Bug ID 539832: Zebos: extended community attributes are exchanged incorrectly in BGP updates.

Last Modified: May 29, 2024

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

Known Affected Versions:
11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.6.0, 11.6.1, 11.6.2, 11.6.3,, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.1.0,, 11.5.7

Opened: Aug 13, 2015

Severity: 3-Major


1. BGP is not sending extended community attributes in BGP Updates to its neighbors in versions prior to 11.6.0. 2. BGP is unable to accept new BGP UPDATE messages that contain extended communities from its neighbors in version 11.6.0 and later. 3. On the sending neighbor, the route-map is reapplied to the prefix every time the connection is torn down by the neighbor, resulting in an ever increasing extended community list.


Loss of/incorrect info related to extended community attribute.


Configure BGP extended community attribute.



Fix Information

The BGP extended community attributes now work as expected.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips