Difference between SESSION_STATUS_DISABLED and SESSION_STATUS_FORCED_DISABLED

Hi. I'm trying to use Java iControl API to control multiple versions of BIG-IPs, but I got some troubles.

 

I called LocalLB.PoolMember.set_session_enabled_state with set session_state = STATE_DISABLED to BIG-IP v10.1.0. After that, I called LocalLB.PoolMember.get_session_status and got session_status = SESSION_STATUS_DISABLED.

 

But in BIG-IP v10.2.4, I also called set_session_enabled_state with session_state = STATE_DISABLED, But I got session_status = SESSION_STATUS_FORCED_DISABLED by get_session_status API.

 

Did this difference cause by specification changes between BIG-IP 10.1.0 and BIG-IP 10.2.4 ? And how to get another status in each version, SESSION_STATUS_FORCED_DISABLED in BIG-IP v10.1.0, SESSION_STATUS_DISABLED in BIG-IP v10.2.4 ?

 

Thanks.