Hardware Problem 5
The line counter "Receive failures" shows errors.
Solutions:
The solutions outlined in this section cover possible hardware and software
problems.
1.
Use the following SNANCP command to determine the types of errors that
might be occurring:
SNANCP> SHOW LINE
line-id COUNTERS
If there are Receive failures, the display from this command includes the
following information:
n Receive failures, including:
CRC error
Receive overrun
Frame too long
where n indicates the number of errors.
2.
If the counter shows CRC (Cyclic Redundancy Check) errors, there are two
possible causes for the errors:
•
IBM test frames on the line can cause CRC errors. Ask your IBM
system programmer to check the line for test frames.
•
There might be a problem with the line or the modem. If you have
already verified that there are no IBM test frames on the line, call
your Digital service representative to report the problem as a hardware
problem.
3.
If the counter shows Receive overrun errors, several possible hardware
problems could cause this error. These hardware problems can cause
the number of Receive failures in the communications device to become
significantly larger than the number of data blocks received.
Solving DECnet SNA Gateway for Synchronous Transport Problems 1–11
