Bug ID 448632: 200 OK not forwared when dialog-aware is enabled.

Last Modified: Sep 13, 2023

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

Known Affected Versions:
10.2.4, 11.0.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.5.1 HF1, 11.6.1 HF1, 11.5.1 HF2, 11.6.1 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, 11.5.1 HF10, 11.5.1 HF11, 11.5.2 HF1, 11.6.2 HF1, 11.5.3 HF1, 11.5.3 HF2, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.1.0

Fixed In:
10.2.4 HF8

Opened: Feb 11, 2014

Severity: 2-Critical

Related Article: K16411

Symptoms

When message flow is: 1. INVITE/180/200/ACK call from client to server 2. in-dialog re-INVITE from server to client INVITE/100/200/ACK 200 OK response message not forwarded.

Impact

200 OK not forwarded for INVITE and re-INVITE scenarios occasionally.

Conditions

In the SIP profile, dialog-aware is enabled.

Workaround

There is no workaround for this issue.

Fix Information

Fixed the race-condition occurring when 2 response messages are processing dialog lookup.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips