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Checking TX / RX optical power for Cisco IOS, IOS-XR, NX-OSFor checking transmission links, it is good to know how to find out the optical power for troubleshooting and making sure the desired or optimal range is meet. Here are the sample commands for checking the TX/RX optical power. IOS / IOS-XE If want to check TX & RX power for IOS based devices such as ASR1K ,e.g. interface GigabitEthernet 0/2/2,here’s how to do it:   IOS-router#show hw-module subslot x/x…

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