Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

AlexS_yb's avatar
AlexS_yb
Icon for Cirrocumulus rankCirrocumulus
Aug 09, 2023

ACCESS::session sid fails some times

Hi I have something like this if { ( [ACCESS::session exists] ) } {   set un_ec_sid [ACCESS::session sid]   some other stuff } and I get in /var/log/ltm session ID lookup failed - Expired (lin...
apm irule
devops
Paulius's avatar
Paulius
Icon for MVP rankMVP
Aug 09, 2023

AlexS_yb I think you might have to specify it this way.

[ACCESS::session exists sid]
AlexS_yb's avatar
AlexS_yb
Icon for Cirrocumulus rankCirrocumulus
Aug 09, 2023

Hi

 

https://clouddocs.f5.com/api/irules/ACCESS__session.html

 

ACCESS::session exists
ACCESS::session exists [-sid <sid>]

if i use the later I would need to use access::session sid to get it 🙂

I was thinking if I can use MRHSESSION cookie as a equivilant to access::session sid