Windows Azure Service Bus provides a highly robust messaging fabric hosted by Windows Azure that provides both relayed and brokered messaging. You can use the capabilities provided by Azure Service Bus to enable hybrid messaging scenarios between applications and services deployed both on-premise and in the cloud. For example, it is common in modern distributed systems to have clients on-premise and services hosted on a cloud provider or a partner data center, or the inverse: clients on a cloud provider or partner network with services hosted on-premise, and any combination thereof.
As services hosted on-premise are often hosted on NAT networks behind both hardware and software firewalls, it is not easy to consume services without investing in a hosting provider or standing up a DMZ, both of which can be expensive.
Azure Service Bus significantly reduces this friction by providing a relay between the client and service allowing you to host services and...