For duplex configuration on Microsoft Azure, you must configure load balancer.
Before you begin
Before installing load balancer, install duplex Communication Manager on respective virtual machines to be included in load balancer rule.
Note:
If you install duplex Communication Manager on virtual machines after installing the load balancer, the installation fails as Communication Manager installer cannot reach repository servers because of load balancer rule.
Create a load balancer of Type=Internal and SKU=standard that has a static front-end IP address that matches the CM alias IP address.
Create a backend pool with the 2 Communication Manager virtual machine and use the eth0 IP address on each machine.
Create a TCP health probe using port 443 or 9968, use the minimum values of 5 seconds interval and 2 probes.
ADDITIONAL INFORMATION:
Note:
For the Communication Manager Duplex on AXP Private (Azure Cloud), use of load balancer for the eth0:0 alias IP address allocation requires the additional port 9968 to be opened in Communication Manager application.
Create a load balancing rule using the Front-end, back-end and probes defined above and select HA ports and Floating IP enabled.
