SD-WAN Managed Services are a specific use case for a MEF Third Network service using overlay networking technologies to deliver agile, assured and orchestrated application-driven connectivity services. Also, SD-WANs can operate over Internet access connections, enabling off-net sites to be quickly added to the SD-WAN without establishing interconnect agreements with off-net access providers.
As described in MEF White Paper: MEF 3.0 SD-WAN Services, SD-WANs have the following key characteristics:
- Provide a secure, IP-based virtual overlay networks that typically uses IPSec tunnels over Internet or MPLS underlay networks.
- Are transport-independent of the underlying network, operating over any type of wireline or wireless access network.
- Provide service assurance of each SD-WAN tunnel.
- Provide application-driven packet forwarding, performing application-level classification (up to OSI Layer 7) at the customer premises.
- Provide high availability through multiple WANs, supporting packet forwarding over one or more WANs at each site.
- Use policies to make application forwarding (or blocking) decisions for SD-WANs tunnels over each WAN.
- Achieve service automation via centralized management, control, and orchestration of SD-WAN tunnels with automatic configuration of SD-WAN customer premises equipment.
- Often deliver WAN optimization as a value-added service.
In the Managed Hybrid/Internet WAN use case, the Service Provider manages the SD-WAN on behalf of the Subscriber. There can be multiple active links in addition to the backup link. Those multiple links can be private to the Subscriber, hybrid private + Internet or Internet only. Also, the links can be sourced from a combination of Service Provider, third party Operator or the Subscriber.
In the Managed Off-Net to On-Net use case, the Service Provider manages the SD-WAN on behalf of the Subscriber in order to achieve OTT from off-net sites to on-net sites. Single or dual Internet links are supported, as well as Internet + Partner Private.
In the Peering Across Providers use case, the SD-WAN Access Provider peers with other Service Providers for global access and reachability.
PUBLISHED
Not a required MEF-SDCP Exam Study Reference
1 Comment
Kirby Russell
Managed Hybrid/Internet WAN
The two clouds illustrated belong to two different operators. The link between these two operator clouds are Network-to-Network Interfaces (NNIs)
Managed Off-Net to On-Net
Consider showing the additional LSO reference interfaces used for partner-to-partner (SONATA and INTERLUDE)
Peering Across Providers
Attachment required.