[c-nsp] Couple performance questions regarding CAT 6500 (SUP 720-3BXL)

Phil Mayers p.mayers at imperial.ac.uk
Fri Nov 13 11:26:05 EST 2009


> I noticed we're having a high number of TTL failures:
> 
> TTL failures                          : 24541591
> 
> So I implemented a HW rate-limiter as such:
> 
> mls rate-limit all ttl-failure 500 10
> 
> Two questions about this,
> 
> A) is there any way to find out how many packets are being 'rate-limited' due to this command?
> and

I am not aware of any, but would like to know too!

> B) do I need to enable mls qos or anything else to 'globally enable' the HW rate-limiter?

No. It's separate from QoS, you don't need QoS enabled for the MLS rate 
limiters.


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