1. Private Network Laid Over ThinCPEs routing area related work
draft-dunbar-opsawg-private-networks-over-thin-cpe
Linda Dunbar, Lucy Yong, XiaoLin Song

3. More than SD-WAN Like SD-WAN But different from SD-WAN
IP tunnels are automatically established among Thin-CPEs,
But different from SD-WAN
there are interactions with the underlay network (even though the interaction to underlay network is transparent to users),  
there are gateways (for private networks) instantiated in the underlay network to establish secure connections between Thin-CPEs and the gateways, and
Virtual Functions instantiated in the underlay networks to guarantee policies on Security, QoS, and other Value Added service.

4. Key Differences from L3VPN, L2VPN
SD-WAN
L3SM
WAN/POP
site
site
L3VPN, L2VPN
SD-WAN
Provider network,
PE<-> CE protocol
PE <-> PE protocols
Number of VPNs are much larger, thousands or even 10s of thousands
Underlay network can be IP, MPLS, L3VPN, L2 or L0
No visibility to CE<-> PE, or PE<->PE protocol in underlay networks

5. Needed Work in Routing Area
Massive jungle of on the wire encaps
Lack of standardized control plane
For dynamic discovery between Overlay and the underlay
For controlling the desired policies and QoS
Fault isolation/identification (control plane, data plane, management plane)
Some of the protocol work described by applicable, such as:
Interface Characteristics, Relay Behavior, Interface Forwarding Algorithm, Router Discovery, Prefix Delegation and Autoconfiguration, Interface Route Optimization, etc. (not to say the protocols described are 100% correct & applicable).
Some items described in "draft-kanugovi-intarea-mams-protocol-01" are applicable too, such as
Access technology agnostic interworking
Independent Access path selection for Uplink and Downlink
IP anchor selection independent of uplink and downlink access
Adaptive network path selection
Configuring network middleboxes based on negotiated protocols
CE Based VPN?

6. Next Step: Solicit input, comments, and co-authors from the community
Is there any interest to work on this domain?

7. Suggestions?