Bug ID 490329: Pluggable module LED status differences with only RX fiber of LC duplex cable connected

Last Modified: Nov 20, 2025

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
11.4.1

Opened: Nov 12, 2014

Severity: 5-Cosmetic

Symptoms

Pluggable module LED status differences with only RX fiber of LC duplex cable connected.

Impact

Front panel LED status of a SFP+ pluggable module interface may show link when only the RX fiber of LC duplex cable is connected.

Conditions

This occurs when viewing the LED status.

Workaround

Fully connect both RX and TX fibers of a LC duplex cable to a SFP+ pluggable module.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips