vlan bandwidth monitoring on Cisco 3560 Switch

[simonmbizwo]

Please kindly assist advise, i wish to monitor bandwidth usage per vlan, on my switch.  I dont seem to be getting OID's for vlans.

Is there a way i can do this as snmp is not able to differentiate traffic per vlan.

[Dennis Mink · Accepted solution]

what is it exactly that you want to monitor?   the in/out traffic on a certain SVI?

like for example  interface vlan 10?

SNMP should do this.

cheers

[simonmbizwo]

yes, i want read input and output octets using snmp and then using a script calculate the in/out traffic, producing graphs on nagios.  i have tried with snmp , i dont seem to be getting vlan OIDs.

[Dennis Mink · Accepted solution]

OK, but do you want the IN/OUT on the interface vlan X?

[simonmbizwo]

yes i just want in/out on the interface thats all 

[mvsheik123]

Hi,

These links may help you find some related info.

https://supportforums.cisco.com/discussion/11330386/snmp-oid-current-port-utilization-2960-3560-and-3750-switches

http://tools.cisco.com/ITDIT/MIBS/MainServlet

hth

MS

[simonmbizwo]

Hi 

I have already done this for physical interfaces on the switch ,now i want to do so for vlans. snmp doesnt seem to have a way to differentiate vlan traffic and separate it. If there was an OID for a vlan , it would be easier to read the in/out octets. The links you gave me explain what i have done already.

Regards

[Evgeniy Prichinin]

It's not possible to get information about transit vlans on this platform. You can only get values for Physical / SVI / Port-Channel interfaces.