Basic Network Monitoring Features
18-2 Configuring Network Monitoring
Network Diagnostics
Fixed Switch network diagnostics provide for:
• Pinging another node on the network to determine its availability
• Performing a traceroute through the IP network to display a hop-by-hop path from the device
to a specific destination host
Use the ping command, in switch mode or in router privileged exec mode, to determine whether
the specified node is available.
C5(rw)->ping 10.10.10.1
10.10.10.1 is alive
Use the traceroute command, in switch mode or in router privileged exec mode, to display a
hop-by-hop path through an IP network from the device to a specific destination host. The
command in switch mode provides more optional parameters than the command in router mode.
Refer to the CLI Reference for your platform for details.
C5(rw)->traceroute 192.167.252.17
Traceroute to 192.167.252.17, 30 hops max, 40 byte packets
1 192.167.201.40 20.000 ms 20.000 ms 20.000 ms
2 14.1.0.45 40.000 ms 10.000 ms 20.000 ms
3 192.167.252.17 50.000 ms 0.000 ms 20.000 ms
Switch Connection Statistics
Switch connection statistics can be displayed for:
•ICMP
•IP
•TCP
•UDP
Use the show netstat command to display switch connection statistics. Use the stats option to
display statistics for all supported protocols.
The following example displays just the ICMP statistics.
C5(su)->show netstat icmp
ICMP:
89 IPv4 messages received
26 IPv4 echo requests received
45 IPv4 destination unreachable messages received
0 IPv4 destination unreachable messages received and socket found
45 IPv4 destination unreachable messages received and socket not found
0 IPv4 destination unreachable messages received with bad header code
0 IPv4 messages with hdrsize less than min hdrsize
0 IPv4 messages with bad checksum
0 IPv4 messages with hdrsize type unreachable or time exceeded
53 IPv4 messages sent
0 IPv4 messages not sent due to no memory available
0 IPv6 messages received
0 IPv6 messages received with error
0 IPv6 messages received with bad checksum
0 IPv6 messages dropped due to no memory available
0 IPv6 messages not sent due to no memory available
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