ACC Release Notes for the B.03.01 Release

36
Advanced Communications Controller Release Notes for the B.03.01 Release
Patches and Fixes for this Version
49. Reference: TPO0h02280
A subchannel on the Z7330A ACC card
may occasionally stop receiving frames.
This will lead to different error
conditions depending on the protocol
being used. With X.25, a message in the
ACC log file reported: Link ZLU <#>
down: Exceeded N2 retransmit
limit.
The problem is caused by encountering a
rare hardware condition. The condition is
seen more readily at elevated
temperatures. This change is a
workaround to the problem.
50. Reference: TPO0h02292
In ttgen, the port and subchannel checks
for T1 and E1 ports are of no difference.
This is not correct and causes an illegal
configuration to be passed down to the
mux.
The required checks are overlooked and
not implemented in ttgen. The following
new checks are added:
For T1 port:
- valid subchannel numbers: 0..31
- valid timeslot numbers: 1..24
For E1 port:
- valid subchannel numbers: 0..31
- valid timeslot numbers: 1..31
Besides, equivalent checks should be
implemented in the firmware, so dynamic
port config can also be validated. This is
logged as DTS TPO0h02331.
Symptoms Defect / Fix