Bug ID 621314: SCTP virtual server with mirroring may cause excessive memory use on standby device

Last Modified: Oct 16, 2023

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

Known Affected Versions:
11.5.4, 11.5.5, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 12.1.1, 12.1.2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5

Fixed In:
14.0.0, 13.1.0, 12.1.3.6, 11.6.4, 11.5.6

Opened: Oct 07, 2016

Severity: 3-Major

Related Article: K55358710

Symptoms

If a SCTP virtual server has high availability (HA) mirroring enabled, the send buffer on the standby may have extremely high memory usage until the connections close.

Impact

TMMs will have high memory usage on standby device.

Conditions

SCTP virtual server has mirroring enabled.

Workaround

Disable mirroring on the SCTP virtual server.

Fix Information

SCTP virtual server with mirroring no longer causes excessive memory use on standby device.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips