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

Forum Discussion

sonu_kumar4's avatar
sonu_kumar4
Icon for Altostratus rankAltostratus
Jun 14, 2018

VCMP Guests HA pair with diffrent software code

Hello Guys, I need your urgent suggestion on following scenario. We already have one 5250v LTM appliance running with software code : VCMP Host BIGIP-11.5.3.0.0.163 , VCMP Guests :- BIGIP-11.6.0.0.0....
LTM
security
TMOS
tatmotiv's avatar
tatmotiv
Icon for Cirrostratus rankCirrostratus
Jun 18, 2018

Device group members (vCMP guests) must run the same version, otherwise they will not be able to failover (config sync is possible for small deviations, though).

 

vCMP host versions MAY differ from each other since the vcmp hosts are configured (and run) as standalone units as you noted correctly. It is not recommended though.

 

There are certain restrictions concerning the vcmp host/guest software compatibility which you can find in this solution guide: https://support.f5.com/csp/article/K14088

 

Anyway, I would suggest upgrading at least the guests to a newer version. 11.6.0 is out of support for quite a while by now - see https://support.f5.com/csp/article/K5903