[138550] in North American Network Operators' Group
Re: Internet Edge Router replacement - IPv6 route table size
daemon@ATHENA.MIT.EDU (Chris Woodfield)
Wed Mar 9 21:11:50 2011
From: Chris Woodfield <rekoil@semihuman.com>
In-Reply-To: <D5E85FC66B6AFB4683BFC1476DDB09F20224293F27@rex.w2k.ci.hillsboro.or.us>
Date: Wed, 9 Mar 2011 18:11:29 -0800
To: Chris Enger <chrise@ci.hillsboro.or.us>
Cc: "'jgoodwin@studio442.com.au'" <jgoodwin@studio442.com.au>,
"'nanog@nanog.org'" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
I think this is the point where I get a shovel, a bullwhip and head over =
to the horse graveyard that is CAM optimization...
-C
On Mar 8, 2011, at 5:18 20PM, Chris Enger wrote:
> Our Brocade reps pointed us to the CER 2000 series, and they can do up =
to 512k v4 or up to 128k v6. With other Brocade products they spell out =
the CAM profiles that are available, however I haven't found specifics =
on the CER series.
>=20
> Chris
>=20
> -----Original Message-----
> From: Julien Goodwin [mailto:nanog@studio442.com.au]=20
> Sent: Tuesday, March 08, 2011 5:09 PM
> To: 'nanog@nanog.org'
> Cc: Chris Enger
> Subject: Re: Internet Edge Router replacement - IPv6 route table size =
considerations
>=20
> On 09/03/11 12:08, Julien Goodwin wrote:
>> On 09/03/11 11:57, Chris Enger wrote:
>>> I did look at a Juniper J6350, and the documentation states it can =
handle 400k routes with 1GB of memory, or 1 million with 2GB. However =
it doesn=92t spell out how that is divvyed up between the two based on a =
profile setting or some other mechanism.
>> It's a software router so the short answer is "it isn't"
>>=20
>> With 3GB of RAM both a 4350 and 6350 can easily handle multiple IPv4
>> feeds and an IPv6 feed (3GB just happens to be what I have due to
>> upgrading from 1GB by adding a pair of 1GB sticks)
>>=20
>> If you need more then ~500Mbit or so then you would want something
>> bigger. The MX80 is nice and has some cheap bundles at the moment; =
it's
>> specced for 8M routes (unspecified, but the way Juniper chips =
typically
>> store routes there's less difference in size then the straight 4x)
>>=20
>> =46rom others the Cisco ASR1k or Brocade NetIron XMR (2M routes IIRC) =
are
>> the obvious choices.
> And I meant Brocade NetIron CES here.
