Last Modified: Oct 06, 2020
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BIG-IP DNS, GTM
Known Affected Versions:
12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 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, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1
Opened: Apr 05, 2017
The DSCP value is not configurable for some types of traffic, which can lead to dropped traffic during adverse network conditions.
BIG-IP DNS incorrectly reports resources as unavailable because monitor traffic is dropped by the network due to congestion with unrelated traffic.
Under adverse network conditions, monitor traffic can be dropped by the network.
Setting the new db variable tm.egressdscp to a value other than the default value of 0, results in the system setting the DSCP value for outgoing traffic to the configured value.