PE-BCHL (PRI Endpoint Port)
Issue 5 October 2002
1439
555-233-119
Figure 48.
Common Progressions in Service States
PRI Endpoint Port Service States
The following table summarizes each of the different PRI Endpoint Port service
states that can result when the status pri-endpoint <extension> command is
issued. From the results of the status command, match the service state to the
corresponding column. Proceed down the column until an “X” is found. The left
column indicates possible reasons why the port is in this state, and the right
column suggests possible recovery mechanisms. If an alarm against PE-BCHL is
present, it is indicated below the “X.”
NOTE:
Refer to
‘‘Troubleshooting Features’’
in
Chapter 1, ‘‘Maintenance for CSI
systems’’
for a layered approach to the processing of PRI Endpoint
problems.
CRAFT BUSYOUT OF
SIGNALING LINK
"BUSYOUT LINK LINK-NO",
OR TRANSIENT STATE FOR
CRAFT-DEMANDED LONG
TEST OF THE PORT.
CRAFT RELEASE
OF SIGNALING LINK
IF D-CHANNEL
CONTROLLING THE
B-CHANNEL IS UP,
SEND A MESSAGE
REQUESTING
TRANSITION
TO IN-SERVICE
D-CHANNEL HAS BEEN
DOWN FOR AT LEAST
90 SECONDS.
FAILED TO
RECEIVE REPLY
FROM FAR END.
MTCE WILL
PERIODICALLY
TRY TO RESEND
THE MESSAGE
RECEIVED
ACKNOWLEDGEMENT
FROM THE FAR END
RECEIVED
ACKNOWLEDGEMENT
FROM THE FAR END
FAILED TO
RECEIVE REPLY
FROM FAR END.
MTCE WILL
PERIODICALLY
TRY TO RESEND
THE MESSAGE
ADMINISTER
B-CHANNEL AS
MEMBER OF A
PRI ENDPOINT
OUT-OF-
SERVICE
NEAR END
OUT-OF-
SERVICE
FAR END
OUT-OF-
SERVICE
FAR END
PENDING
IN-SERVICE
IN-SERVICE
MAINTENANCE
NEAR END
MAINTENANCE
FAR END
MAINTENANCE
FAR END
PENDING
IN-SERVICE
CRAFT RELEASE OF
A B-CHANNEL OR
NEAR-END LINK
PROBLEM (PI-LINK OR
SYS-LINK) CLEARS UP
IF D-CHANNEL
CONTROLLING THE
B-CHANNEL IS UP,
SEND A MESSAGE
REQUESTING
TRANSITION
TO IN-SERVICE
CRAFT BUSYOUT OF B-CHANNEL
BUSYOUT PORT/PRI-ENDPOINT,
LINK PROBLEM AT NEAR END
(PI-LINK OR SYS-LINK),
DS1 BOARD NOT INSERTED,
OR DS1 BOARD FAILURE.