12-22-2011 07:24 AM - edited 03-07-2019 04:01 AM
I noticed one of two links (Te11/7) in a port-channel went down and upon issuing a show interface transceiver detail I see the following below. Would that indicate an issue with the transceiver itself or maybe just a cable? Unfortunately the data center is remote location from where I am so can not physically be there to test myself.
High Alarm High Warn Low Warn Low Alarm
Current Threshold Threshold Threshold Threshold
Port (milliamperes) (mA) (mA) (mA) (mA)
---------- ----------------- ---------- --------- --------- ---------
Te11/1 8.0 -- N/A N/A N/A N/A
Te11/2 7.9 -- N/A N/A N/A N/A
Te11/3 7.9 -- N/A N/A N/A N/A
Te11/4 8.0 -- N/A N/A N/A N/A
Te11/5 9.6 -- N/A N/A N/A N/A
Te11/6 7.9 -- N/A N/A N/A N/A
Te11/7 25.2 -- N/A N/A N/A N/A
Te11/8 8.3 -- N/A N/A N/A N/A
Optical High Alarm High Warn Low Warn Low Alarm
Transmit Power Threshold Threshold Threshold Threshold
Port (dBm) (dBm) (dBm) (dBm) (dBm)
---------- ----------------- ---------- --------- --------- ---------
Te11/1 -2.6 2.9 -1.0 -7.3 -11.3
Te11/2 -2.2 2.9 -1.0 -7.3 -11.3
Te11/3 -2.6 2.9 -1.0 -7.3 -11.3
Te11/4 -2.7 2.9 -1.0 -7.3 -11.3
Te11/5 -2.5 2.9 -1.0 -7.3 -11.3
Te11/6 -2.2 2.9 -1.0 -7.3 -11.3
Te11/7 -14.3 -- 2.9 -1.0 -7.3 -11.3
Te11/8 -2.6 2.9 -1.0 -7.3 -11.3
And the show int
Te11/7 Primary Etherchann notconnect 1 full 10G 10Gbase-SR
Te11/8 Primary Etherchann connected trunk full 10G 10Gbase-SR
And the show etherc summ
2 Po2(SU) LACP Te11/7(D) Te11/8(P)
12-22-2011 03:52 PM
Usually when the optic goes bad you have connectivity or you don't. So I would replace the fiber patch cord first before replacing the optic
HTH
12-22-2011 09:36 PM
If it's in a managed data center, I'd have remote hands service remove, clean, and reseat the fiber jumper (including cleaning the transceiver port) on Te11/7. A dirty connection and/or loosely seated jumper is the most likely problem.
If you're not familiar with optical connections and their care, please refer to:
https://www.cisco.com/en/US/tech/tk482/tk876/technologies_white_paper09186a0080254eba.shtml#intro
Hope this helps.
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