Checking Port Status and Connectivity

CHAPTER6-1 Software Configuration Guide Release (31)SGOL-8881-016 Checking Port Status and ConnectivityThis 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 6-2 Checking Interfaces Status , page 6-2 Displaying MAC Addresses, page 6-3 Checking Cable Status Using TDR, page 6-3 Using Telnet, page 6-5 Changing the Logout Timer, page 6-6 Monitoring User Sessions, page 6-6 Using Ping, page 6-7 Using IP Traceroute, page 6-8 Using Layer 2 Traceroute, page 6-9 Configuring ICMP, page 6-11 NoteFor complete syntax and usage information for the switch commands used in this chapter, see the Cisco Catalyst 4500 Series Switch Command Reference and related publications at this location: the command is not found in the Cisco Catalyst 4500 Command Reference, you can locate it in the larger Cisco IOS library.

6-5 Software Configuration Guide—Release 12.2(31)SG OL-8881-01 Chapter 6 Checking Port Status and Connectivity Using Telnet Note TDR is a port test; the port can not handle traffic for the duration of the test (generally, 1 minute). Guidelines The following guidelines apply to …

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