Performing The Loopback Test - HP 9000 Installation And Configuration Manual

Software Installation and Verification
Installation Verification
NOTE
44

Performing the Loopback Test

The loopback test is run by using the lb command of zmntr utility
program.
You should run both the internal and external loopback tests (as well as
either the RS-232 or V.35 test on 8-Channel interfaces). This will verify
the following:
• The ACC Mux card has been properly installed, and has been
recognized by the HP-UX system.
• The ACC driver software has been configured into the system
properly.
• The ZCOM Mux subsystem has been started up successfully.
• The ACC interface card, as well as the mux panel (or cabling) and the
mux ports within that panel can be communicated with (at least
those ports that have been specified in the test).
The .answ configuration files provided with the ACC product include the
appropriate configuration for using the zmntr loopback test. Refer to the
ACC Utilities Reference Guide for more information on zmntr, its
loopback test options, and the related configuration requirements.
The following two examples show loopback tests being performed on port
0 of mux 1 (Z7340A card).
In the first example, the port is not connected to a loopback hood. The i
test option is used which performs internal checks on the interface card
only. In this example, the interface card is good and all tests pass.
Example 1
ZMNTR> lb 1 0 i
Loopback test on Mux 01 port 0, zlu 0710
Loopback protocol functionality ..
RS232 RTS/CTS internal loopback ..
RS232 DTR/DCD internal loopback ..
ISCC data loopback test ..........
RS232 internal data loopback ...... OK
OK
OK
OK
OK
Chapter 2