Using the HP DTC 16RX Manager

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Checking that tftp is installed and operational

The tftp daemon is responsible, among other things, for downloading DTCs. If

tftp is not running, the HP 9000 host cannot respond to a DTC download request.

1 Check that tftp is properly installed and operational as described in chapter 3.

2 Consult the tftp man page for information on how to use tracing on tftp and

look at the trace files to find the problem.

3 Contact your system administrator if you cannot solve the problem.

Checking that the Internet Services software is operational (HP 9000

connections)

The DTC uses the Telnet and TCP/IP protocols to establish terminal and device

connections from the DTC to HP 9000 destination hosts. Therefore, the Internet

Services must be correctly installed and operating on HP 9000 hosts.

Details of Internet Services operations and troubleshooting are beyond the scope of

this manual. However, correct operation of Telnet services on the HP 9000 can be

veriﬁed as follows.

1 Use the ps -ef command to make sure the inetd daemon is running. The

inetd daemon spawns the telnetd daemon.

2 From the host, attempt to establish a Telnet connection to your own node by

typing the telnet command at the shell prompt:

telnet myhostname

where myhostname is the node name or IP address of your own node.

3 If you suspect problems with the Internet Services on your node, check with your

system or network administrator.

Checking DTC code version compatibility

While it is not necessary that the DTC’s code (stored in “ﬂash EEPROM”) be of the

same version as the DTC Manager software, the DTC must be conﬁgured in the

same DTC code version on the server. You can verify the DTC code version on the

server with the rdtclist -d command and the available DTC code versions with

the rdtcver command. The code version that is currently running on the DTC unit

is displayed at the top of the Network Management screen when the terminal is

connected to the DTCs diagnostics port.