VLAN Errors

[jbahm]

I plan on using a 3750 layer 3 switch as a multileg router for several subnets. When I set a 3750 port to

a fixed vlan, and put and 3548 switch with no vlans configured, I get the following error

"CDP-4-NATIVE_VLAN_MISMATCH:"

My existing switches are all configured this way.

Does anyone know of a way to define a vlan on the

3750 which will ingnore the lack of vlan on the 3548s?

[smif101]

The issue here is that the switches are set with a differnt native vlan. I assume you might have changed this on the 3750 considering that the 3548's sound like they have all the ports set to vlan 1. On the 3750 you can enter the command switchport trunk native vlan to set it to be vlan 1 again or change the 3548's. Of course you might be able to get rid of this error by turning off CDP.

Jason Smith

www.smif101.com

[steve.busby]

Besides what Jason posted, there are a couple of other ways to get rid of these messages, the first would be to adjust the logging level to "3" so you don't receive the errors anymore.

Your other option is to put the 3548s into the appropriate vlan to match what's configured on the 3750 interface.