Design and implement Azure ExpressRoute Flashcards
key benefits of ExpressRoute
Layer 3 connectivity between your on-premises network and the Microsoft Cloud through a connectivity provider
Connectivity can be from an any-to-any (IPVPN) network, a point-to-point Ethernet connection, or through a virtual cross-connection via an Ethernet exchange
Connectivity to Microsoft cloud services across all regions in the geopolitical region
Global connectivity to Microsoft services across all regions with the ExpressRoute premium add-on
Built-in redundancy in every peering location for higher reliability
Co-located at a cloud exchange
If you are co-located in a facility with a cloud exchange, you can order virtual cross-connections to the Microsoft cloud through the co-location provider’s Ethernet exchange. Co-location providers can offer either Layer 2 cross-connections, or managed Layer 3 cross-connections between your infrastructure in the co-location facility and the Microsoft cloud.
Point-to-point Ethernet connections
You can connect your on-premises datacenters/offices to the Microsoft cloud through point-to-point Ethernet links. Point-to-point Ethernet providers can offer Layer 2 connections, or managed Layer 3 connections between your site and the Microsoft cloud.
Any-to-any (IPVPN) networks
You can integrate your WAN with the Microsoft cloud. IPVPN providers (typically MPLS VPN) offer any-to-any connectivity between your branch offices and datacenters. The Microsoft cloud can be interconnected to your WAN to make it look just like any other branch office. WAN providers typically offer managed Layer 3 connectivity.
Direct from ExpressRoute sites
You can connect directly into the Microsoft’s global network at a peering location strategically distributed across the world. ExpressRoute Direct provides dual 100 Gbps or 10-Gbps connectivity, which supports Active/Active connectivity at scale.
Local SKU
With Local SKU, you are automatically charged with an Unlimited data plan.
Standard and Premium SKU
You can select between a Metered or an Unlimited data plan. All ingress data are free of charge except when using the Global Reach add-on.
ExpressRoute circuit SKUs
Azure ExpressRoute has three different circuit SKUs: Local, Standard, and Premium.
Unlimited data.
Billing is based on a monthly fee; all inbound and outbound data transfer is included free of charge.
Metered data.
Billing is based on a monthly fee; all inbound data transfer is free of charge. Outbound data transfer is charged per GB of data transfer. Data transfer rates vary by region.
ExpressRoute premium add-on.
ExpressRoute premium is an add-on to the ExpressRoute circuit. The ExpressRoute premium add-on provides the following capabilities:
Increased route limits for Azure public and Azure private peering from 4,000 routes to 10,000 routes.
Global connectivity for services. An ExpressRoute circuit created in any region (excluding national clouds) will have access to resources across every other region in the world. For example, a virtual network created in West Europe can be accessed through an ExpressRoute circuit provisioned in Silicon Valley.
Increased number of VNet links per ExpressRoute circuit from 10 to a larger limit, depending on the bandwidth of the circuit.
ExpressRoute circuit ErGW3Az
Supports availability zones
Supports ExpressRoute FastPath
Allows for 5-Gbps of throughput
Minimizes costs
Bidirectional Forwarding Detection (BFD)
BFD is a configuration that must be enabled on the router to detect whether a link goes offline. This allows for a near instant failover.
Azure virtual WAN Standard SKU with secured hub
Supports ExpressRoute
Supports a Point-to-Site (P2S) VPN
Can restrict traffic by using Azure Firewall Manager
Minimizes costs
CIDR range option for VHub1 to address Point-to-Site (P2S) connections.
CIDR /24 is the minimum address space required to create a hub
