Avaya 03-300430 User Manual

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.

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.

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.