Adding A Description For An Interface - Cisco Catalyst 4500 Series Configuration Manual

Configuring Optional Interface Features

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 the following commands: show configuration
show interfaces.
To add a description for an interface, enter the following command:
Command
Switch(config-if)# description string
This example shows how to add a description on Fast Ethernet interface 5/5:
Switch(config)# interface fastethernet 5/5
Switch(config-if)# description Channel-group to "Marketing"
Configuring Flow Control
Gigabit Ethernet ports use flow control to slow down the transmission of incoming packets. If a buffer
on a Gigabit Ethernet port runs out of space, the port transmits a special packet that requests remote ports
to delay sending packets for a period of time. The port can also receive this special packet from its link
partner for the same purpose. This special packet is called a pause frame.
The default settings for Gigabit Ethernet interfaces are as follows:
•
•
•
•
The default settings for 10-Gigabit Ethernet interfaces are as follows:
•
•
desired is not a flow control option on the 10-Gigabit Ethernet interfaces.
Note
To configure flow control, perform this task:
Command
Step 1
Switch# configure terminal
Step 2
Switch(config)# interface
interface-id
Step 3
Switch(config-if)# flowcontrol
{receive | send} {off | on |
desired}
Step 4
Switch(config-if)# end
Step 5
Switch(config)# end
Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
7-22
Sending pause frames is off—Non-oversubscribed Gigabit Ethernet interfaces.
Receiving pause frames is desired—Non-oversubscribed Gigabit Ethernet interfaces.
Sending pause frames is on—Oversubscribed Gigabit Ethernet interfaces.
Receiving pause frames is desired—Oversubscribed Gigabit Ethernet interfaces
Sending pause frames is off.
Receiving pause frames is on.
Purpose
Enters global configuration mode.
Enters interface configuration mode and specifies the interface to be
enabled for flowcontrol.
Configures a Gigabit Ethernet port to send or receive pause frames.
Returns to configuration mode.
Returns to privileged EXEC mode.
Chapter 7
,
show running-config
Purpose
Adds a description for an interface.
Configuring Interfaces
,
and
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