DEFINITY ECS Release 8.2 Maintenance for R8.2csi
555-233-119 Issue 1
April 2000
Maintenance Objects
3-715ISDN-PLK (ISDN-PRI Signaling Link Port)
3
The actual alarming level dep ends on the options chosen via the set
options command on the G3-MT terminal. ISDN-PRI Signaling Link Port
alarms are treated as Station alarms, and their d efault alarming option is to
downgrade all alarms to Warning. The value shown in the preceding table
indicates the normal, unfiltered case (option "y" on the

Set Options

form).
f. Bad DLCI error. This error occurs when a LAPD frame is rece ived across
the DS1 facility which contains a DLCI whic h does not have a valid entry in
the on-board translation memory. This error normally indic ates an
off-board problem usua lly related to a broken endp oint or a state
mismatch between a remote endp oint and the local c all processing
software. Maintenance will not start any testing or generate any alarms in
response to this error.
g. Receive FIFO Overflow error. This error occurs when the circui t pack
detects an overflow of its rec eive buffers. If it occurs freq uently, it may
indicate a LAPD parameter mismatc h between the two endpoints.
Maintenance does not start any testing or generate any alarms in
response to this error.
System Technician-Demanded Tests: Descriptions
and Error Codes
Always investigate tests in the order p resented in the table belo w when
inspecting errors in the sys tem.
NOTE:
The command line entry to test the ISDN-PLK MO is: test port PCSSpp (sh
or l), where ‘pp’ is ‘24’ for 24-channel i nterfaces, and ‘16’ for 32-ch annel
interfaces.
Signaling Link Board Check (#643)
This test checks the state of the UDS1 Interface c ircuit pack (TN464C or later)
transporting the ISDN-PRI Signaling Link.
Order of Investigation
Short Test
Sequence
Long Test
Sequence D/ND1
1. D = Destructive; ND = Nondestruc tive
Signaling Link Board Check (#643) X X ND