Programming instructions

Getting Started
Using LAN
Chapter 1 17
Table 1-12 Ping Responses
Normal Response
for UNIX
A normal response to the ping command will be a total of 9 or 10
packets received with a minimal average round-trip time. The
minimal average will be different from network to network. LAN
traffic will cause the round-trip time to vary widely.
Normal Response
for DOS or Windows
A normal response to the ping command will be a total of 9 or 10
packets received if 10 echo requests were specified.
Error Messages If error messages appear, then check the command syntax before
continuing with troubleshooting. If the syntax is correct, resolve the
error messages using your network documentation or by consulting
your network administrator.
If an unknown host error message appears, try using the IP address
instead of the hostname. Also, verify that the host name and IP
address for the signal generator have been registered by your IT
administrator.
Check that the hostname and IP address are correctly entered in
the node names database. To do this, enter the nslookup
<hostname> command from the command prompt.
No Response If there is no response from a ping, no packets were received. Check
that the typed address or hostname matches the IP address or
hostname assigned to the signal generator in the System
Utility >
GPIB/RS-232 LAN > LAN Setup
menu.
Ping each node along the route between your workstation and the
signal generator, starting with your workstation. If a node doesn’t
respond, contact your IT administrator.
If the signal generator still does not respond to ping, you should
suspect a hardware problem.
Intermittent
Response
If you received 1 to 8 packets back, there maybe a problem with the
network. In networks with switches and bridges, the first few pings
may be lost until the these devices ‘learn’ the location of hosts. Also,
because the number of packets received depends on your network
traffic and integrity, the number might be different for your
network. Problems of this nature are best resolved by your IT
department.