Managed service that peers over BGP with network virtual appliances in a VNet and installs the learned routes on the VMs. It works purely in the control plane, so traffic never passes through it.
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Terms in this definition
- OVER
Gives a T-SQL window function its window: PARTITION BY, ORDER BY and, if wanted, a ROWS or RANGE frame. Rankings and running totals can then be worked out while every row is kept.
- BGP
Dynamic routing protocol used with both ExpressRoute and VPN connections. On ExpressRoute private peering it is the only way to exchange routes, including a 0.0.0.0/0 default route for forced tunnelling.
- VNet
A private network belonging to a single subscription and region and covering all of that region's availability zones. A VM can only use a VNet located in the same region.
- Virtual machines
Infrastructure-as-a-service compute giving complete control of the operating system, making it a fit for lift-and-shift moves and for software relying on OS-level pieces like COM.
- Control plane
Management layer used to create, configure and remove resources, as distinct from the data plane where they are used. Azure Resource Manager fills this role for Azure, and in AKS Azure operates the Kubernetes control plane on your behalf.
Related terms
- Active-active VPN gateway
Configuration where tunnels run on both gateway instances, and each instance has a Standard static public IP of its own. Azure Route Server branch-to-branch transit needs this mode plus ASN 65515.
- Branch-to-branch
Optional Azure Route Server feature, disabled by default, that passes routes among NVAs and the VPN and ExpressRoute gateways in its VNet, enabling transit between ExpressRoute and site-to-site VPN.