The goal of the Expereo SD-WAN Service is to provide the next generation of connectivity for Business. Expereo offers different vendor implementations under the name Expereo SD-WAN Management
Expereo supports the following Vendor Solutions:
Even though the various Vendor solutions differ in their individual approach, they are similar
in many aspects.
The Expereo SD-WAN Management Service aims to provide the following key features:
By the term Underlay Network, Expereo understands the access technology that is used at any Customer Location. In case of an Internet-only location, this will be provided by the Global Internet as a Service (GIaaS) Solution of Expereo.
The Expereo SD-WAN supports hybrid networking, this means that multiple Access Technologies can be utilized at the same time.
This creates an Access network technology independence, which offers a lower cost alternative (GIaaS) to the often premium-priced MPLS technology and can also facilitate replacing costly transport technologies.
The following Access technologies are currently supported:
Note: The Internet service needs to be provided on an unfiltered publicly reachable fixed IP address.
Examples of transport independence can be seen in Figure 5: Hybrid and Figure 6: Dual Internet
Figure 5: Hybrid illustrates the connection model in a Hybrid solution, where the customer has Internet Access and MPLS on a site. Both Connections can be utilized at the same time by the SD-WAN Tunnels.
Figure 6: Dual Internet illustrates the connection model in a dual Internet solution (service provider independent), where the customer is provided with resilient Internet Access by Expereo. The SD-WAN Tunnels can apply path optimization and load balancing depending on the vendor solution.
The XDN portfolio provides a Managed Edge device, that forms the demarcation point between Expereo and the customer. The same applies to the Expereo SD-WAN portfolio, where the SD-WAN functionality is being provided by the managed SD-WAN Edge device.
The Managed SD-WAN Edge functionality can be provided on either:
The Managed Edge Devices can also provide:
The LAN capabilities of the Managed Edge Devices, such as local routing or DHCP vary per vendor solution. All Edge Devices have a feature parity, independent of the location where they are installed, be it a remote Office, a data centre location, or a cloud location.
The Overlay Network removes the complexity of the different Underlay Network technologies. The Expereo SD-WAN Service connects enterprise locations, branch offices, data centres and cloud locations independent of distance in a way that allows improving the agility and performance of the enterprise WAN.
The Expereo SD-WAN Solution offers
Expereo SD-WAN uses the strongest available IPSEC encryption standards to securely transmit the traffic over the non-secure underlay networks. The Edge devices are hardened according to the industry standard specifications.
Service assurance is a critical part of the Expereo SD-WAN managed services. QoS performance, e.g., packet loss and latency, is measured over each SD-WAN tunnel in real-time. These measurements determine whether a WAN meets the performance requirements of an application, resulting in application-driven performance assurance. If any WAN meets these criteria, the application can be forwarded, provided no pre-existing policy disallows transmission over a particular WAN, e.g., only use MPLS VPN and not Internet.
Customer specific policies can also be considered when making forwarding (or blocking) decisions for the SD-WAN tunnels over each WAN. Policies can be based on each application-level classification (up to OSI Layer 7), an application’s QoS, or application grouping, e.g., real-time media or conferencing application. Policy enforcement considers an application’s QoS performance requirements, or an organization’s security or business priority policy requirements.
For example, a QoS policy may be set so Skype for Business packets are forwarded over any WAN if its QoS performance requirements, e.g., latency and packet loss, are met, so users get an acceptable quality of Experience (QoE). A security policy may be set so Skype for Business packets are sent over the MPLS VPN and not the Internet. A business priority policy may also be set so credit card payment transactions are sent ahead of any Skype for Business packets.
WAN Optimization can seemingly increase WAN bandwidth and QoS performance and/or WAN latency depending on the implementation. This can be accomplished by the means of data deduplication, data compression/data caching to minimize the amount of data transmitted over the WAN.
Methods of protocol spoofing / local acknowledgements can overcome packet size limitations, and protocol waiting times, and therefore increase the throughput.
Forward error correction (FEC) compensates for WAN packet loss by sending duplicate packets over multiple WANs and then reassembles the packets in the correct sequence at the receiving end. FEC enables SD-WAN overlay tunnels to provide essentially zero packet loss, a low Jitter by using lower cost, higher packet loss Internet broadband underlay networks.
Since WAN optimization is not required at all SD-WAN sites, it is often delivered as a value-added service.
A key feature of the Expereo SD-WAN Service is the Service Orchestration. Because of the Service Orchestration, the whole infrastructure becomes agile and adaptable without compromising on configuration consistency and reliability.
The SD-WAN Orchestrator simplifies and automates tasks such as adding, changing and deleting SD-WAN services without disrupting the overall service.
It also provides physical and/or virtual device management for all SD-WAN Edges and SD-WAN Gateways associated. This includes, but is not limited to, configuration and activation, IP address management, and pushing down policies onto SD-WAN Edges.
The SD-WAN orchestrator maintains connections to all SD-WAN Edges and SD-WAN Gateways to identify the operational state of SD-WAN tunnels across different WANs and retrieves QoS performance metrics for each SD-WAN tunnel. These performance metrics can then be used for customized reporting.
Xpertise removes the complexity from managing customer’s complete network lifecycle and enables their organization to achieve innovation with complete logistics project management for the SD-WAN deployments. Expereo provides a global footprint with exceptional depth and breadth of in-country solutions for access technologies, equipment and customer site professional services, ensuring delivery of technical, regulatory and quality standards across the globe removes the complexity from managing.
The Expereo SD-WAN service can be tailored to the technical requirements and preferences of the customer. For that reason, Expereo offers different vendor-based solutions under the umbrella of Expereo SD-WAN managed services.
Expereo works closely together with the customer to select the best fitting vendor.
To be able to design the solution in accordance with the customer requirements, Expereo needs to be made aware of all:
that are currently used or planned to be used, on all sites to be connected to the SD-WAN Service.