ACC Release Notes for the B.03.01 Release

30
Advanced Communications Controller Release Notes for the B.03.01 Release
Patches and Fixes for this Version
31. Reference: TPO0h01894
Loopback test on Z7330A and Z7300A
cards may sometimes fail.
The relays used to connect the network
and loopback lines on the E1/T1 cards
take a finite time to switch. The loopback
test can sometimes be too fast for the
relays and the test can fail.
32. Reference: TPO0h01913
During a card restart, the following
message is logged for a ZLU:
zcom 00207 ZLU 3 Set terminal
parameters failed with error:
Protocol not loaded.
After the card restart processing
completes, all ZLUs mentioned by the
above message will be unusable (hung).
This problem occurs when a ZLU has
been dynamically created but has not yet
been configured with a zcntl request to
set the terminal parameters, and the card
is restarted (either through a firmware
failure or user initiated action). Part of
the restart processing is to issue a set
terminal parameters request on every
ZLU that is defined. In this case, the
terminal parameter data is all NULLs
(since the user has not configured it yet).
This results in the firmware failure and a
protocol not loaded error. Note that
part of the terminal parameter data is
which protocol to use.
The ZCOM_PTDRST_INT flag is added
to the physical terminal to control
whether a Set Terminal Parameters
request is sent to the card. When a ZLU
is dynamically created, the flag is no
longer set in the Physical Terminal Table.
After a successful zcntl() request to set
the terminal parameters, this flag is
automatically set. This change prevents
the problem from occurring.
Symptoms Defect / Fix