Bug ID 802889: Problems establishing HA connections on chassis platforms

Last Modified: Jan 13, 2021

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
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, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.0.1.4

Fixed In:
15.1.0, 14.1.3, 14.1.2.8

Opened: Jul 07, 2019
Severity: 3-Major

Symptoms

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

Impact

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.

Conditions

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

Workaround

None.

Fix Information

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

Behavior Change