Bug ID 714848: OPT-0031 and OPT-0036 log DDM warning every minute when interface disabled and DDM enabled

Last Modified: Nov 07, 2022

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

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3,,,,,, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:

Opened: Apr 12, 2018

Severity: 3-Major


DDM transmit power too low warning continually appear in /var/log/ltm, and in SNMP traps. Messages appear similar to the following: DDM interface:3/1.0 transmit power too low warning. Transmit power(mWatts) 0.0001 0.0001 0.0001 0.0001 A single warning message is expected, not repeating messages.


There are multiple messages in /var/log/ltm, and SNMP DDM traps. There is no impact on traffic.


This occurs when all of the following conditions are met: -- The interface is disabled. -- DDM is enabled. -- OPT-0031 or OPT-0036.


There is no workaround other than to enable the interface or disable DDM.

Fix Information

DDM errors no longer continually appear on disabled interfaces containing OPT-0031 or OPT-0036.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips