DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1456SNI-BD (SNI Circuit Pack)
9
3. Run
test led switch-node
on each administered switch node carrier and
verify that the LEDs on the correct carrier are lit.
4. If they are not, check the connectivity to the switch node carrier that does
not light the LEDs as expected.
Incorrectly Connected Administered SNI-SNI Fibers between 3 Switch
Nodes
If the system has more than 2 switch nodes, SNI-SNI fibers administered
between 2 switch nodes could be incorrectly connected to a third switch node.
This is a problem that could occur during installation or when inter-switch node
fibers are changed. For multiple fibers to a distant switch node (not the PPN
switch node), an incorrect connection would not appear as a problem unless this
fiber is used for a system-link to a port network connected to the distant switch
node. The
status system-link
command can be used to determine the boards
and fiber-links in the path from the PPN to a specific port network. A specific
SNI-SNI fiber connection must be in the system-link path to be checked with the
port network LED test.
One method to force an SNI-SNI fiber connection to be used as a system-link is
to physically remove all SNI-SNI connections except the fiber-link being tested at
the distant switch node by physical removing SNI boards in the distant SWItch
node.
1. Use the
status system-link
command to verify that this fiber selected for
test is in the path to the EPN connected to the distant switch node that will
be used for the LED test.
2. Run the
test led
sequence to a port network as described above to verify
this fiber connection.
3. Repeat this procedure for each of the other SNI-SNI fibers terminating on
this distant switch node.
Another method for testing multiple fiber connections to a distant switch node is
described below.
1. Use the
list fiber-link
command to determine the number of SNI-SNI
fibers that are administered and terminating on this switch node.
2. Run the
test led port-network
command on a port network connected to
this distant switch node and verify that the LEDs on the correct port
network are lit.
3. Use the status system-link command and select the active EI in the port
network connected to the distant switch node being tested. This display
will show the path from the PPN and the SNI-SNI fiber being used in this
path.
4. If they are not lit, check that the fiber connections to the port network are
consistent with the administered fibers (list fiber-link) that does not light
the LEDs as expected.
