Maintenance Objects
1436
Issue 5 October 2002
Alarming Based on Service States:
A PRI Endpoint Port B-channel is alarmed with a WARNING if it is placed into a
Maintenance/Far-End or Out-Of-Service/Far-End state. While in such a state, the
port is unusable for calls to the terminal adapter. However, the user can still use
the other remaining ports in the PRI Endpoint to make calls to and from the
terminal adapter. When a WARNING alarm is raised, the status pri-endpoint
<extension> command should be used to determine the exact state of the port.
Other alarms can be diagnosed by using the short and/or long test sequences.
Note that a PRI Endpoint Port B-channel can be placed into a Far-End Service
State either by direct action of the far-end terminal adapter or by inaction of the
far-end terminal adapter. For example, if they do not respond to a Remote Layer 3
Query (see Test #260 for ISDN-PRI Signaling Link Port), the associated PRI
Endpoint Port B-channels are placed into the Maintenance/Far-End service state.
A PRI Endpoint Port is a port on a UDS1 interface circuit pack. Therefore, this port
depends on the health of the UDS1 interface circuit pack for proper operation (see
Figure 47
). As noted earlier, a PRI Endpoint Port B-channel also depends on an
ISDN-PRI Signaling Link Port D-channel (ISDN-LNK) to carry the signaling traffic.
If there is a problem with the ISDN-PRI Signaling Link Port, the PRI Endpoint Port
is affected. The ISDN-PRI Signaling Link Port, in turn, depends on the PKT-INT
(Packet Interface).
Figure 47.
PRI Endpoint Port Interactions [INTEL]
DATA
PE-BCHL
PE-BCHL
ISDN-LNK
(PORT 24)
SIGNALING
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TERMINAL
ADAPTER
UDS1
INTERFACE
CIRCUIT
PACK
(TN464C)
PROCESSOR
(TN773)
PI
CIRCUIT
PACK
(TN765)
TDM
BUS
(PORT 23)
(PORT 1)
DATA