Administrator Guide

Example
(Multiple
Range)
This example shows how to use commas to add SONET, VLAN, and port-channel
interfaces to the range.
Dell(config-if)# interface range gigabitethernet5/1-23,
tengigabitethernet1/1–2,
Vlan 2–100, Port 1–25
Dell(config-if-range)# no shutdown
Dell(config-if-range)#
Related
Commands
interface port-channel — configures a port channel group.
interface vlan — configures a VLAN interface.
keepalive
Send keepalive packets periodically to keep an interface alive when it is not transmitting data.
Syntax
keepalive [seconds]
To stop sending keepalive packets, use the no keepalive command.
Parameters
seconds (OPTIONAL) For interfaces with PPP encapsulation enabled,
enter the number of seconds between keepalive packets.
The range is from 0 to 23767. The default is 10 seconds.
Defaults Enabled.
Command
Modes
INTERFACE
Command
History
Version 9.2(0.0) Introduced on the M I/O Aggregator. This command is
supported in Programmable-Mux (PMUX) mode only.
Version 8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
When you configure keepalive, the system sends a self-addressed packet out of
the configured interface to verify that the far end of a WAN link is up. When you
configure no keepalive, the system does not send keepalive packets and so the
local end of a WAN link remains up even if the remote end is down.
mtu
Set the link maximum transmission unit (MTU) (frame size) for an Ethernet interface.
Syntax
mtu value
To return to the default MTU value, use the no mtu command.
Parameters
value Enter a maximum frame size in bytes. The range is from 594
to 9252. MXL Switch Range is from 594 to 12000. The
default is 1554.
PMUX Mode of the I/O Aggregator
397