The document discusses the challenges of WAN management, including high costs and poor service quality associated with MPLS and dedicated circuits, and introduces SD-WAN as a solution that simplifies WAN infrastructure and improves application performance. It highlights the growing adoption of SD-WAN in various industries, projecting significant market growth through 2021 and beyond. Additionally, it introduces BD-WAN, a blockchain-based approach to WAN management, emphasizing its advantages such as pay-per-use billing and enhanced security.

1. WAN Problems
MPLS
Public
Internet
Wireless
Dedicated
Circuits
Metro ECorporate
Office
Data Center
Data Center
Branch
Office
Branch
Office
Branch
Office
Branch
Office
Branch
Office
Branch
Office
WAN CAPEX Problems
• MPLS and dedicated circuits are expensive!
• Routers are expensive!
• Truck rolls are expensive!
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WAN OPEX Problems
• Site by site management is expensive!
• Site by site monitoring is expensive!
• Traffic analysis is expensive!
WAN Service Problems
• Poor traffic analytics
• Poor security
• Poor service classification

2. SD-WAN Solution
Corporate
Office
Data Center
Data Center
Branch
Office
Branch
Office
Branch
Office
Branch
Office
Branch
Office
Branch
Office
MPLS
Public
Internet
Metro E
Wireless
Dedicated
Circuits
Dialup
SD-WAN
Controller
SD-WAN at Its Most Basic:
• Virtualizes (aggregates) the WAN
infrastructure
• Applies centralized policy and configuration
control
• Enables single-point control of WAN traffic
• Eliminates the need for site-by site policy
configuration
• Offers better visibility into application traffic
As of March 2017, over 3,000 paying SD-WAN
customers, over 80% in production.
“Retail and financial services are the markets
that have most aggressively adopted this
technology.”
Source: Gartner, June 2017

3. Business Benefits of SD-WAN
For the User:
• Fast (zero-touch) provisioning
• Reduced truck rolls
• Reduced operational complexity
• Cheaper components
• More efficient WAN utilization
• Universal traffic policies
• Better application WAN performance
• Improved application availability
• Improved application visibility
• Improved application differentiation
• Improved security, micro-segmentation
• Improved business agility and scalability
• Better cloud integration
For the Service Provider:
• New line of revenue
• Virtualized CPE & network functions
• Managed services
• Cloud integration
• Vendor independence for end users
• Already strong adoption
• CenturyLink (Versa)
• AT&T (VeloCloud)
• Masergy
• Verizon (Viptela)
• GTT (VeloCloud)

4. SD-WAN Market Projections
SD-WAN sales will grow from $225M in 2015 to $1.19B by end of 2017 to $8.05B by 2021
Source: IDC, “Worldwide SD-WAN Forecast, 2017-2021,” August 2017
Spending on SD-WAN products will grow from $129M in 2016 to $1.24B in 2020
Source: Gartner, “Market Guide for WAN Edge Infrastructure,” March 2017
The SD-WAN market will be at $9.378B by 2022
Source: Research and Markets, ”SD-WAN Market (2016-2021)”, March 2017
By the end of 2019, 30% of enterprises will have deployed SD-WAN technology
in their branches
Source: Gartner, “Predicting SD-WAN Adoption,” December 2015

5. Problems for SD-WAN
•Security
•Vendor diversity
•Architectural diversity
•Flat-fee monthly billing
• Whether you use the service or not
•Less than dynamic deployment of new services

6. What is BD-WAN?
Blockchain-Defined Wide Area Networks
• A token-based approach to orchestrating SD-WAN
• On-premise units use crypto tokens to virtually pay for services they use
BD-WAN Components:
• BD-WAN Controller
• BD-WAN Units (CPEs)
• Global Blockchain
- OpenCT platform
- Connects controller and units to OpenCT blockchain
• BD-WAN Secure Cloud

7. Benefits of BD-WAN
• Trusted per-usage billing
• Verified and hard-coded over the blockchain
• Pay only for what you consume
• Establish and tear down logical and physical circuits on demand
• No flat fee
• Unlock new services on the fly
• Integration with legacy technologies
• Creative features
• Inter-domain Traffic Engineering via blockchain, for instance
• Full visibility over all transport facilities
• Bring public cloud services, content services seamlessly to customers’ doorsteps
• A fully secure, immutable control and record of the WAN ecosystem