Azure Route Server Description
Azure Route Server allows network appliances to dynamically exchange route information with Azure virtual Networks. Configure your network appliance and Azure ExpressRoute or VPN gateways so that they automatically receive the latest route information via Azure Route Server, instead of manually contacting each network. Azure Route Server can be used to enable dynamic routing instead of static routing between your gateways and network appliances in Azure. Azure Route Server exchanges routes using Border Gateway Protocol (BGP), a standard routing protocol. Azure Route Server can be used with existing deployments and new deployments. It supports any network topology such as hub-and-spoke, full mesh or flat virtual networks.