HP 3000 Manuals

Installing and Managing HP ARPA File Transfer Protocol Network Manager's Guide

What is PING/XL 

PING/XL is an interactive utility that can be used to confirm the
reachability of a remote node that supports the internet protocol (IP).
It can also be used to estimate round trip times before proceeding with
lengthy transactions.

PING/XL sends Internet Control Message Protocol (ICMP) Echo Requests to
the remote node once a second, and monitors the echo replies that arrive.

If you choose to send four or more bytes of data with the Echo Requests,
PING/XL displays the round trip times in milliseconds.  Since the echo is
performed at layer 3 of the ISO OSI model, PING/XL cannot be used to find
out if a particular application is available on the remote node, or to
estimate application-level round trip times.

MPE/iX 5.0 Documentation