Limitations and extensibility - Real-Time Communication on AWS

Limitations and extensibility

This design pattern is typically limited to within a single Availability Zone. It can be implemented across two Availability Zones, but with a variation. In this case, the Floating Elastic IP address is re-associated between active and standby node in different Availability Zones via the re-associate elastic IP address API available. In the failover implementation shown in Figure 4, calls in progress are dropped and endpoints must reconnect. It is possible to extend this implementation with replication of underlying session data to provide seamless failover of sessions or media continuity as well.