To run the executor loopback test, enter the following command at the NCP
prompt:
NCP> LOOP EXECUTOR [
parameter] [...])
For example,
NCP> LOOP EXECUTOR
If this test fails, there is a problem with the DECnet software in your local
node. Ask the DECnet system manager to verify that DECnet is correctly
installed and currently active.
If this test is successful, run the circuit level loopback test to further isolate
your problem.
2.1.3 Circuit Level Loopback Test
Use this test to check the communications device on the DECnet side of the
Gateway-ST node.
To run the circuit level loopback test, you need OPER privileges. If the circuit
is in the ON state for DECnet, then by default service is enabled. If you want
to verify that service is enabled, issue the following command:
NCP> SHOW CIRCUIT
circuit-id CHARACTERISTICS
If the service is not enabled, enter the following commands:
NCP> SET CIRCUIT
circuit-id OFF
NCP> SET CIRCUIT
circuit-id SERVICE ENABLED
If the service is enabled, enter the following command:
NCP> LOOP CIRCUIT
circuit-id NODE gateway-node-name
For example, enter the following command:
NCP> LOOP CIRCUIT UNA-0 NODE GWY
If this test fails, ask your Digital Customer Service representative to run
diagnostics on the device to ensure that it is properly installed.
2.2 SNANCP Loopback Tests
The SNANCP loopback tests check the link from the Gateway-ST to the SNA
network. The tests described in this section are:
•
Controller loopback test:
Checks the communications device on the Gateway-ST.
•
Cable loopback test:
2–8 Using Loopback Tests
