Adding A Description For An Interface; Configuring The System Mtu - Cisco WS-C2960-24LC-S Software Configuration Manual

Configuring the System MTU

This example shows how to enable auto-MDIX on a port:
Switch# configure terminal
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# speed auto
Switch(config-if)# duplex auto
Switch(config-if)# mdix auto
Switch(config-if)# end

Adding a Description for an Interface

You can add a description about an interface to help you remember its function. The description appears
in the output of these privileged EXEC commands: show configuration
show interfaces.
Beginning in privileged EXEC mode, follow these steps to add a description for an interface:
Command
Step 1 configure terminal
Step 2 interface interface-id
Step 3 description string
Step 4
end
Step 5 show interfaces interface-id description
or
show running-config
Step 6 copy running-config startup-config
Use the no description interface configuration command to delete the description.
This example shows how to add a description on a port and how to verify the description:
Switch# config terminal
Enter configuration commands, one per line.
Switch(config)# interface gigabitethernet0/2
Switch(config-if)# description Connects to Marketing
Switch(config-if)# end
Switch# show interfaces gigabitethernet0/2 description
Interface Status
Gi0/2
Configuring the System MTU
The default maximum transmission unit (MTU) size for frames received and transmitted on all interfaces
on the switch is 1500 bytes. You can increase the MTU size for all interfaces operating at 10 or 100 Mb/s
by using the system mtu global configuration command. You can increase the MTU size to support
jumbo frames on all Gigabit Ethernet interfaces by using the system mtu jumbo global configuration
command.
Catalyst 2960 Switch Software Configuration Guide
10-16
Purpose
Enter global configuration mode.
Specify the interface for which you are adding a description, and enter
interface configuration mode.
Add a description (up to 240 characters) for an interface.
Return to privileged EXEC mode.
Verify your entry.
(Optional) Save your entries in the configuration file.
Protocol Description
admin down down
Chapter 10
End with CNTL/Z.
Connects to Marketing
Configuring Interface Characteristics
, ,
show running-config and
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