IP reservation will allow customers to reserve publicIP addresses and use them as VIPs. It enables scenarios where applications need to have static public IPaddresses or where applications need to be updated by swapping the reserved IPaddresses.
Instance-level Public IPs will allow customers toassign publically addressable IPs directly to VMs. While these are cannot bereserved at the moment, these will allow scenarios like running FTP services,monitoring VMs using their IPs etc.
Internal Load balancing (ILB) is a feature which willallow load balancing between VMs that don’t have public facing endpoints.Internal Load balancing enables load balancing among VMs with private IPaddresses. The internally load balanced endpoint will be accessible onlywith the customer’s virtual and on-premise networks (in the case of VNET) orjust within the cloud service (in the case of non-Vnet).
RegionalVirtual Networks - You can now create Virtual Networks (VNet) thatspan an entire region. While creating a new virtual network, you can refer tothe Region instead of an Affinity group. New services deployed into a RegionalVirtual Network can use any services/offerings (e.g. Internal Load balancing,Reserved IPs, Instance level Public IPs) available in the region. Prior to thisannouncement, VNets were bound to a scale unit, more precisely an Affinitygroup. An Affinity group is a grouping concept that references to a section ofthe datacenter or in other words certain number of servers. Since a VNet wasbound to an affinity group it was indirectly bound to a set of servers, andhence was not able to place deployments in servers outside of this scale unit.