Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
show interfaces link
show interfaces link
To display how long a cable has been disconnected from an interface, use the show interfaces link
command:
show interfaces link [module mod_num]
Syntax Description
Defaults This command has no default settings.
Command Modes Privileged EXEC mode
Command History
Usage Guidelines If the interface state is up, the command displays 0:00. If the interface state is down, the time (in hours,
minutes, and seconds) is displayed.
Examples This example shows how to display active link-level information:
Switch# show interfaces link
Port Name Down Time
Gi1/1 00:00:00
Gi1/2 00:00:00
Gi3/1 00:00:00
Gi3/2 00:00:00
Fa4/1 00:00:00
Fa4/2 00:00:00
Fa4/3 00:00:00
Fa4/4 00:00:00
This example shows how to display inactive link-level information:
Switch# show interfaces link
Port Name Down Time
Gi3/4 1 minute 28 secs
Gi3/5 1 minute 28 secs
Gi3/6 1 minute 28 secs
Gi4/1 1 minute 28 secs
In this example, the cable has been disconnected from the port for 1 minute and 28 seconds.
module mod_num (Optional) Limits the display to interfaces on a module.
Release Modification
12.2(18)EW Support for this command was introduced on the Catalyst 4500 series switch.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E