Cisco WS-C4003 Software Guide - Page 67
Checking Connectivity
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Chapter 4 Configuring Ethernet and Fast Ethernet Switching Configuring Ethernet and Fast Ethernet Ports Checking Connectivity Note For more detailed information on checking connectivity, see Chapter 19, "Checking Port Status and Connectivity." Use the ping and traceroute commands to test connectivity out Ethernet or Fast Ethernet ports. To check connectivity out a port, perform this task in privileged mode: Step 1 Step 2 Step 3 Task Command Ping a remote host that is located out the port you ping [-s] host [packet_size] [packet_count] want to test. Trace the hop-by-hop route of packets from the switch to a remote host located out the port you want to test. traceroute host If the host is unresponsive, check the IP address show interface and default gateway configured on the switch. show ip route 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) 78-12647-02 Software Configuration Guide-Catalyst 4000 Family, Catalyst 2948G, Catalyst 2980G, Releases 6.3 and 6.4 4-7
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