Re: OT: Monitoring 3550 routed traffic w SNMP

Sadly I have...

In this particular case, just getting the incomming packets that are
L3 forwarded will do, so the SPAN thing would be ok.
As I said, I was looking for a cleaner way, but you confirmed my fears :-/

Thanks,
-Carlos

Ryan West @ 28/09/2009 9:43 -0300 dixit:
> I meant to say NO trunk interfaces.
>
> Sent from handheld.
>
> On Sep 28, 2009, at 8:42 AM, "Ryan West" <rwest_at_zyedge.com> wrote:
>
>> You could run cacti to graph all the interfaces and apply an aggregate
>> graph to view all the traffic. This assumes there are trunk interfaces
>> you want to accurately monitor.
>>
>> Spanning is an interesting idea, but you're only going to get transmit
>> bits/s from your SNMP output.
>>
>> Sent from handheld.
>>
>> On Sep 28, 2009, at 8:12 AM, "Carlos G Mendioroz" <tron_at_huapi.ba.ar>
>> wrote:
>>
>>> Hi all,
>>> just learned that aparently the 3550s do not show
>>> cef switched (routed) packets in reports for VLAN interfaces.
>>>
>>> So if you do a show int vlan x, you do not see traffic,
>>> other than that which is punted to the processor,
>>> and SNMP counters follow the same info.
>>>
>>> Disabling cef would do, but obviously that is out of the
>>> question.
>>>
>>> My goal is to be able to monitor the vlan traffic. Any idea ?
>>> I'm leaning to set up a monitor session to copy vlan traffic to
>>> a port and have its counters used as vlan monitor :)
>>>
>>> But cleaner ideas are welcome.
>>>
>>> Thanks,
>>> --
>>> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>>
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>
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>>
>>
>>
>>

-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net