Cisco Catalyst 4500 Series, Software Configuration Manual

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C H A P T E R
10-1
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
10
Checking Port Status and Connectivity
This chapter describes how to check switch port status and connectivity on the Catalyst 4500 series
switch.
This chapter includes the following major sections:
• Checking Module Status, page 10-1
•
Checking Interfaces Status, page 10-2
• Displaying MAC Addresses, page 10-3
•
Checking Cable Status Using Time Domain Reflectometer, page 10-3
• Using Telnet, page 10-5
•
Changing the Logout Timer, page 10-6
• Monitoring User Sessions, page 10-6
•
Using Ping, page 10-7
• Using IP Traceroute, page 10-8
•
Using Layer 2 Traceroute, page 10-9
• Configuring ICMP, page 10-12
Note For complete syntax and usage information for the switch commands used in this chapter, see the
Cisco IOS Command Reference Guides for the Catalyst 4500 Series Switch .
If a command is not in the Cisco Catalyst 4500 Series Switch Command Reference , you can locate it in
the Cisco IOS Master Command List, All Releases .
Checking Module Status
The Catalyst 4500 series switch is a multimodule system. You can see which modules are installed, as
well as the MAC address ranges and version numbers for each module, by entering the
show module
command. Use the mod_num argument to specify a particular module number and display detailed
information on that module.