Agilent Technologies E4406A VSA Intermittent Response, Using the LAN to Control the Analyzer

Models: E4406A VSA

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Intermittent Response

Programming Fundamentals

Using the LAN to Control the Analyzer

Check that the hostname 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 analyzer, starting with the your workstation. Ping each gateway, then attempt a ping of the remote file server.

If the analyzer still does not respond to ping, then you should suspect a hardware problem with the analyzer. To check the analyzer performance, refer to "Verify the Analyzer Performance" in this chapter.

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 analyzer 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 analyzer. To check the analyzer, refer to "Verify the Analyzer Performance" later in this chapter.

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 -rBypasses 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-(231-1)).

 

If count is not specified, ping sends packets until

 

interrupted.

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Chapter 2

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Agilent Technologies E4406A VSA manual Intermittent Response, Using the LAN to Control the Analyzer