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Cisco Bug: CSCvn66653 - MDS9148S very high SFP temperature alarms

Last Modified

Mar 16, 2020

Products (1)

  • Cisco MDS 9000 Series Multilayer Switches

Known Affected Releases

6.2(27) 7.3(0)D1(1) 7.3(0)DY(1) 8.1(1) 8.1(1a) 8.1(1b) 8.2(1) 8.2(2) 8.3(1) 8.3(2)

Description (partial)

MDS 9148S shows very high SFP temperature alarms. This happens when using a unsupported SFP.
The following logs are found in show logging log (SFP temperature can vary):

MDS9148S# show logging log
2018 Dec  3 13:29:39 MDS9148S %USER-3-SYSTEM_MSG: lc_port_cfg: (line 609):SFP in port '1' reported temperature alarm. SFP temperature = '1275 C', threshold '78 C'  - lc_port_cfg

Applies only to MDS 9148S switch, release 8.1(1) or 8.2(1). 
Has occurred only with non-supported SFPs.
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