Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
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, 12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 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:
13.0.0, 12.1.3.6, 11.6.3
Opened: Aug 26, 2016 Severity: 3-Major
SIP::persist needs improvement to support long-lived SIP sessions. Having a long timeout for persistence entries globally does not seem efficient for resource usage.
Smaller persist timeouts will result in messages being delivered to the wrong entity in the case of supporting long lived SIP sessions.
Efficiently using long-lived SIP sessions.
Set a higher persist timeout value globally. Note: This workaround might result in memory issues, depending on the BIG-IP system setup and traffic.
New SIP Persist iRule commands allow persistence key and an additional parameter to redefine lifetime of the persistence entry to any new value.
In previous versions, the SIP Persist iRule command allowed only the persistence key as the parameter to store the persistence entry in the table. New SIP Persist iRule commands allows persistence key and an additional parameter to define the lifetime of persistence entry. BIG-IP systems now can have better control on the persistence entry for long lived SIP sessions.