Bug ID 451843: Standby BIG-IP system may fail to bridge network packets destined for traffic group MAC masquerade address.

Last Modified: Apr 10, 2019

Bug Tracker

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

Known Affected Versions:
11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.5.4, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9

Fixed In:
11.6.0

Opened: Mar 11, 2014
Severity: 3-Major
Related AskF5 Article:
K15602

Symptoms

BIG/IP fails to bridge packets when in a traffic group layout in Standby mode, and the system is configured for using MAC masquerade.

Impact

Packet loss may occur for network packets that are destined for the affected traffic group's MAC masquerade address. As a result of this issue, you may encounter the following symptoms: -- After failover, the standby unit fails to bridge the network packets destined for the affected traffic group's MAC masquerade address. -- When performing a tcpdump on the affected interface, you may observe packet loss. Network services that use the affected traffic group may not be available.

Conditions

This issue occurs when all of the following conditions are met: -- You are running the BIG-IP 2000/4000 series platforms. -- You have configured the traffic group to use a MAC masquerade address. -- Following a failover event, the standby BIG-IP system continues to receive network traffic.

Workaround

None.

Fix Information

Standby BIG-IP system no longer fails to bridge network packets destined for traffic group MAC masquerade address.

Behavior Change