New WAN Solution
Posted on 16 June, 2015
Agility – the system can be activated in no time, and used to support intermittently used cloud applications. In addition, the built-in rate limiting capability can eliminate unexpected bandwidth usage bills caused by sudden peaks in data traffic.
The other non-specific benefits that accrue from using a Software-Defined networking include operational savings, improved uptime, better planning and infrastructural savings. The benefit of infrastructure savings is easy to realize because the process of separating the switching intelligence away from packet forwarding, curtails hardware prices. The benefit of improved management is evident in SDN, since Managed Service Providers (MSPs) can use a single toolset and viewpoint to manage storage recourses, virtual networks and computing services. This type of network can also lower operating cost, primarily because networking services can be adapted to the needs of application owners. The resulting effect is less work burden to the networking team. The ability to remove manual interventions in SDNs makes it easy for resellers to slash deployment and configurations errors which are known to weaken network performance. This intervention goes a long way to improvement the overall network uptime.
Recent SD-WANs and WAN Developments and Innovations
Large scale enterprises looking for ideal WAN connectivity are often keen on demanding qualities such as; high scale encryption; great user experience for cloud based applications; ever-present access and multi-point connectivity. The other demands include full and partial mesh topologies, existence of arbitrary hub-and-spoke among other vital networking capabilities. The solutions to finding the right answers to these queries lies in among other things; the development and modernization of traditional architecture through application abstraction and automation.
The other solution is developing a new networking architecture that features elements like segmentation and policy, as well as network security and routing integration. Although these two architectural solutions evidently amount to implementing a pure SDN solution, more work is still required to come up with a resilient ground-up architectural network that uses all the proven networking principles. It also critical to note that today’s world of demanding age of technology and cut throat competition has made the traditional WAN deficient, partly due to the limited size of bandwidth provided by ISPs. This is the main reason, why demand for SD WAN technologies that can adapt to new network and business demands are rising.
Case Study: SD-WAN and Cloud WAN Applications
Today, there are several SD WAN solutions that have been developed by a number of IT companies to solve the bandwidth problem and improving WAN connectivity to applications. A company like Talari Networks Inc has registered several patents for WAN based services such as asynchronous distributed shared memory to support its operating software, the Adaptive Private Network (APN). Aside from the asynchronous distributed shared memory services, the company has also registered patents relating to intelligent SD-WAN and Multi-WAN paths technologies. The other highly anticipated technology from the company will use a centralized controller to make key decisions that can be relayed in real-time across WAN. Using this networking technology, decisions can be made from any network node, thus making it easy to manage IP traffic across the length and breadth of distributed networks.
The seamless distribution of knowledge and decisions across a network that comprises various WANs can go a long way to increase efficient sharing of information. For example, Talari’s SD-WAN solution can easily abstract the assigned WAN access points in a remote virtual network to scrutinize every file in real time and determine such aspects as application and network performance. This proficient information distribution capability allows the company’s node to arrive at intelligent and well-informed decisions, independently. The information attained can then be adapted to changing application trends, to make the network flawless. The ability to share intelligence gathered from vast networks in real-time can also help in the provision of high quality of service as demanded by end-user applications.
Most IT companies involved in developing new WAN solution believe that the power of combining distributed intelligence with centralized guidelines can harness the real power of SD-WANs to enterprises. Case in point, the SD-WAN, THINKING WAN solution by Talari has already been tested across a wide section of customers from various regions using varying WAN configurations; from WAN to Cloud to Hybrid WANs and Multiprotocol Label Switching or MPLS WANs. Some of the benefits of deploying SD-WAN over Hybrid Network using the Talari’s patented APN operating software include:
- Ability to set in motion prioritization policies geared towards specific applications faulted by link failures. The policies are designed to make it easy to individually identify and measure applications against the set guidelines so as to determine aspects such as traffic prioritization, data encryption, bandwidth reservation and link remediation.
- The in-built line, flow and application based dashboards will provide critical statistics from the physical layer. This information can be used to hold service providers accountable for traffic pattern relays. The information can also be used to meet the laid down Service Level Agreements (SLAs), since usage patterns and application performance across different geographical locations and can be established.
- The THINKING WAN or real-time packet-level WAN will work to abstract physical links into a virtual overlay network to add real-time information tracking intelligence collected from packets that run through WAN. The collected intelligence can then be used to make right decisions in respect to the application demands and the status of the physical layer.
- The intelligent overlay network operated under a centralized system of management and control can easily fulfill the laid down business priorities, internal application SLAs and network policies.
A company called VeloCloud has also come up with a Cloud delivered WAN solution that incorporates three basic elements; virtualized services, cloud networking and enterprise-grade internet. The benefits provided by this service are numerous, they include; simplified branch WAN operations and deployments; the ability to replace stacks of hardware appliances with the company’s end-user service subscription and the benefit of making multiple and cost effective broadband links act like an efficient high-bandwidth connection. The solutions advanced by this WAN solution can also be used to visualize cloud analytics attuned to application performance over multiple connections; this capability makes it easy to perform troubleshooting. The other benefit is the provision of a curtailed pay-as-you go model that is designed to encourage efficient budgetary control and flexibility.
The other key player in the fast growing field of Cloud based WANs is a company called Aryaka. The company has come up with the innovative, WAN optimization as-service solution. This solution brings together a multi-tenant, purpose developed WAN optimization tool with enterprise-friendly connectivity through a reliable backbone carrying network. The company’s core network is built on the concept of POPs, centralized WAN, innovative first-class access tech, alongside application layer visibility. WAN optimization as-a-service delivers a LAN rated performance via a private enterprise WAN without the pricey MPLS and the widely used WAN optimization appliance solutions. The benefits provided by Aryaka’s WAN optimization technology, include; optimized access to cloud services, use of private core global network, faster deployments, high security and network wide visibility.