Efficient Networks 107-0001-000 manual Eth restart, Eth mtu size interface

Efficient Networks® Router family	Chapter 5: Ethernet Interface Commands
Command Line Interface Guide

eth mtu

Sets the maximum transfer unit for the Ethernet interface. The default is 1500 bytes.

You can set the MTU size to less than 1500 bytes, but you cannot set the MTU to greater than 1500 bytes, even if you specify a larger value on an eth mtu command. (RFC 1042 recommends 1500 bytes as the maximum MTU for an Ethernet network.)

To see the current MTU size for an interface that has IP enabled, use the ipifs command.

Mgmt Class

Network (R/W)

Input Format

eth mtu <size> [<interface>]

Parameters

<size> Maximum number of bytes that can be transferred as a unit.

<interface>a,b Ethernet interface.

aInteger, 0, 1 or it may be omitted if the router has only 1 Ethernet interface.

bTo specify a logical interface other than logical interface 0, specify both the port number and the logical interface number (<port #>:<logical #>, for example, 0:1).

Response

Command prompt.

eth restart

Stops and restarts a logical Ethernet interface. To read about logical Ethernet interfaces, see “IP Subnets” on page 6-1of the Technical Reference Guide.

Certain configuration changes for a logical Ethernet interface become effective only after the logical interface is restarted or the router is rebooted. Remember to save the changes before the restart or reboot.

NOTE:

Use restart instead of reboot whenever possible. A restart does not affect other interfaces, allowing their traffic to continue. For example, using restart, you can add an IP route without killing voice traffic.

To restart an remote interface, use remote restart.

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