1. What is SD-WAN?

SD-WAN is a software defined approach to managing the Wide Area Network (WAN). By introducing SDN technology into WAN, SD-WAN creates a cloud-based service that can be used to connect enterprise networks, data centers, Internet applications, and cloud services across a wide geographic range. The typical feature of SD-WAN service is the “cloudification" of network control capability through software, supporting the opening of network capability that can be perceived by applications.

2. The Traditional WAN
In tradition enterprises interconnection scenarios, enterprises realize interlinking of cross-region organizations (branches) through WAN. Typically, enterprises purchase SDH/MSTP/OTN/MPLS private lines provided by CSP to construct a WAN so that multiple branches can access the headquarters/data center networks and then access the Internet via headquarters or data center networks. In the traditional enterprise network WAN interconnection scenarios, the network structure of enterprises WAN is relatively quarantined from the internet. Key applications and information data are usually stored in private data center networks, WAN bandwidth requirements are small, and service changes are significant.

However, with the gradual deepening of enterprises digital transformation, a series of external business and technical factors such as cloud computing, NFV and NaaS continue to emerge, which has a profound impact on the business model and network architecture of traditional enterprise WANs. Traditional enterprise WANs are facing a series of new problems and challenges.

3. Novel Intelligent Private Line -- FiberHome SD-WAN Solution

Facing such problems, the FiberHome SD-WAN solution addresses the current IT challenges therefore it is designed to fully support applications based on-premise data centers, public or private clouds and SaaS services while providing the highest quality of performance.

• Intelligent Routing: The application level based intelligent uplink selection implements comprehensive path tuning based on dimensions such as DPI, application SLA, and bandwidth utilization to ensure the transmission quality of critical applications.
• Cost Reduction: FiberHome SD-WAN solution reduces WAN lines lease、capex and operating expenses.
• NaaS (Network as a Service): User-based network resources such as the Internet, private lines, and MPLS are used to carry data
• Automatic Management & Control: Zero-contact provisioning (ZTP). Centralized control management based on SDN can reduce the commissioning time of nodes and save operation and maintenance costs.
• Extreme User Experience: Virtual security elements are used to protect against vulnerabilities, anti-DDOS attacks, viruses, and URL filtering policies. Providing enterprise-level network security and enhancing user experience through network visualization and high HA reliability.

4. FiberHome SD-WAN solution：Classic Scenarios

1) HQ & Branch interconnection: Networking via Internet 4G or 5G, no private line

• Automatic deployment of remote devices, fast service commissioning
• WAN + wire/Wi-Fi access network in one device
• Utilizes Internet or 4G line networking, reducing line costs
• Realizing multi-tenants on WAN line, one line as several private lines
• Full encryption, data security
• Router, firewall, IPS, URL filtering integrated in one device.
• Centralized management, simple operation, and maintenance, reduce management costs

2) Enterprise applications cloud upload: Uploading enterprises applications on the cloud, local connection to multiple egress lines.

• Different paths can be designated to different applications to achieve internet access. Internet access can be achieved via local access or centralized access via HQ.
• The controller dynamically detects performance changes in each application on each line and automatically switches exits when the line deteriorates.
• Router, firewall, IPS, URL filtering integrated in one device.

3) Large branch interconnection：Interconnection of large branches, headquarters, and campus networks by utilizing private lines and internet as an egress.

• Automatic deployment of remote devices, fast service commissioning
• Multiple line choices, improving WAN bandwidth, reducing line costs
• Application identification: Dynamically switching lines based on application performance changes to improve service experience
• Realizing multi-tenants on WAN line, one line as several private lines
• Full encryption, data security
• Router, firewall, IPS, URL filtering integrated in one device.
• Centralized management, simple operation, and maintenance, reduce management costs

4) Date Center interconnection：Enterprise IDCs, three-layer WAN interconnection between data centers.

• Hybrid networking: Bare fiber +Internet, Private line + Private line, Private line e +Internet
• Multiple line choices, improving WAN bandwidth, reducing line costs
• Line redundancy switching, high availability
• Application identification: Dynamically switching lines based on application performance changes to improve service experience
• Full encryption, data security
• Centralized management, simple operation, and maintenance, reduce management costs

Technology is the driving force for digital transformation. Fiberhome has been committed to achieving breakthroughs and innovations in SDN technology for many years.
With FiberHome SD-WAN solution, the full potential of enterprises productivity can be fully released.