Network Diagnostics

S- K- and 7100-Series network diagnostics provide for:

Use the ping command, in any command mode, to determine whether the specified node is available.

System(rw)->ping -c 10 127.0.0.1
PING 127.0.0.1 (localhost) 64 bytes of data.
64 bytes from 127.0.0.1 (localhost): icmp_seq=0 ttl=64 time=1.58 ms
64 bytes from 127.0.0.1 (localhost): icmp_seq=1 ttl=64 time=1.52 ms
64 bytes from 127.0.0.1 (localhost): icmp_seq=2 ttl=64 time=1.57 ms
64 bytes from 127.0.0.1 (localhost): icmp_seq=3 ttl=64 time=2.26 ms
64 bytes from 127.0.0.1 (localhost): icmp_seq=4 ttl=64 time=1.42 ms

Use the traceroute command, in any command mode, to display a hop‐by‐hop path through an IP network from the device to a specific destination host.

System(rw)->traceroute 192.167.252.17
traceroute to 192.167.252.17 (192.167.252.17), 30 hops max, 40 byte packets
  1  matrix.extremenetworks.com (192.167.201.40)  20.000 ms  20.000 ms  20.000 ms
  2  14.1.0.45 (14.1.0.45)  40.000 ms  10.000 ms  20.000 ms
  3  192.167.252.17 (192.167.252.17)  50.000 ms  0.000 ms  20.000 ms

Use the nslookup command, in any command mode, to query name servers, translating hostnames to IP addresses or IP addresses to hostnames.

System(su)->nslookup -x 127.0.0.1
Name: localhost
Address: 127.0.0.1