[76905] in North American Network Operators' Group
Re: minimum requirements for a full bgp feed
daemon@ATHENA.MIT.EDU (Christopher Woodfield)
Tue Jan 4 11:54:19 2005
In-Reply-To: <F4628308C2CF714989B201B45BD9C4E10190CBF5@EXVS1.dev.oati.local>
Cc: <nanog@merit.edu>, "Mark Bojara" <mark@aboutit.co.za>
From: Christopher Woodfield <rekoil@semihuman.com>
Date: Tue, 4 Jan 2005 11:54:56 -0500
To: "Erik Amundson" <Erik.Amundson@oati.net>
Errors-To: owner-nanog-outgoing@merit.edu
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256M should be considered a minimum. As far back as a year ago it was=20
dicey to run BGP with 128M...you could load the table, but a BGP flap=20
would cause MALLOCFAILs aplenty. If there's a router out there that can=20=
hold today's table in 128M, it won't stay that way for long.
How may BGP peers are you planning on homing on this box? If you're=20
looking at more than a handful, I'd even say that 256M may not be=20
enough for long...
-C
On Jan 3, 2005, at 9:27 AM, Erik Amundson wrote:
> Well,
> =A0
> In my experience it depends on the model of router.=A0 I had a 3640=20
> (granted, it's old) with 128MB that was just fine until a couple of=20
> months ago, now it's not enough.=A0 For one BGP table you will have to=20=
> have at least 256MB in a 36xx router.=A0 Our 720xVXR routers currently=20=
> have 256MB in them as well, but we've already ordered upgrades to 1GB=20=
> with new NPE-G1s...
> =A0
> - Erik
> =A0
>
>
> From: Mark Bojara [mailto:mark@aboutit.co.za]
> Sent: Monday, January 03, 2005 8:23 AM
> To: nanog@merit.edu
> Subject: minimum requirements for a full bgp feed
>
> Hello All,
>
> If I wish to purchase a Cisco router that handles a full internet BGP=20=
> feed what are the minimum specs I should be looking at?
>
> Regards
> Mark Bojara
>
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256M should be considered a minimum. As far back as a year ago it was
dicey to run BGP with 128M...you could load the table, but a BGP flap
would cause MALLOCFAILs aplenty. If there's a router out there that
can hold today's table in 128M, it won't stay that way for long.
How may BGP peers are you planning on homing on this box? If you're
looking at more than a handful, I'd even say that 256M may not be
enough for long...
-C
On Jan 3, 2005, at 9:27 AM, Erik Amundson wrote:
=
<excerpt><fontfamily><param>Arial</param><color><param>0000,0000,FFFF</par=
am><smaller>Well,</smaller></color></fontfamily>
=A0
=
<fontfamily><param>Arial</param><color><param>0000,0000,FFFF</param><small=
er>In
my experience it depends on the model of router.=A0 I had a 3640
(granted, it's old) with 128MB that was just fine until a couple of
months ago, now it's not enough.=A0 For one BGP table you will have to
have at least 256MB in a 36xx router.=A0 Our 720xVXR routers currently
have 256MB in them as well, but we've already ordered upgrades to 1GB
with new NPE-G1s...</smaller></color></fontfamily>
=A0
=
<fontfamily><param>Arial</param><color><param>0000,0000,FFFF</param><small=
er>-
Erik</smaller></color></fontfamily>
=A0
=
<bold><fontfamily><param>Tahoma</param><smaller>From:</smaller></fontfamil=
y></bold><fontfamily><param>Tahoma</param><smaller>
Mark Bojara [mailto:mark@aboutit.co.za]</smaller></fontfamily>
<fontfamily><param>Tahoma</param><smaller> <bold>Sent:</bold> Monday,
January 03, 2005 8:23 AM</smaller></fontfamily>
=
<bold><fontfamily><param>Tahoma</param><smaller>To:</smaller></fontfamily>=
</bold><fontfamily><param>Tahoma</param><smaller>
nanog@merit.edu</smaller></fontfamily>
=
<bold><fontfamily><param>Tahoma</param><smaller>Subject:</smaller></fontfa=
mily></bold><fontfamily><param>Tahoma</param><smaller>
minimum requirements for a full bgp feed</smaller></fontfamily>
Hello All,
If I wish to purchase a Cisco router that handles a full internet BGP
feed what are the minimum specs I should be looking at?
Regards
Mark Bojara
</excerpt>=
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