[c-nsp] Maximum-routes Routes on 7600 with SUP2/PFC2

Julio Arruda jarruda-cnsp at jarruda.com
Tue Jun 5 09:46:34 EDT 2007


Mohacsi Janos wrote:
> On Mon, 4 Jun 2007, Zahid Hassan wrote:
...
>> I am carrying full feed Internet (219K) plus VPNv4 routes (1K)
>> on an OSR-7609 with SUP-2/PFC2.
>>
>> I seems to be getting intermittent packets drops and loss of
>> connectivity from CPEs terminating on this OSR.
>>
>> I wondering if has anything to do with the maximum of routes
>> that can be programmed in the hardware allowed per protocol.
> 
> The actual usage can be seen with the following command:
> show platform hardware capacity forwarding
>>
>> Does anyone know the maximum number of routes a SUP-2/PFC2 can carry ?
> 
> Have a look at table at the end of this page:
> http://www.cisco.com/en/US/products/hw/routers/ps368/prod_eol_notice0900aecd8022200b.html

One thing, that may or not matter to your case, BUT..you may want to 
look at..
http://www.nanog.org/mtg-0702/presentations/fib-desilva.pdf

Specific configurations (like uRPF) would hit harder SUP2 than the 
SUP720 and etc, in the sup2, cutting the FIB in half it seems..




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