D-Link DGS-6600-48T Product Manual - Page 434

DGS-6604 m mtu mtu BYTES default mtu mtu Use the command to set the MTU value. This value is used to monitor oversize IP packets. Use default form to restore to the default mtu size. Syntax Description BYTES Set the monitor threshold. The settable range is 1280 to 9692 bytes. Default Command Mode Usage Guideline Examples BYTES: 1500 bytes Interface command for physical port and port channel but not for VLAN. Oversize packets will be sent to the control module blade for further processing and the check is done in egress ports. This is especially important to support IPv6 because an IPv6 router should send out ICMP messages to source device for an MTU violation situation. As a port is removed from the port-channel member list, the MTU setting for the port will be reset to the default setting. One should set appropriate values to these MTUs to avoid unexpected results. In the general case, max- rcv-frame-size is larger than the ip mtu and mtu to cover L2 header size. mtu is set as the same value as ip mtu. This example shows how to set mtu as 6000 bytes at eth4.1 Switch# configure terminal Switch(config)# interface eth4.1 Switch(config-if) mtu 6000 Switch(config-if)# end This example shows how to restore the default mtu Switch# configure terminal Swtich(config)# interface eth4.1 Switch(config-if)# default mtu Switch(config-if)# end Verify the settings by entering the show interface command CLI Reference Guide 424