Information About the MTU
The default maximum transmission unit (MTU) size for frames received and sent on all device interfaces is 1500 bytes.
Restrictions for System MTU
When configuring the system MTU values, follow these guidelines:
The device does not support the MTU on a per-interface basis.
If you enter the system mtu bytes global configuration command, the command affects all the switched and routed ports on the switch.
System MTU Value Application
In a switch stack, the MTU values applied to member switches depends upon the stack configuration. The following stack configurations are supported:
The upper limit of the IP or IPv6 MTU value is based on the switch configuration and refers to the currently applied system MTU or the system jumbo MTU value. For more information about setting the MTU sizes, see the system mtu global configuration command in the command reference for this release.