Bug ID 802889: Problems establishing HA connections on chassis platforms

Last Modified: Jul 12, 2023

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

Known Affected Versions:
14.1.0,,,,,, 14.1.2,,,,,,,, 15.0.0, 15.0.1,,,,

Fixed In:
15.1.0, 14.1.3,

Opened: Jul 07, 2019

Severity: 3-Major


High availability (HA) mirroring does not work correctly. Some or all tmms may show up as closed when observing the show /sys ha-mirror stats. The ha_stat table shows a non-zero amount in the 'mismatch' stat: tmctl -d blade ha_stat -s ha_unit,tmid,active,mismatch ha_unit tmid mismatch ------- ----- -------- 0 [1.1] 0 1 [1.1] 132422 0 [1.0] 0 1 [1.0] 132411


The HA mirroring channel becomes disconnected and does not re-connect. In rare cases this might affect vCMP guests or other bladed platforms if HA packets are directed to the wrong blades, or during blade startup if the CMP state does not match between units.


-- VIPRION B4400 chassis platforms are commonly affected. -- HA mirroring is enabled.



Fix Information

HA connections on chassis platforms are correctly re-established after a peer mismatch.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips