what is the best way to configure a proxy load-balancer?

[Qingshan Xie <xieq_49@xxxxxxxxx>]

Hello Team, 

    Our proxy load-balances two members showed as below.  How to configure the probe to probe each of them and failover if one member is down?  I think I may need to configure "ProxySet nofailover=Off" explicitly. Is "nofailover=Off" the default? Also, is there any other or better options?  Can someone shed some lights on it?

Thanks, Q.Xie

### xx -- Infrastructure Instance

<Proxy balancer://xx>

BalancerMember http://<instance1>

BalancerMember http://<instance2>

</Proxy>