We have multiple ASR 920 routers. How do we check the light levels on SFP modules that support DOM?
Hi Julie,
If you purchased SFPs with DOM (digital optical monitoring) capabilities, you can use the command SHOW INTERFACE TRANSCEIVER to find the each device's transmit and receive levels.
http://www.cisco.com/en/US/docs/ios/interface/command/reference/ir_s4.html#wp1184714
and The following document outlines the transceivers that support the DOM capabilities.
http://www.cisco.com/en/US/docs/interfaces_modules/transceiver_modules/compatibility/matrix/OL_8031.html
Without DOM enabled transceivers, the only way to test the fibers is as described by rayframe1; with a light source and power meter.
http://www.exfo.com/Documents/TechDocuments/Specification_Sheets/Fiberbasix-50-angHR.pdf
Hope it Helps..
-GI
Rate if it Helps..
