Technical data

Programming Fundamentals 28
Agilent N8201A Performance Downconverter Synthetic Instrument Module, 250 kHz to 26.5 GHz 613
If there is no response, try typing in the IP address with the ping command, instead of using
the host name. Check that the typed address matches the IP address assigned in the
System, Config I/O menu, then check the other addresses in the menu.
Check that the host name and IP address are correctly entered in the node names database.
If you are using a UNIX environment, ping each node along the route between your
workstation and the instrument, starting with the your workstation. Ping each gateway,
then attempt a ping of the remote file server.
If the instrument still does not respond to ping, then you should suspect a hardware
problem with the instrument.
Intermittent Response If you received 1 to 8 packets back, there is probably a problem
with the network. Because the number of packets received depends on your network traffic
and integrity, the number might be different for your network.
Use a LAN analyzer or LAN management software to monitor activity and determine where
bottlenecks or other problems are occurring. The instrument will still function, but
communications over the LAN will be slower.
On a single-client/single-server network, the most likely cause of intermittent response to
an echo request is a hardware problem with the LAN module installed in the PC, the cable,
or the instrument.
The Standard UNIX PING Command Synopsis ping [-r] [-v] [-o] host
[packetsize] [count]
Description The ping command sends an echo request packet to the host once per
second. Each echo response packet that is returned is listed on the screen, along with the
round-trip time of the echo request and echo response.
Options and Parameters -r
Bypasses the routing tables, and sends the request directly to the host.
-v Reports all packets that are received, including the response packets.
-o Requests information about the network paths taken by the requests and responses.
host The host name or IP address.
packetsize The size of each packet (8 bytes - 4096 bytes).
count The number of packets to send before ending ping (1-(2
31
-1)). If count is not
specified, ping sends packets until interrupted.