Load Balancing For OIM servers in hyper V

Hi All,
I am very new to load balancing. I am trying to implement load balanceing in our current production setup.
Our current production setup is as below:
Virtualization Platform : Hyper V
Guest OS : RedHat Linux
OIM server : Two OIM servers in clustered mode without any load balancer
As we don't have any load balancers, transactions are not getting distributed between the two application servers. Which is impacting the performance.
First of all can we implement load balancer without impacting much to the application servers. What is the best load balancer that is suitable for our current setup.
It will be great help if you can share some links for the same.
Thanks,
Biswa

Hi All,
I want to mention few more details about our OIM implementation and what we are trying load balance.
SAP HRMS is the trusted source for OIM. We recieve IDOCs for user creation, modification and disable from SAP through JMS queue. OIM doesn't recieve any http transactions.
My understanding is we need to load balance JMS queue. Please confirm
Thanks,
Biswa

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Load Balancing For OIM servers in hyper V

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