Command Reference Guide

262 ● ping 3Com Router 5000 Family and Router 6000 Family
Command Reference
A host sends an ICMP ECHO-REQUEST. If the connection to the destination network is
normal, the destination host will be able to receive the ICMP ECHO-REQUEST and
send an ICMP ECHO-REPLY packet back to the source host.
You can use the ping command to test network connectivity or line quality. Its
output includes:
■ Information on the reply to each ECHO-REQUEST, including data bytes, packet
sequence number, TTL, and the roundtrip time. If no reply is received upon
timeout, “Request time out” is displayed.
■ The final statistics, including the number of the packets sent and received, packet
loss ratio, roundtrip time in its minimum value, mean value and maximum value.
If network transmission is slow, you can appropriately extend the time to wait for
reply.
Related Command tracert