Cisco Catalyst 4500 Series Administration Guide

9-3
Software Configuration Guide—Release IOS XE 3.6.0E and IOS 15.2(2)E
OL-30933-01
Chapter 9 Checking Port Status and Connectivity
Displaying MAC Addresses
Displaying MAC Addresses
In addition to displaying the MAC address range for a module using the show module command, you
can display the MAC address table information of a specific MAC address or a specific interface in the
switch using the show mac-address-table address and show mac-address-table interface commands.
This example shows how to display MAC address table information for a specific MAC address:
Switch# show mac-address-table address 0050.3e8d.6400
vlan mac address type protocol qos ports
-----+---------------+--------+---------+---+--------------------------------
200 0050.3e8d.6400 static assigned -- Switch
100 0050.3e8d.6400 static assigned -- Switch
5 0050.3e8d.6400 static assigned -- Switch
4 0050.3e8d.6400 static ipx -- Switch
1 0050.3e8d.6400 static ipx -- Switch
1 0050.3e8d.6400 static assigned -- Switch
4 0050.3e8d.6400 static assigned -- Switch
5 0050.3e8d.6400 static ipx -- Switch
100 0050.3e8d.6400 static ipx -- Switch
200 0050.3e8d.6400 static ipx -- Switch
100 0050.3e8d.6400 static other -- Switch
200 0050.3e8d.6400 static other -- Switch
5 0050.3e8d.6400 static other -- Switch
4 0050.3e8d.6400 static ip -- Switch
1 0050.3e8d.6400 static ip -- Route
1 0050.3e8d.6400 static other -- Switch
4 0050.3e8d.6400 static other -- Switch
5 0050.3e8d.6400 static ip -- Switch
200 0050.3e8d.6400 static ip -- Switch
100 0050.3e8d.6400 static ip -- Switch
Switch#
This example shows how to display MAC address table information for a specific interface:
Switch# show mac-address-table interface gigabit 1/1
Multicast Entries
vlan mac address type ports
-------+---------------+-------+-------------------------------------------
1 ffff.ffff.ffff system Switch,Gi6/1,Gi6/2,Gi6/9,Gi1/1
Switch#
Checking Cable Status Using Time Domain Reflectometer
The Time Domain Reflectometer (TDR) feature allows you to determine if cable is OPEN or SHORT
when it is at fault.
Overview
With TDR, you can check the status of copper cables on the 48-port 10/100/1000 BASE-T modules for
the Catalyst 4500 series switch. TDR detects a cable fault by sending a signal through the cable and
reading the signal that is reflected back. All or part of the signal can be reflected back either by cable
defects or by the end of the cable.

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