Cisco Bug: CSCur84243 - WS-X4640-CSFP-E ports (Tx) are disabled on start-up
Feb 12, 2018
- Cisco Catalyst 4500 Series Switches
Known Affected Releases
15.1(2)SG4 15.2(3)E 3.6(6.0)
Symptom: In Cisco Catalyst 4506-E, 4507R-E, 4507R+E,4510R-E, and 4510R+E chassis with WS-X4640-CSFP-E line cards, random ports are disabled in the transmit direction, when the switch is booted-up. The following message is observed: %SFF8472-5-THRESHOLD_VIOLATION: Gix/x: Tx power low alarm; Operating value: -40.0 dBm, Threshold value: -13.0 dBm. Conditions: This problem is seen on Cisco Catalyst 4506-E, 4507R-E, 4507R+E,4510R-E, and 4510R+E chassis when they are fully populated with WS-X4640-CSFP-E line cards, running cat4500e-universalk9.SPA.03.04.04.SG.151-2.SG4.bin or cat4500e-universalk9.SPA.03.06.00.E.152-2.E.bin. Sometimes this issue is observed when two or more WS-X4640-CSFP-E Line cards are loaded in the chassis.
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