Bug ID 475681: Changing virtual server type from Standard to Performance (HTTP) can make it impossible to connect to VIP

Last Modified: Apr 10, 2019

Bug Tracker

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

Known Affected Versions:
11.3.0, 11.4.1, 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, 11.6.0, 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, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1

Fixed In:
12.0.0, 11.6.3

Opened: Aug 15, 2014
Severity: 3-Major
Related AskF5 Article:
K17021

Symptoms

After changing TCP virtual server type from Standard to Performance (HTTP), it might no longer be possible to connect to previously working VIP. The connection to VIP will be silently dropped.

Impact

Might not connect to the VIP, and results in the message: 'Connection timed out.'

Conditions

This occurs when changing a Standard TCP virtual server type to Performance (HTTP).

Workaround

Change virtual server type from Standard to Performance (Layer 4), then change type from Performance (Layer 4) to Performance (HTTP).

Fix Information

Changing virtual server type from Standard to Performance (HTTP) now works as expected to connect to VIP.

Behavior Change