Avaya 03-300430 User Manual

b. Error Type 1: loss of continuity of Layer 1 to the far end. It is assumed that Layer 1 remains 

active, even when both B channels are idle.

This test determines whether Layer 1 is active or not. If Layer 1 is not active, the test 
attempts to activate it. If Layer 1 cannot be activated, the port is taken out of service, and 
the test fails.

c. Error Type 129: the far-end switch changed the ISDN service state, the trunk is out of 

service on the far end. This may be a temporary condition.

d. Error Type 257: the D channel failed at Layer 2. Expiration of this timer indicates that 

attempts to bring the failed link back into service have not succeeded and some recovery 
actions should be taken on the associated B channels. Upon expiration, associated 
in-service B channels are put in the out-of-service/far-end state. The timer is cleared when 
layer 2 is re-established.

e. Error Type 513: on-board hardware failure. The FIFO RAM buffers have overflowed, 

indicating a hardware problem. The circuit pack is having problems transmitting data to the 
packet bus.

f. Error Type 514: transmit FIFO Overflow - This error indicates that the circuit pack is having 

problems transmitting data to the TDM D channel. This error only 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 D channel (R6.2 and 
higher).

g. Error Type 769: the port is generating too many uplinks. The link is being suspended. If too 

many hyperactive events occur with a certain time, the port is alarmed and taken out of 
service.

h. Error Type 1025: an expired timer has created an unexpected event. The timer could be 

any of the following:

T3031

ISDN T3031 timeout

T3032

ISDN T3032 timeout

T305

ISDN T305 timeout

T3081

ISDN T3081 timeout

T3082

ISDN T3082 timeout

TL3

Status Inquiry

T304

Setup ACK

T310

Call Proceeding Receive

T313

Connect SEND