Carrier Access Adit 3000 Series and Multi-Service Router (MSR) Card none - Manual (Page 252)

11-8 Adit 3000 (Rel. 1.6) and MSR Card (Rel 2.0) CLI
Configuration - Ethernet Interface Mode
ip mtu
Use the Ethernet Interface ip mtu command to set the Maximum Transmission Unit. Sets the largest
packet size (bytes) the network will allow to transmit.
Syntax:
(config-int-eth-{ n})# ip mtu {size|auto}
Example:
(config-int-eth-1)# ip mtu auto
Supported Platforms: Adit 3104, Adit 3200, Adit 3500, MSR
Field Definition
size Allows the user to set the Maximum Transmission Unit (MTU).
size = range of 576 to 1500 bytes.
auto Auto sets the MTU at 1500 bytes.