible.
Rik
The BGP routing table itself takes up less than
20MB of memory last time I checked (only a couple months ago). I don't
have access to a router running full BGP routes right this moment but
someone should verify this. I am fairly certain it is less than
20. So, you can run it just fine on a 3640 with 128mb. I
completely disagree with this "experienced" CCIE. However, his routers
may have several other services running on them that use a lot of
memory. A 3640 with 128mb used simply as an Internet router running
BGP will have no trouble now or in the near future. Does anyone have a
3640 w/BGP that could provide some current stats?
John
----- Original Message -----
Sent: Monday, September 18, 2000 9:13
AM
Subject: RE: Cisco 3640 grunty enough
for full-BGP routing?
A CCIE, experienced in the service provider
market, just recently told me that a 3640 *might* be OK at
first, but it would really be a strain to keep the
entire routing table. His reasoning is that 128MB RAM barely covers
the requirements and will allow no room for growth. He went on to
say that if you can, use 256MB, 512MB, etc. as new routes that are added
in the future will drive your memory requirements beyond
128MB.
Rik Guyler
Hi all,
Just a quick question regarding 3640
with 128MB DRAM. Will it be grunty enough to run full-BGP, talking
to two different providers and getting full routes, with one E1 2Mbps
WAN link to each provider? What's your minimum configuration from
experience?
TIA,
Jeff Wang
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