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DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-153BRI-BD/LGATE-BD (ISDN-BRI Line Circuit Pack)
10
k. A critical failure has been detected in the Packet Bus interface of the
circuit pack. This failure may be due to either a Packet Bus fault or an
on-board fault. If the Packet Bus is alarmed, refer to the "PKT-BUS (Packet
Bus)" section and Chapter 9, "Packet Bus Fault Isolation and Correction"
for recommended repair procedures. The probability of this error being
related to Packet bus problems increases with the number of ISDN-BRI
circuit packs displaying this error.
If the Packet Bus is not alarmed, reset the circuit pack via the busyout
board PCSS and reset board PCSS commands. If the Circuit Pack
Restart Test (#594) passes, then the on-board circuitry is healthy. Retire
the alarm via the test board PCSS long clear command. If the Circuit
Pack Restart Test (#594) fails, replace the circuit pack. If the problem
persists after complying with the above instructions, then follow normal
escalation procedures.
l. These errors are not service-affecting. No action is required. These errors
are reported by the circuit pack when it receives a bad control channel
message from the switch. The auxiliary data identifies the following error
events:
1794 Overflow of Packet Bus transmit buffers has occurred.
1795 Circuit pack cannot find end of frame when transmitting to
Packet Bus. Clear the alarm via the following commands:
busyout board PCSS, reset board PCSS, test board PCSS
long clear, release board PCSS. If the error recurs within 10
minutes, then replace the circuit pack.
2306 This error occurs when the circuit pack detects an error in a
received frame from the packet bus. These errors are most
likely caused by a packet bus problem, but may be due to a
circuit pack fault.An invalid Link Access Procedure Data
(LAPD) frame error occurs if the frame contains a bad
Cyclical Redundancy Checking (CRC), is greater than the
maximum length, or violates the link level protocol.When bus
parity errors are reported, the LANBIC Receive Parity Error
Counter Test (#595) should be performed to determine if the
condition had cleared. Refer to the "PKT-BUS (Packet Bus)"
Maintenance documentation to determine if the problem is
isolated to this circuit pack or if the problem is caused by
Packet Bus faults.
4096 Bad major heading
4097 Bad port number
4098 Bad data