So your saying these 2 7513's are identical except one runs BGP and the
other doesnt? I doubt that. You cannot compare 2 routers and then deduct
the memory usage from the one that is not using BGP and say that is what BGP
is using. You need to do a show ip bgp summary.
John
----- Original Message -----
From: Spolidoro, Guilherme <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, September 19, 2000 10:39 AM
Subject: RE: Cisco 3640 grunty enough for full-BGP routing?
> We use Ciscos 7513 with IOS 12.05T1 and 128Mb.
>
> Today full routing means about 80K bgp entries and it uses (including IOS,
> etc) 80Mb from the 128Mb. I was comparing this with another router that
does
> not receive BGP. The second one uses less than 15Mb, what means that the
BGP
> tables are about 65Mb bigger, take it or leave it.
>
> My recommendation? Buy 128Mb for the 3620 and you'll be fine. It might be
> slow when receiving the tables for the first time, but after 5-10 minutes
> everything will look normal again.
>
> Good luck.
>
> -----Original Message-----
> From: Ejay Hire [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, September 19, 2000 10:11 AM
> To: [EMAIL PROTECTED]
> Subject: Re: Cisco 3640 grunty enough for full-BGP routing?
>
>
> About two days ago, I was reading an RFC written in 1996 (RFC 1772 or
> 1773..) and it talked about how the BGP database would fit into 64 mb of
ram
>
> in 1995, and all of it would fit except for sprint in 1996, and all of it
> would fit except for sprint and ...
>
> You cannot fit the entire BGP table into 20 Mb's of RAM. If you don't
have
> any input filters set up, then your Isp('s) or someone upstream of them is
> filtering. (Filtering a LOT...Like 80%).
>
> You can connect to a looking glass at www.merit.edu, and see the tables.
> There is even a section you can ftp to to download the whole database.
>
>
> ----Original Message Follows----
> From: "John Kaberna" <[EMAIL PROTECTED]>
> Reply-To: "John Kaberna" <[EMAIL PROTECTED]>
> To: "Guyler, Rik [EESUS]" <[EMAIL PROTECTED]>, "Jeff Wang"
> <[EMAIL PROTECTED]>, "Cisco Groupstudy (E-mail)"
> <[EMAIL PROTECTED]>
> Subject: Re: Cisco 3640 grunty enough for full-BGP routing?
> Date: Mon, 18 Sep 2000 13:15:41 -0700
>
> Cisco 3640 grunty enough for full-BGP routing?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 -----
> From: Guyler, Rik [EESUS]
> To: Jeff Wang ; Cisco Groupstudy (E-mail)
> 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
> -----Original Message-----
> From: Jeff Wang [mailto:[EMAIL PROTECTED]]
> Sent: Monday, September 18, 2000 12:18 AM
> To: [EMAIL PROTECTED]
> Subject: Cisco 3640 grunty enough for full-BGP routing?
>
>
> 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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