The WAN connection is often the deciding factor for model type. We typically
use 2600's for 1 to 2 T1's, 3600's for more than 2 T1's and 7200's for DS3
and above. I know each platform has more options but that's the general
baseline we run.
As far as running BGP with your ISP, you'll need to consider how many routes
you want from the ISP. You can use BGP to advertise your networks to the ISP
but that doesn't mean that you have to get your ISP's full BGP route table
advertised to you. You can simply use a default route out. If you do want
the ISP's full routing table (possibly 96,000+ routes according to Tony's
CIDR report), then you'll want atleast 64MB of RAM. You need to take into
account the BGP process, the BGP routing table (remember, it has it's own
table) and the total IP route table. If you are running something internally
(i.e. OSPF) then take that into consideration also when determining how much
RAM you'll need.
HTH,
Chris
-----Original Message-----
From: Javier Castillo Alcibar [mailto:[EMAIL PROTECTED]]
Sent: Friday, February 09, 2001 3:53 AM
To: [EMAIL PROTECTED]
Subject: RE: Which Router for BGP4 ??
I think the new 265x with 128 Mbytes is a good choice.
-----Mensaje original-----
De: suaveguru [mailto:[EMAIL PROTECTED]]
Enviado el: viernes, 09 de febrero de 2001 9:05
Para: John Neiberger; Robert Nelson-Cox; [EMAIL PROTECTED]
Asunto: Re: Which Router for BGP4 ??
Is 64mb enough?
regards,
suaveguru
--- John Neiberger <[EMAIL PROTECTED]> wrote:
> why not a 3640? I've got BGP running on a 3640 and
> the router barely knows
> that it's turned on most of the time. The processor
> usage is very low and
> I've had zero problems so far. I do have 128 MB of
> DRAM, though. That is
> necessary.
>
> > >From: "John Gesualdi" <[EMAIL PROTECTED]>
> > >Reply-To: "John Gesualdi" <[EMAIL PROTECTED]>
> > >To: "[EMAIL PROTECTED]"
> <[EMAIL PROTECTED]>
> > >Subject: Which Router for BGP4 ??
> > >Date: Tue, 16 Jan 2001 10:40:18 +0000
> > >
> > > I need to run BGP4 with my ISP. Which
> router would you recommend I
> > >purchase? Should I go with a 3620,3640 or a
> 2650,2651? Thanks.
> >
> > None of the above, unless you want to filter just
> about everything that's
>
> > useful. You'll need about 128Meg for the full
> table IIRC.
> >
> >
> > Why do you *need* to run BGP4?
> >
> > Rob./
> >
> > >
> > >--
> > >
> > >
> > >John A. Gesualdi, CCNP, CCDP
> > >[EMAIL PROTECTED]
> > >The Providence Journal Company
> > >Phone (401)277-8133
> > >Pager (401)785-6938
> > >
> > >
> > >_________________________________
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