Bug ID 1579441: Connection requests on rSeries may not appear to be DAG distributed as expected

Last Modified: Feb 11, 2025

Affected Product(s):
BIG_IP_NEXT(VE/HW) TMOS(all modules)

Known Affected Versions:
20.2.1

Opened: Apr 15, 2024

Severity: 1-Blocking

Symptoms

Connection requests on rSeries may not be distributed across TMM instances as expected. For example, TMM0 may appear to service more requests than other TMMs, when a round-robin even distribution across TMMs was expected. This may be due to the `port adjust` setting not having the default value of `xor5mid-xor5low`.

Impact

Connection requests may be unevenly distributed across TMMs, causing some TMMs to be under heavier load than other TMMs.

Conditions

Multiple TMMs on rSeries, where connection requests are not distributed across TMMs as expected.

Workaround

Adjust traffic patterns for load balancing, or tune DAG behavior with additional DAG configuration options to adjust assignment of connection requests to TMMs.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips