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Catalyst 4500 Series, Catalyst 2948G, Catalyst 2948G-GE-TX, and Catalyst 2980G Switches Software Configuration Guide—Release 8.2GLX
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Chapter 5 Configuring Gigabit Ethernet Switching
Configuring Gigabit Ethernet Ports
Checking Gigabit Ethernet Port Connectivity
Note For more detailed information on checking connectivity, see Chapter 20, “Checking Status and
Connectivity.”
Enter the ping and traceroute commands to test connectivity out Gigabit Ethernet ports.
To check connectivity out a port, perform this task in privileged mode:
This example shows how to ping a remote host and how to trace the hop-by-hop path of packets through
the network using traceroute:
Console> (enable) ping somehost
somehost is alive
Console> (enable) traceroute somehost
traceroute to somehost.company.com (10.1.2.3), 30 hops max, 40 byte packets
1 engineering-1.company.com (173.31.192.206) 2 ms 1 ms 1 ms
2 engineering-2.company.com (173.31.196.204) 2 ms 3 ms 2 ms
3 gateway_a.company.com (173.16.1.201) 6 ms 3 ms 3 ms
4 somehost.company.com (10.1.2.3) 3 ms * 2 ms
Console> (enable)
Task Command
Step 1
Ping a remote host that is located out the port that you
want to test.
ping [-s] host [packet_size] [packet_count]
Step 2
Trace the hop-by-hop route of packets from the switch
to a remote host that is located out the port that you
want to test.
traceroute host
Step 3
If the host is unresponsive, check the IP address and
default gateway that are configured on the switch.
show interface
show ip route
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