[c-nsp] SNMP ifInOctets: before or after rate-limit

Amol Sapkal amolsapkal at gmail.com
Tue May 16 20:21:48 EDT 2006


Hi,

Infact, you should be able to get stats for the traffic dropped as well.
ifInOctets would give you all the traffic that hits the interface.


Regards,
Amol Sapkal




On 5/17/06, Gustavo Rodrigues Ramos <gustavo at acmesecurity.org> wrote:
>
> Hi,
>
> Vincent De Keyzer wrote:
> > Hello,
> > I have a customer whose interface is limited to 16 Mbps upstream with
> >
> > interface GigabitEthernet0/1.400
> >  encapsulation dot1Q 400
> >              rate-limit input 16000000 3000000 4000000 conform-action
> > transmit exceed-action drop
> >
> > However, when I look at the traffic in real-time, I see a sustained 24
> Mbps
> > in (something is congesting the line at this moment).
> >
> > Is it because rate-limiting happens after SNMP measurement?
>
> Yes. If you want to measure the traffic AFTER the rate-limit you must
> use ccarStatSwitchedBytes [1].
>
> [1]
>
> http://tools.cisco.com/Support/SNMP/do/BrowseOID.do?local=en&translate=Translate&objectInput=1.3.6.1.4.1.9.9.113.1.2.1.1.2
>
> Gustavo.
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>



-- 
Warm regards,

Amol Sapkal

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