Bug ID 839401: Moving a virtual-address from one floating traffic-group to another does not send GARPs out.

Last Modified: Nov 07, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP All(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, 15.0.0, 15.0.1, 15.0.1.1, 15.0.1.2, 15.0.1.3, 15.1.0, 15.1.0.1

Fixed In:
16.0.0, 15.1.0.2, 15.0.1.4, 14.1.2.5

Opened: Oct 16, 2019
Severity: 2-Critical

Symptoms

Gratuitous ARPs (GARPs) are not sent out when moving a virtual-address from one floating traffic-group to another (e.g., from traffic-group-1 to traffic-group-2).

Impact

Application traffic does not immediately resume after the virtual-address is moved. Instead, the surrounding network devices have to ARP out for the IP address after reaching a timeout condition.

Conditions

-- Moving a virtual-address from one floating traffic-group to another. -- The traffic-groups are active on different devices.

Workaround

After moving the virtual-address, disable and then re-enable the ARP setting for the virtual-address. This forces GARPs to be sent out.

Fix Information

GARPs are sent out as expected.

Behavior Change