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Communication Manager Maintenance-Object Repair Procedures
2294 Maintenance Procedures for Avaya Communication Manager 3.0, Media Gateways and Servers
i. Error Type 1537: the board received a bad Cyclical Redundancy Check (CRC) over the
D-Channel. This error is reported on a per-port basis. When the CRC errors exceed 5 within
15 minutes, the port is taken out of service for 5 seconds. If 5 more CRC errors are received
within 15 minutes of the first set of 5 errors, the port is taken out of service for 1 minute. If 5
more CRC errors are received within 15 minutes of the previous 5, the port is taken out of
service for 15 minutes. This error is most likely due to a problem with backplane wiring, a
noise source, or no termination (an open circuit). It usually does not indicate a problem with
the media module.
j. Error Type 1538: this error occurs when a frame with a bad CRC is received by the BRI
trunk board. This error only occurs on a system that switches the packet implementation of
the D-channel. This error indicates an off board problem related to the packet
implementation of the TDM D-Channel (R6.2 and later).
k. Error Type 2049: the Layer 2 Link Query failed. The test is repeated every 15 minutes until
it passes.
l. Error Type 2305: the Remote Layer 3 Query failed. The test is repeated every 15 minutes
until it passes.
m. Error Type 3073: a frame of information had to be repeated or deleted. Slips usually occur
when the received bit rate is not synchronized with the TDM Bus clock.
n. Error Type 3585: the media module detected an overflow of its receive buffers. This error
occurs only a system that switches the packet implementation of the D-Channel over the
TDM bus. This error indicates an on board problem related to the packet implementation of
the TDM D-Channel (R6.2 and higher).
o. Error Type 3586: each port can support up to three Terminal Endpoint Identifiers (TEIs).
Each channel on the port can request a TEI assignment from the switch if it supports
ISDN-BRI TEI assignment procedures. If switch services gets a request for a fourth TEI on
a port, it reports this event to maintenance software and initiates TEI check procedures on
the port. Check to see if the correct number of channels are administered for this port. The
user side supports automatic TEI assignment by the network. Both fixed and automatic TEI
assignment are supported on the network side.
p. Error Type 3587: service Profile IDentifier (SPID) value is invalid or is a duplicate of another
SPID that is already initialized at Layer 3 on the port. SPIDs are not used on the TN2185
media module. However there will be related events.
q. Error Type 3588: the board receives D-Channel data from the bus faster than it can
process the data. The FIFO RAM buffers overflowed. This error occurs occasionally due to
the statistical sizing of the buffers; however, frequent occurrences may indicate a LAPD
parameter mismatch between the two endpoints of a packet-switched connection. Run the
Long Test Sequence paying particular attention to the results of the Receive FIFO Overflow
Test (#625).
r. Error Type 3589: the BRI Port Local LAN Loop Around Test (#618) failed. Run the Long
Test Sequence and pay particular attention to the results of Test #618.