Thanks for your reply. My HA still not working. For the L2 network i configured access port facing SRX control port. Below is the output from SRX.
> show chassis cluster interfaces
Control link status: Down
Index Interface Monitored-Status Internal-SA Security
0 em0 Down Disabled Disabled
> show chassis cluster status
Cluster ID: 1
Node Priority Status Preempt Manual Monitor-failures
Redundancy group: 0 , Failover count: 1
node0 1 primary no no None
node1 0 lost n/a n/a n/a
Any suggestion how should i tshoot?