cisco 3750 vlan interface stats.

[lordbigsack]

Hi, I need to show interface utilization for a small environment with 2x3750 stacks, 5x3750 & 8x2960.

My stacks are running trunks to the remainder of the switches

I have a couple of problems.

1: I would like to know how to graph the tagged interfaces and show the split between vlans
2: How to graph my routed vlan interfaces (2)


thank in advance

[dieselboy]

1) Can you snmp that information from the stack? I've walked a 3750 recently and dont recall there ever being a mib for seperate VLAN stats on a single interface. If you can split the VLANs so they have their own switch port then simply graph traffic on that one port. Waste of a port though.

2) You can poll the vlan interfaces. However, I would expect the counters to only increment if they are being targeted as a gateway. If you have a switch, with an SVI in that VLAN, but your default gateway for example is on another stack, then the first switch would not be actually routing anything.
If your network is logical and you can map out paths to / from areas then you can poll interfaces to get an idea of how much traffic is being transmitted and to where.