Bug ID 1347825: Traffic group becomes active on more than one BIG-IP after a long uptime and long HA disconnection time

Last Modified: Jun 25, 2024

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

Known Affected Versions:
14.0.0, 14.0.0.1, 14.0.0.2, 14.0.0.3, 14.0.0.4, 14.0.0.5, 14.0.1, 14.0.1.1, 14.1.0, 14.1.0.1, 14.1.0.2, 14.1.0.3, 14.1.0.5, 14.1.0.6, 14.1.2, 14.1.2.1, 14.1.2.2, 14.1.2.3, 14.1.2.4, 14.1.2.5, 14.1.2.6, 14.1.2.7, 14.1.2.8, 14.1.3, 14.1.3.1, 14.1.4, 14.1.4.1, 14.1.4.2, 14.1.4.3, 14.1.4.4, 14.1.4.5, 14.1.4.6, 14.1.5, 14.1.5.1, 14.1.5.2, 14.1.5.3, 14.1.5.4, 14.1.5.6, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5, 15.1.1, 15.1.2, 15.1.2.1, 15.1.3, 15.1.3.1, 15.1.4, 15.1.4.1, 15.1.5, 15.1.5.1, 15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1, 15.1.8.2, 15.1.9, 15.1.9.1, 15.1.10, 15.1.10.2, 15.1.10.3, 15.1.10.4, 16.1.0, 16.1.1, 16.1.2, 16.1.2.1, 16.1.2.2, 16.1.3, 16.1.3.1, 16.1.3.2, 16.1.3.3, 16.1.3.4, 16.1.3.5, 16.1.4, 16.1.4.1, 16.1.4.2, 16.1.4.3, 17.0.0, 17.0.0.1, 17.0.0.2, 17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3

Opened: Sep 01, 2023

Severity: 3-Major

Symptoms

Traffic-groups become active/active after a long uptime interval and the HA connection is disconnected for longer than 30 seconds. Note: Uptime required to encounter this issue is dependent on the number of traffic groups: the more traffic groups, the shorter the uptime. For example: -- For 4 traffic groups, the interval is ~621 days. -- For 7 traffic groups, the interval is ~355 days. -- For 15 traffic groups, the interval is ~165 days.

Impact

Outage due to traffic-group members being active on both systems at the same time.

Conditions

-- Two or more BIG-IP systems defined in a device group for sync/failover. -- There is one or more traffic groups configured. -- The BIG-IP systems have a long uptime. -- The BIG-IP systems lose their HA connection for more than 30 seconds. -- The issue is more likely to occur when the watchdog daemon sod uptime, normally the same as system uptime, is above (6.8 years / number of traffic groups ).

Workaround

There is no workaround. Either all the BIG-IP units need to be rebooted on a regular interval, or the BIG-IP units need to be rebooted before they are disconnected from each other for a long time.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips