Bug ID 830797: Standby high availability (HA) device passes traffic through virtual wire

Last Modified: Nov 07, 2022

Affected Product(s):
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, 15.0.0, 15.0.1, 15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5

Fixed In:
16.0.0, 15.1.1, 15.0.1.1, 14.1.2.3

Opened: Sep 24, 2019

Severity: 2-Critical

Symptoms

Virtual wire is forwarding traffic on standby resulting in traffic loops and potential network outage.

Impact

Standby device is passing traffic, which may create traffic loops and bring down the network.

Conditions

-- High availability (HA) configured. -- Virtual wire configured.

Workaround

Do not configure virtual wire on standby devices.

Fix Information

Although you can create this configuration, the standby no longer forwards any traffic, which prevents the traffic loop and potential network outage.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips