8 Aviat Networks
Chapter 5. Eclipse Edge Commissioning and Troubleshooting
Confirming Link Protection for Edge
Before commencing:
• Check the protected link is operating normally:
• No alarm icons in the Portal status bar (green).
• No G.826 errors in the Performance screen.
• Determine the primary/secondary ODUs and their online status.
• For hot-standby and space diversity links the default configuration has the online
Tx function with the primary ODU (ODU1).
Preliminary
In the procedures provided:
A BER test can be applied using the PRBS function built into the DAC 16x module, or
an external BER tester.
Other procedures can be used. For example, the built-in PRBS functions can be
activated at both ends of a protected link to provide a both-way test on a trib (both
directions separately monitored).
Portal screens for local and remote terminals can be dragged to different parts of
your PC screen for easier management.
The test procedures described are based on default primary and secondary Tx online
settings, which has the primary ODU online transmitting.
Where the built-in PRBS Generation function is being used to check protection
switching:
• For each switch event that is not designed to be hitless, the Errored Second count
increments by 1, or depending on the counter time boundary relative to the event, a
maximum of 2. Refer to Switch Operation Test Measurement for Edge on
page 6.
• For most tests Available/Unavailable time should not change, and the Severely
Errored Second count will mirror the Errored Second count.
• Ensure the link is operating alarm-free, and that path conditions are normal.
• Use the System/Controls screen to view, and if necessary reset the online Tx ODU.
Hot-standby and Space Diversity for Edge
Tx switching is not hitless. Rx path switching is hitless.
Test procedures are provided for:
• Local alarm Tx switch: local Tx switch forced by local Tx alarm.
• Silent alarm Tx switch: local Tx switch forced from remote end by LOS (loss of
signal).
•Rx protection.
Local-alarm Tx Switching Procedure
The procedure requires withdrawal of the online Tx ODU cable.
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