ASR1002 transceiver Rx /TX Power Sensor

[148784]

Hello Everyone

I need your help

What is the command to validate subslot 0/1 transceiver 3 Rx and TX Power Sensor

Our monitoring system is detecting alarms about that

Thanks very much

[Georg Pauwen]

Hello,

try the command:

show interfaces diagnostics optics interface

[148784]

01#show interfaces diagnostics optics ?
% Unrecognized command

I try this:

01#show hw-module subslot 0/1 transceiver 3 status
The transceiver in slot 0 subslot 1 port 3
has been disabled because:
the port is in shutdown state
Module temperature = +24.878 C
Transceiver Tx supply voltage = 3321.7 mVolts
Transceiver Tx bias current = 16 uAmps
Transceiver Tx power = -15.6 dBm
Transceiver Rx optical power = -40.0 dBm

What is the threshold ?

Look at it

Transceiver Rx optical power = -40.0 dBm

Transceiver Tx power = -15.6 dBm

[Georg Pauwen · Accepted solution]

Hello,

the command:

show hw-module subslot 0/1 transceiver 3 idprom detail

should list the thresholds...

[serefay21]

Hi there, what was actually the reason for "Transceiver Rx optical power = -40.0 dBm " ? I am having the same issue. Even if the state of the port is down it show Transceiver RX optical power as -40dBm. Any thought appreciated!

[Giuseppe Larosa]

Hello @serefay21 ,

>> Transceiver Rx optical power = -40.0 dBm

it likely means no signal received like in your case. It can be seen as the lowest power level that can be detected = noise.

Hope to help

Giuseppe

[serefay21]

Hi Giuseppe, 

thanks for your reply first of all. I am actually disabling the connection port in one end and I can see that the Port stat on Cisco ASR Router is also, as expected, goes down. However my expectation is that there should not be any noise if the port is in down state. Why is it still sensing the channela nd (of course it will not get any signal since it is deliberately shut down). What my concern is whether this some sort of bug ? or the SFP is defect? or is it just a normal behaviour?. This is what I am trying to clarify. I am expecting that if a port is in down state, then why NMS is giving a mentioned health error.

Many thanks in advance!