[j-nsp] Power issues on 10Gig link

[Julien Goodwin]

On 24/01/14 00:14, Ali Sumsam wrote:
> Hi All,
> 
> I am using a SFP-10GBase-ER for my Cisco3750X for a 10gig link going to a
> Juniper MX5-T router (10GE XFP)
> 
> 
> I am receiving following logs on my Cisco3750X.
> 
>  %SFF8472-5-THRESHOLD_VIOLATION: Te1/1/2: Rx power low alarm; Operating
> value: -21.3 dBm, Threshold value: -20.0 dBm.
> 
> No logs on Juniper.

You can, and probably should, log this as you would traffic levels via
SNMP, at least for longer haul optics.

> 
> Does this mean I have to increase the power on the interface?
> Or is there anything else I need to look at?
> 
> Following are the readings from my Juniper router.

Those are the thresholds, not the actual power levels involved, what's
the full output from "show interfaces diagnostics optics"

>  Laser rx power high alarm threshold       :  1.2589 mW / 1.00 dBm
>     Laser rx power low alarm threshold        :  0.0158 mW / -18.01 dBm
>     Laser rx power high warning threshold     :  1.0000 mW / 0.00 dBm
>     Laser rx power low warning threshold      :  0.0199 mW / -17.01 dBm
> 
> 
> Regards,
> 
> *Ali Sumsam  - *eintellego Networks Pty Ltd
> Senior Network Engineer
> ali at eintellegonetworks.com ; www.eintellegonetworks.com
> 
> Phone: 1300 239 038; Cell +61 (0)450 609 592 ; skype://sumsam.ali80
> 
> facebook.com/eintellegonetworks ;  <http://twitter.com/networkceoau>
> linkedin.com/in/alisumsam
> 
> 
> The Experts Who The Experts Call
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> 


-- 
Julien Goodwin
Studio442
"Blue Sky Solutioneering"

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