[c-nsp] 10G SFP+ ASR9001 LOS

[Tom Hill]

On 04/04/17 12:48, Florian Lohoff wrote:
> Are there more debugging possibilities to find the cause for
> the laser shutdown? I still think the SFP is faulty but
> that means the whole lot is broken in some respect.

I assume you've tried the basics?

 1. Cross-connect cable cleaned end-to-end

 2. Swap for new optic (yes, you have)

 3. Tried a different port?

I'm curious; when the LOS happens, what are the Tx/Rx SnR values?

You've stated that the optic is shutdown at present, so I'd assume that
-40dBm Tx is only as a result of that, not a symptom. Can you elaborate
on the symptoms in terms of Tx/Rx figures, and/or if there are any
excessive errors/discards before the LOS?

Have you spoken to the upstream to ask if their monitoring has a poor Rx
value?

What's the full port config on your side? Scrub the identifying details
if necessary. :)

HTH,

-- 
Tom