The following table lists some hardware problems along with possible
solutions:
Problem
Solution
Noise on the line
Check the line for noise levels and, if necessary,
contact your leased line/telephone service.
Fault in the modem
Check your modems as in Hardware Problem 4,
and replace, if necessary.
Fault in cabling between
modem and DEC MicroServer
Use loopback tests and replace cable, if necessary.
Fault in DEC MicroServer
Contact Digital service representative.
4.
If the counter shows Frame too long error messages, change the buffer
length by issuing the following SNANCP command:
SNANCP> SET LINE
line-id BUFFER SIZE n
where n is the BUFFER LENGTH. This value should be the same as the
value of the MAXDATA parameter in the IBM system.
The problem might be a temporary one caused by extraordinary circumstances.
Monitor the problem line. Regularly clear the counters, and look at them again
approximately an hour later. If the overrun is consistently high, there might
be a problem in the DEC MicroServer. Contact service representative.
1–12 Solving DECnet SNA Gateway for Synchronous Transport Problems
