User's Manual
DEFINITY ECS Release 8.2 Maintenance for R8.2csi 
555-233-119  Issue 1
April 2000
Maintenance Objects 
3-241ATM-TRK (Circuit Emulation Service Circuit Pack) 
3
s. Error Type 3841: the ATM-TRK circuit pack received an unrecognized 
message from the switch and responded with an inconsistent down-link 
error message. 
1. Do nothing. This error does not affect service.
t. Error Type 3842: LANHO Receive FIFO Overflow error; the packet bus is 
delivering data to the ATM-TRK circuit pack faster than the circuit pack 
can distribute it to the endpoint. 
1. Do nothing. The circuit pack can recover by itself.
u. Error Type 3999: circuit pack sent a large number of control channel 
messages to the switch within a short period of time.
System Technician-Demanded Tests: Descriptions 
and error codes
Always investigate problems in the order presented. When you clear one of the 
error codes associated with a given test, you clear errors generated by other 
tests in the testing sequence. If you clear errors out of order, you can lose 
important information.
If Then
Error Type 1538 is also 
present 
Circuit pack is taken out of service 
If Error Type 1538 is not 
present
Circuit pack is 
not
 taken out of service, 
but has generated 50% of the messages 
necessary to be considered hyperactive. 
■ This may be normal during heavy 
traffic.
■ If the error is logged during light 
traffic, it may indicate a problem with 
the circuit pack or the equipment 
attached to it.










