Re: Internet Edge Router replacement - IPv6 route table size considerations

[Chris Woodfield <rekoil () semihuman com>]

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.
>
> Chris
>
> -----Original Message-----
> From: Julien Goodwin [mailto:nanog () studio442 com au] 
> 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
>
> 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’t 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"
> >
> > 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)
> >
> > 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)
> >
> > From others the Cisco ASR1k or Brocade NetIron XMR (2M routes IIRC) are
> > the obvious choices.
> And I meant Brocade NetIron CES here.