[c-nsp] TCAM refresher

[Jeremy Stinson]

Hello all,

In the Cisco world what sits between a NPE-G2 (~1024mbit/s) and the 
SUP-7203BLX (720gbit/s) that can hold full routes and doesn't cost more then 
the 720? It is quite disappointing if these are your options.

Jeremy

----- Original Message ----- 
From: "Chris Woodfield" <rekoil at semihuman.com>
To: "Florian Weimer" <fw at deneb.enyo.de>
Cc: "Tony Li" <tli at cisco.com>; <cisco-nsp at puck.nether.net>
Sent: Saturday, March 17, 2007 2:41 PM
Subject: Re: [c-nsp] TCAM refresher


> Yes, the TCAM contains all routes (IGP, BGP, connected) plus ARP
> entries.
>
> -C
>
> On Mar 17, 2007, at 2:13 PM, Florian Weimer wrote:
>
>> * Chris Woodfield:
>>
>>> To answer a question earlier in the thread, a TCAM overflow event
>>> causes only the prefixes that don't fix to be process switched. The
>>> TCAM is populated in order of longest-prefix-first, which means that
>>> in the case of TCAM overflow the shortest prefix matches are the ones
>>> that will be software-switched.
>>
>> Does this include entries for directly-connected hosts?  That could be
>> potentially very bad.
>>
>
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