Port mointoring for active and standby mode

Hi Team,

 

I need to setup two servers which should be working in active and standby mode.Both servers are running on multiple ports(same ports running on both severs). Traffic should pass only primary node and if any one of the services goes down in primary node that particular service only should pass through secondary node remaining traffic should be in primary.

 

Could you please share the required configuration changes in LB to achieve this solutions.