[snmp] OID for packets per second

[Ray Tran]

Hi Shrouk,
if I remember correctly you can't directly get the rate per second.  
You need to use the MIB-2 OID's to
repeatedly get the cumulative number of packets for each interface  
and divide by the time interval
between samples.

The OID's of interest are listed here: http://www.alvestrand.no/ 
objectid/1.3.6.1.2.1.2.2.1.html.
I think that you are probably interested in 1.3.6.1.2.1.2.2.1.11  
(ifInUcastPkts) and 1.3.6.1.2.1.2.2.1.17
(ifOutUcastPkts) but 1.3.6.1.2.1.2.2.1.12 (ifInNUcastPkts) and  
1.3.6.1.2.1.2.2.1.18 (ifOutNUcastPkts)
may be interesting if you are using multicasting (including broadcasts).

Hope that helps.

On 30 Apr 2008, at 14:58, Shrouk Tharwat wrote:

> Hi Birgit,
>
> What i mean is that i need to plot the number of packets per REAL time
> second for the whole system including all interfaces . so does the  
> OID of
> the IP input receives gets me the packets per second per interface  
> or does
> it get the total number of packets since the system started up? and  
> do u
> know how can i get by any means the number of  packets per second  
> for a
> certain interval of time?
>
>
> Thanks;
> Shrouk
> On Thu, Apr 24, 2008 at 2:53 PM, Birgit Arkesteijn  
> <birgit at westhawk.co.uk>
> wrote:
>
>> Hi Shrouk,
>>
>> I assume you mean the number of packet per second of an interface?
>>
>> uk.co.westhawk.snmp.pdu.InterfaceGetNextPdu.java
>> gives you the speed, but that's
>> (number of octets transmitted & received) per second.
>>
>> Not sure if that helps.
>>
>> Cheers, Birgit
>>
>>
>>
>> On 24/04/08 11:16, Shrouk Tharwat wrote:
>>
>>> Dears;
>>>
>>> Does anyone know the OID for getting the number of packets per  
>>> second??
>>> and
>>> if  its not possibe using the OID ,is there any other alternative?
>>>
>>> Thanks;
>>> Shrouk
>>>
>>
>> --
>> -- Birgit Arkesteijn, birgit at westhawk.co.uk,
>> -- Westhawk Ltd, Albion Wharf, 19 Albion Street, Manchester M1  
>> 5LN, UK
>> -- Company no: 1769350
>> -- Registered Office:
>> -- 15 London Road, Stockton Heath, Warrington WA4 6SJ. UK.
>> -- tel.: +44 (0)161 237 0660
>> -- <URL: http://www.westhawk.co.uk>
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Regards,
-- 
Ray Tran
ray at artran.co.uk
www.artran.co.uk