[c-nsp] 10G SFP+ ASR9001 LOS
Tom Hill
tom at ninjabadger.net
Tue Apr 4 19:45:56 EDT 2017
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
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