[c-nsp] Limit port usage on a cisco 3550

Mohammad Khalil eng_mssk at hotmail.com
Wed Jun 2 05:51:07 EDT 2010


Hi all

i have the same request , i want ti police outbound traffic on a Layer 2 port
i have Cisco ME3750 with c3750me-i5-mz.122-35.SE5 IOS image

when i apply the same configuration to the interface , first i cannot find it when i make show run interface
and i have monitored the rate and it didnt drop the packets
and when i no the service policy under the interface , i get prompted that no service policy is attached to the interface

i issued the command sh policy-map interface fastEthernet 1/0/6 and output results
mls qos
class-map match-all MSSK
  match ip dscp cs1 
!
!
policy-map MSSK-Policy
  class MSSK
    police 200000 8000 exceed-action drop

interface FastEthernet1/0/6
service-policy output MSSK-Policy

Any ideas ?

Thanks

> Date: Wed, 2 Jun 2010 09:19:53 +0700
> From: uri at tomsknet.ru
> To: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] Limit port usage on a cisco 3550
> 
> 		Hi there!
> 
> > The 3550 Switch doesn't support egress policing or shaping at less then line
> > rate.
> 
> 	There's only one case when you can *DO* egress policing on
> cat3550 platform but you're restricted to use *ONLY*:
> 
>  --  class-map w/ "match ip dscp"
>  --  action = "police"
>   
>   http://tinyurl.com/2a94rx4  --> Step #14
> 
> !
> !
> mls qos
> !
> class-map match-all SCAVENGER
>   match ip dscp cs1 
> !
> policy-map EGRESS
>   class SCAVENGER
>     police 8000 8000 exceed-action drop
> !
> interface FastEthernet0/1
>  service-policy output EGRESS
>  mls qos trust dscp
>  mls qos monitor dscp 8
>  mls qos monitor packets
> !
> 
> dut-3550#sh mls qos interface fastEthernet 0/1 statistics | b Egress
> Egress
>   dscp: incoming   no_change  classified policed    dropped (in pkts)
>     8 : 1000          n/a       n/a      0          52        
> Others: 88            n/a       n/a      0          0         
> 
> dut-3550#sh ver | i IOS
> Cisco IOS Software, C3550 Software (C3550-IPSERVICESK9-M), Version 12.2(25)SEE4, RELEASE SOFTWARE (fc1)
> 
> 	HTH!
> 
> [snip]
> 
> -- 
> Best Regards,
> Yuri Selivanov
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