Bug ID 1329853: Application traffic is intermittent when more than one virtual server is configured

Last Modified: Feb 11, 2025

Affected Product(s):
BIG_IP_NEXT(CM) TMOS(all modules)

Known Affected Versions:
20.2.0, 20.2.1

Opened: Aug 11, 2023

Severity: 2-Critical

Symptoms

After deploying an application containing multiple virtual servers, only one of the virtual servers responds to clients. In the Central Manager GUI, one virtual server is marked as red and the other is marked as green, even though you can ping all of the pool members for each of the virtual servers.

Impact

The application will deploy without error even if an IP address/port conflict occurs, and traffic will be disrupted to one or both of the virtual addresses.

Conditions

-- The application contains multiple virtual servers -- The virtual addresses for each of the virtual servers is identical and the port is identical Alternatively, you could encounter this by deploying two different applications where the virtual address and port are identical.

Workaround

Assign different virtual addresses and/or virtual ports for different application services. If any two existing applications has same listeners defined, you can change the data by adding unique listeners and re-deploy.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips