DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126 Issue 4
June 1999
Maintenance Object Repair Procedures
9-1377SN-CONF (Switch Node Configuration)
9
Incorrectly Connected Administered Fibers
Some physically connecte d fibers that do not matc h fiber administration c an
cause port network prob lems that are not detected an d alarmed by PNC test.
The symptoms will usually be phone c alls not working correctly, and p ort network
component alarms bec ause of translation mismatches.
This test is unable to detect the case wh ere an SNI is connected to the same type
of board (EI or SNI) as administered but located in a different c abinet but the
same carrier and same slot as the ad ministered fiber endp oint. The administered
fiber endpoint c an be viewed with the list fiber-link c ommand. This test can only
detect if the fiber end point connected to the SNI is in a different carrier, slot
location than the administered f iber endpoint.
Incorrectly Connected Administered SNI-EI Fibers
If the SNI is connected to the same typ e of fiber endpoint as the administered
fiber endpoint, b ut the location is the same as administ ered except for the
cabinet, all phone c alls will not work correctly; some p hone calls will not go
through and some phone c alls will ring the wrong p hone.
The test led c ommand can be used in this case to chec k connectivity.
1. Run the test led port-network command on each adm inistered port
network and verify that the LEDs on the correct p ort network are lit.
2. If they are not lit, check that the fib er connections to the po rt network are
consistent with the administered fi bers (list fiber-link) that does not lig ht
the LEDs as expected.
3. Run test led switch-node on each administered switch nod e carrier and
verify that the LEDs on the correct carrier are lit.
4. If they are not, check the connec tivity to the switch node c arrier that does
not light the LEDs as expected .
Incorrectly Connected SNI-SNI Fibers between 3 Switch Nodes
If the system has more than 2 switch nodes, SNI-SNI fibers ad ministered
between 2 switch nodes c ould be inc orrectly connected to a third switch node.
This is a problem that could oc cur during installation or when inter-switch node
fibers are changed . For multiple fibers to a distant switc h node (not the PPN
switch node), an incorrec t connection would not appear as a prob lem unless this
fiber is used for a system-link to a p ort network connected to the distant switch
node. The status system-link command can be us ed to determine the board s in
the path from the PPN to a specific po rt network. A specific SNI-SNI fiber
connection must be in the system-link path to be chec ked with the port netwo rk
LED test.