4500X per port MTU

[matthew.clarke2]

Hi,

Does anyone know if the new 4500X series will support a per port MTU?

Many thanks

Matt

[Reza Sharifi]

Hi,

Yes, it is supported

From the config guide:

The jumbo frames feature allows the switch to forward packets as large  as 9216 bytes (larger than the IEEE Ethernet MTU), rather than declare  those frames "oversize" and discard them. This feature is typically used  for large data transfers. The jumbo frames feature can be configured on  a per-port basis on Layer 2 and Layer 3 interfaces. The feature is  supported only on the following hardware:

•WS-X4306-GB: all ports

•WS-X4232-GB-RJ: ports 1-2

•WS-X4418-GB: ports 1-2

•WS-X4412-2GB-TX: ports 13-14

•WS-4648-RJ45V-E

•WS-X4648+RJ45V+E

•WS-X4706-10GE linecards

•supervisor engine uplink ports

More info here:

http://www.cisco.com/en/US/docs/switches/lan/catalyst4500/15.1/XE_330SG/configuration/guide/intro.html#wp1039358

HTH

[matthew.clarke2]

Hi Reza,

Thanks for the response.  I was actually talking about the 4500X   rather than the 4500 series chassis. The 4500X is a new 1U  10gbps aggregation switch.  Not seeing anything contrete on that model in Cisco's documentation.  I have reached out to our SE too, I will share what i learn.

Thanks

Matt