HA (Active-Standby) with R2600 and BIG-IP i2600

Hi, 
According to this Article from F5 : https://my.f5.com/manage/s/article/K000138273#:~:text=High%20availability%20is%20not%20supported%20between%20tenants%20on%20rSeries%20and%20iseries.

HA between rSeries tenants and iSeries is NOT supported. 

I haven't tried this before but but I think it will not work with you.

Successful BIGIP HA requires identical platforms in most cases