Thursday, August 29, 2019

Cisco: Low Optical Transmit Power

Does this point to an issue with an SFP?

We have a 4500-x vss stack, through which runs the heartbeat for a bunch of vrrp groups upstream, both routers have been going active due to loss of heartbeat.

One of the switch uplinks has a tx power of -10db on the switch, but router upstream is showing healthy rx signal of -5db



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