Dark Fiber Testing and Debugging Process

Template to hold dark fiber debugging processs.

When a customer reports an issue with dark fiber we need to know what type of issue the customer is having.

1. Outage - no connectivity between sites.
   1. Is the outage affecting all fibers between a site or only specific fibers?
   2. Need to know which fibers?
2. Transmission occuring, but CRC errors on equipment.
   1. Is this occuring on all fibers between a site or only specific fibers?
   2. Is this both on the TX and RX sides of the circuit?
3. Transmission intermittent.
   1. Are errors occuring only intermittently.
   2. Is there an intermittent lack of connectivity? What time of day? Any pattern?
4. Light Level is low on fibers
   1. What is the db attenuation of the fiber strand that is having a problem?
   2. Is this occuring on all fiber strands?