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<p class="MsoNormal"><span style="color:#1F497D">Cisco devices love to whinge about those things every 10 minutes, even if the device is disconnected (yay for -40 power warnings).
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">If you tail syslog, just grep –Ev a regex for it or setup your syslog application to filter with regex.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Be mindful: I had a bug where the logging discriminator feature just literally did not work for a few versions which stung us unexpectedly…that was a newly discovered one too.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Global config for the device (nb: IOS 15.x Catalyst switches):<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.5pt;color:black;mso-fareast-language:EN-AU">logging discriminator filterpwr msg-body drops /Te6\/[4-5]: (R|T)x.*-40.0 dBm/<br>
logging buffered discriminator filterpwr<br>
logging console discriminator filterpwr<br>
logging host #ipaddress# discriminator filterpwr</span><span lang="EN-US" style="font-size:12.0pt;color:black;mso-fareast-language:EN-AU"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I dug this up from when I was labbing it a while ago, it was working (on very new release code). Adjust the regex after the word “drops” as appropriate, but this should get you started
</span><span style="font-family:Wingdings;color:#1F497D">J</span><span style="color:#1F497D">. Check around their documentation for “logging discriminator” which may fill in any gaps you might have.<br>
<br>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Cheers,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Matt.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="mso-fareast-language:EN-AU">From:</span></b><span lang="EN-US" style="mso-fareast-language:EN-AU"> AusNOG [mailto:ausnog-bounces@lists.ausnog.net]
<b>On Behalf Of </b>Dino Sosic<br>
<b>Sent:</b> Wednesday, 27 July 2016 10:09 AM<br>
<b>To:</b> ausnog@lists.ausnog.net<br>
<b>Subject:</b> [AusNOG] Syslog buffer filter<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi guys,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Does anyone know how I can filter this from logs on my Cisco device (ASR920)<br>
<br>
<span style="font-family:"Courier New"">008480: Jul 27 2016 08:06:48 ACST: %SFF8472-3-THRESHOLD_VIOLATION: Te0/0/27: Rx power low warning; Operating value: -23.7 dBm, Threshold value: -23.0 dBm</span><br>
<br>
I am aware of the power problem with this particular SFP(it’s the distance), and I am not interested in that. I just want this to stop spamming and filtering my logs. Maybe with discriminators?
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Dino<o:p></o:p></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman",serif;mso-fareast-language:EN-AU">##################################################################################### Confidentiality and Privilege Notice This document is intended
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