The ten features of SD-WAN

SD-WAN is a very popular new technology in the current network. Many distributed organizations have adopted or are about to adopt SD-WAN solutions.

SD-WAN is attractive because it combines multiple physical WAN links into one logical network and provides traffic priority to accelerate the performance of applications deployed in on-premises data centers and the cloud.

Using network abstraction, SD-WAN improves the economics of branch office connections by using inexpensive circuits, such as the Internet, to meet growing bandwidth demands. SD-WAN is an overlay technology that maps new services (application priority, security, management) to existing physical networks.

Let's take a look at ten features of SD-WAN applications:

1: Save money

The economics of SD-WAN are about the cost and efficiency of avoiding expensive WAN links. As WAN data grows by an average of 20% per year, most organizations need more bandwidth to enable high-speed communication with remote offices.

SD-WAN can be combined with or replace expensive MPLS connections to securely deploy Internet link DSL, cable, Ethernet, wireless and other Internet links. On average, these Internet connections provide 2 to 5 times the bandwidth of similarly priced MPLS connections, directly contributing to the return on investment of SD-WAN equipment.

2: improve reliability

SD-WAN enables traffic to flow through two or more independent WAN links. As a result, IT organizations can extend their WAN connections by contracting with more than one communications service provider to ensure more reliable connections to remote offices.

This can be a combination of traditional MPLS providers, cable companies and wireless companies. SD-WAN's intelligent capabilities monitor links based on preset policies and route traffic through the most efficient link.

Utilizing enterprise wireless telephony contracts that typically contain a large pool of voice and data minutes is a great way to provide low-cost WAN backup for SD-WAN controlled remote offices with 4G LTE bandwidth.

3: Traffic identification and priority

Most businesses are rapidly moving away from hub-and-spoke WAN connections that pass all traffic back to a central data center, and are moving towards direct point-to-point connections between remote offices and the fastest cloud or SaaS applications.

SD-WAN enables IT organizations to set application and user-driven policies on priorities and security. SD-WAN identifies the type of traffic to and from the branch office and routes it directly to the correct data center.

4: plug and play

Most SD-WAN solutions are very easy to deploy in remote offices. SD-WAN hardware devices are usually shipped to the office, plugged into AC power and WAN connections, and then remotely configured by IT, channel partners, or service providers.

All products have a learning curve in setting traffic priorities, security policies, and orchestration practices. SD-WAN solutions should be easy to integrate with existing network equipment and network security products in the branch office, but this may also require some work.

5: SD-WAN products are not interoperable

The SD-WAN solution utilizes proprietary code to provide intelligent coverage, enabling hybrid WAN, traffic priority, security, management, and more.

IT organizations should choose the SD-WAN solution that best suits their requirements in the short term, and use pairs of remote and central SD-WAN equipment from the same vendor.

Organizations can run SD-WAN device pairs from multiple vendors in different parts of their network, but keep in mind that this means learning to manage each vendor's unique SD-WAN products.

6: SD-WAN supports multi-cloud

Most IT organizations mix internal data centers, applications in the public cloud, and users accessing SaaS applications. SD-WAN solutions have the ability to identify and route cloud-based traffic.

SD-WAN vendors have partnered with leading IaaS providers to accelerate traffic to and from local service points. SD-WAN solutions can identify the IP addresses of most leading SaaS providers and can route traffic accordingly.

7: Internal Security and Partnership

SD-WAN solutions can protect unreliable Internet links and identify abnormal traffic. Each SD-WAN vendor has a unique method to provide VPN, firewall, whitelist, blacklist, encryption, etc.

Other functions may include content filtering, endpoint management, and policy enforcement. SD-WAN solutions need to interoperate with existing network security products, such as next-generation firewalls, and most SD-WAN providers provide a robust ecosystem of network security partners whose products have been integrated with their products.

8: Management, Automation and Network Orchestration (MANO)

For most SD-WAN solutions, the intelligence for management, orchestration, and automation resides in a central data center or cloud. Management, automation and network orchestration (MANO) consoles for centralized IT operators should be highly automated, but this usually involves some learning processes.

Integrating SD-WAN MANO into existing network and application management systems can also be a challenge, which is required for fully automated application performance management.

9: self-managed or managed services

IT organizations can purchase solutions directly from SD-WAN technology providers, or they can purchase hosted SD-WAN services from service providers.

Most organizations will benefit from experienced channel partners to integrate SD-WAN into networks including routers, Wi-Fi, and network security devices. Other organizations outsource SD-WAN solutions and WAN connections to hosted service providers. Business.

10: On the road to the SD branch

The software-defined branch (SD-Branch) utilizes the concepts of SDN and network virtualization to package all the most popular network requirements into a single software-based solution that runs on a unified platform.

Its features include: SD-WAN, routing, network security and networking, Ethernet and Wi-Fi. Many SD-WAN solutions provide the option to expand their capabilities internally or through partners to meet SD-Branch requirements.

As a result, IT organizations can quickly deploy and configure plug-and-play solutions for network branches. This feature may be ideal for IT organizations with new sites, branch offices that are moving, or branch refreshed projects.

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