PCI FDDI Administrator's Guide

Troubleshooting PCI FDDI
Diagnostic Flowcharts
Chapter 3 97
• If not successful, try to establish an ftp to a remote host. Unlike
telnet, ftp does not use a pseudoterminal (pty) driver on your system.
This will determine if the pty is why telnet failed. If ftp is successful,
you should call HP to determine why you have a problem with pty.
• If ftp fails, check to see if TCP is installed on both hosts by verifying
the /etc/protocols file. Telnet and ftp work at the transport layer and
require TCP. If TCP is not installed, install now and repeat the
Transport Layer Tests.
• If TCP is installed on both hosts, telnet to another host and/or use
netstat(1M) to check for lost packets. If network is congested, you
may need to reconfigure network, otherwise call HP.