In situations where network load or packet loss is too high, network cables or switch equipment might be defective in very rare cases.

As latency and packet loss increase, performance suffers.

The utcapture utility connects to the Sun Ray Authentication Manager and reports packet loss statistics and round-trip latency timings for each client connected to this server. See the utcapture man page to learn more about this command.

Table 5.4, “utcapture Output” describes the information that utcapture outputs.

The following command captures data every 15 seconds from the Authentication Manager running on the local host and then writes it to stdout if any change occurs in packet loss for a client.

% utcapture -h |

The following command captures data every 15 seconds from the Authentication Manager running on the local host and then writes it to stdout.

% utcapture -r > raw.out

The following command captures data every 15 seconds from the Authentication Manager running on server5118.eng and then writes the output to stdout if any change occurs in packet loss for the client with ID 080020a893cb or 080020b34231.

% utcapture -s sunray_server5118.eng 080020a893cb 080020b34231

The following command processes the raw data from the input file raw-out.txt and then writes to stdout the data only for those clients that had packet loss.

% utcapture -i raw-out.txt

The utquery command interrogates a client and displays the client's initialization parameters with the IP addresses of the DHCP services that supplied those parameters. This command can be helpful in determining whether a client was able to obtain the parameters that were expected in a particular deployment and in determining specific DHCP servers that contributed to the clients initialization. See the utquery man page to learn more about this command.