How to monitor bandwidth of vlan on switch

[jprodrig01]

Hi all,

I need your help to monitor or to see the bandwidth of vlan on switch, I read that this process is with VLAN access maps but I don’t know how.

Could you give me one example of configuration?

Thanks in advance

[sean_evershed]

Hi,

How is your network monitoring tool configured? Do you want to a span port to direct traffic to this device for analysis?

If so see below an example config for a 6500

http://www.cisco.com/en/US/products/hw/switches/ps708/products_white_paper09186a008017b753.shtml

A simpler alternative is to use SNMP polling to monitor bandwidth consumption on a VLAN interface.

Please remember to rate posts that are helpful.

[jprodrig01]

Mi network topology is attached , I don`t have vlan port only two trunks ports, about 30 vlans in this moment, and I need the input rate and output rate of each vlan on the trunks.

thanks for your help

[sean_evershed]

Do the VLANs only exist on the VMWare Server?

Assuming your 4500 switch has the capability I would suggest configuring Netflow.

This will allow you to graph bandwidth utilization for source and destination IP addresses.

[jprodrig01]

yes the VLANs only exist on the VMWare Server, Im going to try to configure netflow  I don´t know if switch has the capability.

[sean_evershed]

If not the 4500 then also check your router to see if it supports Netflow.