SLB Setup for Active/Active 12c configuration

Question

I am doing set up of 12c active/active configuration with SLB but I am not sure about the setup of SLB. I have defined following 3 VIPs behind the hardware load balancer
VIP1:8000 -secure console
VIP2:4900 -secure upload
VIP3:4899 -Agent registration
I have attached the certificate with the VIP1:8000, now I can access the URL using slbhost.domain.com but not able to secure the agent with below message:
==================================================================
2012-03-23 14:33:59,235 [main] ERROR agent.SecureAgentCmd main.212 - Failed to secure the Agent:
java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:351)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:213)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:200)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:529)
at java.net.Socket.connect(Socket.java:478)
at java.net.Socket.<init>(Socket.java:375)
at java.net.Socket.<init>(Socket.java:218)
at javax.net.DefaultSocketFactory.createSocket(SocketFactory.java:212)
at HTTPClient.HTTPConnection$EstablishConnection$2.run(HTTPConnection.java:4268)
at HTTPClient.HttpClientConfiguration.doAction(HttpClientConfiguration.java:708)
at HTTPClient.HTTPConnection.doAction(HTTPConnection.java:5379)
at HTTPClient.HTTPConnection$EstablishConnection.run(HTTPConnection.java:4254)
==================================================================
Now my OMS server is not able to listen the other OMS host agent when I am trying to add another OMS for active/active agent.
I am not sure if my SLB configuration is correct, do I need to define 3 different VIPs for all 3 ports or single VIP with both the OMS hosts:port combination added.
I am not sure about the SLB and port configuration for OMS. If somebody has done SLB setup can you please share his experience of how to do the setup and secure the agents.
It seems after SLB setup my agents is not able to connect with the oms.

Answer 1

Thanks Loc,
Yes I have secured the agent but still getting the same message. I am using Netscaler for VIP configuration and donot fit with pool concept defined in the documentation.
I can just define one slb host and add all oms hosts:ports to the same slb but after securing the slb and agents, it does not fit secure the agent so when I try to add additional oms it says second oms host not managed.
I am using below configuration:
SLB hostname: slbhost.domain.com
host1:secure upload port:4900
host1:secure console port:8000
host1:agent registration port :4889
host2:secure upload port:4900
host2:secure console port:8000
host2:agent registration port :4889
I cannot create multiple pools in my setup just can create one slbhost.domain.com and assign all hosts:port combination to that.
Thanks
Amit