Re: 3750G

rate-limit is legacy commnad but gives more flexible options for Bc than
Police command which is not more than 1 Mb.
Policing vs Shaping is best topic to discuss rather than Rate-limit vs
Police : x

Please rate :P

Thanks
Shahid

On Thu, Apr 1, 2010 at 11:51 PM, naman sharma <naman.prep_at_gmail.com> wrote:

> thanks shahid, just to get more clarity. rate-limit is also another form of
> policing so how come the burst size is diff is that.
>
> naman
>
>
> On 1 April 2010 13:46, Shahid Ansari <shahid1357_at_gmail.com> wrote:
>
>>
>> Formula is right ..
>>
>> 3750GSWITCH(config-pmap-c)#police 250000000 ?
>> <8000-1000000> Normal burst bytes
>>
>> max it can go 1Mb :) only
>>
>> but If you try rate-limit
>>
>> int g0/1/10
>> no switchport
>> ip address x.x.x.x x.x.x.x
>> rate-limit input 250000000 46875000 46875000 conform-action transmit
>> exceed-action drop
>>
>>
>> in my opinion rate-limit will do what you want ?
>>
>> Thanks
>> Shahid
>>
>>
>>
>> On Thu, Apr 1, 2010 at 10:08 PM, naman sharma <naman.prep_at_gmail.com>wrote:
>>
>>> Shahid,
>>>
>>> Yes i have a L3 interface in which i would be doing ingress policing. so
>>> in case i need to police at 250 mb on a 1 gig link. what would be the
>>> formula. is the same formula posted on cisco website
>>>
>>> normal burst = configured rate * (1 byte)/(8 bits) * 1.5 seconds
>>>
>>> extended burst = 2 * normal burst
>>>
>>> also can you share your configuration and what do you think will 3750G be able to police at 250 mb.
>>>
>>> thanks
>>> naman
>>>
>>>
>>>
>>> On 1 April 2010 03:01, Shahid Ansari <shahid1357_at_gmail.com> wrote:
>>>
>>>> Nauman ,
>>>>
>>>> As per the calculation bc should be 46875000, which is not supported
>>>> :),Max you can put it 1 Mb .
>>>> If it is L3 Interface , did you tried with rate-limit ?
>>>> In 3750G , I have done some bandwidth control for Ingress as well as
>>>> egress traffic by using Police(Ingress) and Srr-queue (Egress) commands
>>>>
>>>>
>>>>
>>>> Thanks
>>>> Shahid Ansari
>>>>
>>>>
>>>>
>>>>
>>>> On Tue, Mar 30, 2010 at 10:20 PM, naman sharma <naman.prep_at_gmail.com>wrote:
>>>>
>>>>> Hi experts,
>>>>>
>>>>> I have a 3750G switch and i am doing ingress traffic policing as it
>>>>> only
>>>>> supports that.
>>>>>
>>>>> Now i want to police my traffic at 250Mb on a 1Gig link. The problem is
>>>>> that
>>>>> the max burst capacity supported by 3750G is 1MB. now i am little
>>>>> confused.
>>>>>
>>>>> unlike shaping the buckets are not filled at regular time intervals in
>>>>> policing but are replenished in comparison to when did the last packet
>>>>> came
>>>>> and the Bc(burst) is only the depth of the bucket in which tokens are
>>>>> filled. This is when i am using single bucket logic.
>>>>>
>>>>> So would i be able to achieve my policing at 250MB even if i put my max
>>>>> burst to 1 MB. Need some help here on the logic.
>>>>>
>>>>> Thanks
>>>>> Naman
>>>>>
>>>>>
>>>>> Blogs and organic groups at http://www.ccie.net
>>>>>
>>>>> _______________________________________________________________________
>>>>> Subscription information may be found at:
>>>>> http://www.groupstudy.com/list/CCIELab.html

Blogs and organic groups at http://www.ccie.net
Received on Fri Apr 02 2010 - 00:12:52 ART