juniper cluster configuration for both devices added to NPM

Hello, 

running into issues with getting both juniper cluster node0 and node1 into NPM.  

Cluster IP 10.1.1.1

Node 0 10.1.1.2

node 1 10.1.1.3

Cluster IP is added and node 1 IP,   but when failure happens node0 is not present.  

Any have experience and examples for adding juniper Cluster devices to NPM.

thanks

Chuck