Last Modified: Jan 26, 2026
Affected Product(s):
F5OS F5OS-A, F5OS-C
Known Affected Versions:
F5OS-C 1.8.0, F5OS-C 1.8.1, F5OS-C 1.8.2
Opened: Mar 20, 2025 Severity: 3-Major
An example of the issue: Both portgroup 3/1 and 3/2 have state ddm rx-pwr instant val-lane4 = -40.0, but only one reports an alarm. There also seems to be a discrepancy regarding the alarms and the logs The alarm log from velos.log reports an error from Portgroup 3/1: fpgamgr[13]: nodename=blade-3(p3) priority="Warn" version=1.0 msgid=0x304000000000012 msg="DDM low warning set" PORTGROUP="3/1" ALARMTYPE="receive power" LANE1=-0.029600 LANE2=-0.008900 LANE3=-0.046900 LANE4=-0.400000. But the alarm is reported for Portgroup 3/2: # show system alarms ID RESOURCE SEVERITY TEXT TIME CREATED ------------------------------------------------------------------------------------------------------- 262401 Portgroup 3/2 ERROR Lanes: 4 Receiver power low alarm 2025-02-12 09:10:19.603552427 UTC
Inconsistent alarms may be reported for only one of the Portgroups when both Portgroups have low rx-power values.
Both interfaces enabled, but disconnected (no cables inserted). Affects both VELOS and rSeries (r5000, r10000, r12000)
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