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Communication Manager Maintenance-Object Repair Procedures
2076 Maintenance Procedures for Avaya Communication Manager 3.0, Media Gateways and Servers
Incorrectly Connected Administered Fibers
Some physically connected fibers that do not match fiber administration can cause port network
problems that are not detected and alarmed by PNC tests. The symptoms may be many phone
calls not working correctly, and port network component alarms because of translation
mismatches.
This test is unable to detect when an SNI is connected to the same type of board (EI or SNI) as
administered, but is located in a different cabinet but the same carrier and same slot as the
administered fiber endpoint. Use list fiber-link to see the administered fiber endpoint.
This test can only detect if the fiber endpoint connected to the SNI is in a different carrier, slot
location than the administered fiber endpoint.
Incorrectly Connected Administered SNI-
to-EI Fibers
If the SNI is connected to the same type of fiber endpoint as the administered fiber endpoint, but
the location is the same as administered except for the cabinet, many phone calls will not work
correctly. Some phone calls will not go through and some phone calls will ring the wrong phone.
Use test led to check connectivity.
1. Run test led port-network on each administered port network and verify that the
LEDs on the correct port network are lit.
2. 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.
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-
to-SNI Fibers between Three Switch Nodes
If the system has more than 2 switch nodes, SNI-to-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, 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. Use status sys-link
to see the boards and fiber links in the path from an IPSI connected PN to a specific port
network. A specific SNI-to-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-to-SNI fiber connection to be used as a system-link is to physically
remove every SNI-to-SNI connection except the fiber link being tested at the distant switch
node by physically removing SNI boards in the distant switch node.
1. Use status sys-link to verify that this fiber selected for test is in the path to the PN
connected to the distant switch node that will be used for the LED test.