Re: Question with QoS in switch 2960G

I do not have a config example to unicast you, however you are on the right
track with the police configs. Skip the first two options you list, they
are not applicable for the task you want to accomplish. Focus on the 3rd
option ...

From an older email / discussion, here is a nice link:
http://blog.internetworkexpert.com/2008/09/11/comparing-traffic-policing-features-in-the-3550-and-3560-switches/

The show policy-map interface command is not implemented on the switches
...

http://www.cisco.com/en/US/docs/switches/lan/catalyst2960/software/release/12.2_46_se/configuration/guide/swqos.html#wp1065146

From the config guide, you can see that this command has not been
implemented. Copied and pasted from this link:

Note:
Do not use the show policy-map interface privileged EXEC command to display
classification information for incoming traffic. The control-plane and
interface keywords are not supported, and the statistics shown in the
display should be ignored.

Alternate commands are listed.

I would suggest to monitor this afterwards as the police command will cause
some packet drops, which in turn will cause retrans ... and then more
packets, and more packet loss etc....

TCP will find a happy place however, and the traffic rate will conform to
what you configure. TCP is good like this ...

Do you need to protect management traffic or server updates? Just some
considerations ... this would make your configurations more complex, but
would also help things run more smoothly I think. If you have a remote
management application, you may consider creating a class for this and then
giving it a min bandwidth. Just a thought ...

HTH,

Andrew Lee Lissitz

On Wed, Dec 2, 2009 at 9:43 PM, Edouard Zorrilla <ezorrilla_at_tsf.com.pe>wrote:

> Hello,
>
> I know I can limit a traffic in a router but now my boss my job is to limit
> a
> traffic from a customers which has a server in a Cisco2960G, I want to
> limit
> to 30M.
>
> I have tried 3 ways :
>
> 1.-
> am-tv(config-if)#max-reserved-bandwidth ?
> <1-100> Max. reservable bandwidth as % of interface bandwidth
> <cr>
> am-tv(config-if)#
>
> 2.-
> am-tv(config-if)#storm-control unicast level ?
> <0.00 - 100.00> Enter rising threshold
> bps Enter suppression level in bits per second
> pps Enter suppression level in packets per second
> am-tv(config-if)#
>
> 3.-
> am-tv#sh policy-map
> Policy Map EZC
> Class class-default
> police 30000000 40000 exceed-action drop
>
> am-tv(config)#int gi0/14
> am-tv(config-if)#service-policy input EZC
>
> My idea is to implement the 3th one since I gues this is the better way to
> limit to 30Mbps. The issue is that when I send traffic thru the port, I do
> not
> see traffic match when I display with : "am-tv#sh policy-map interface
> gigabitEthernet 0/14" command.
>
> Let me know if some of you were able to make this work, if you have a
> configuration example for the 3rth case, please send a unicast mail .
>
> My IOS :
>
> am-tv#sh ver | in IOS
> Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version
> 12.2(44)SE2,
> RELEASE SOFTWARE (fc2)
> am-tv#
>
> Thanks a lot,
>
> Regards
>
>
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-- 
Andrew Lee Lissitz
all.from.nj_at_gmail.com
Blogs and organic groups at http://www.ccie.net