Bug ID 452482: HTTP virtual servers with cookie persistence might reset incoming connections

Last Modified: Oct 16, 2023

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

Known Affected Versions:
11.2.1, 11.3.0, 11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.6.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
13.1.0, 12.0.0, 11.6.1, 11.5.2, 11.4.1 HF9, 11.2.1 HF11

Opened: Mar 15, 2014

Severity: 4-Minor

Related Article: K16014

Symptoms

Incoming TCP connection to HTTP virtual server receives RST during 3-way handshake

Impact

TCP connection fails.

Conditions

Incoming connection matches existing cookie persistence record and would be persisted to a pool member whose connection limit has been reached.

Workaround

None

Fix Information

Cookie persistence records are ignored when the connection limit of the persisted pool member has been reached. This results in incoming connections to be offloaded to another pool member (if available).

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips