Software-defined wide area network refers to WAN connections built and provisioned using software-defined networking (SDN) technology instead of proprietary hardware. Such virtualized WAN connections are intended for establishing highly agile and manageable enterprise networks at the compute and application tiers, between corporate HQs and branch offices or between data centers spanning large geographic distances.
The trend of cloud computing presents an opportunity to replace physical CPE (Customer Premises Equipment) with virtualized, software-defined CPE in order to establish flexible branch-to-cloud connections. Over the past few years in the industry, many enterprises have implemented virtual branch network by focusing on virtualized network services. In other words, virtual machines are replacing physical equipments to assure branch network connectivity while saving hardware costs. Therefore, enterprises today are seeking a reliable yet compact gateway solution that help them optimize and monitor their cloud connectivity between enterprise centers and branches.
IT managers in charge of administering network services for most of today’s multi-location businesses are expected to fulfill rules and levels of authentication based on the types of network services demanded by the local offices or transnational branches. These conventional network infrastructures, more often than not, are intended for delivering services that require almost no flexibility or scalability, which in turn making deploying new services over such wide area and long distance networks a costly and time-consuming task.
Internet usage continues to rapidly expand and evolve, and with it network infrastructure is changing and evolving. The use of general-purpose processors to provide network functionality has changed the face of the networking market and dramatically reduced costs for enterprises and telecom service providers. For the most part, these general-purpose servers have kept pace with Internet application usage. Network traffic, however, has increased dramatically with new applications that have extensive data plane requirements. Traffic has multiplied to a point where specialized technology is needed to keep up.
Data breaches are usually intentional leaks of information without authorization, normally by hacking actions. Data breaches are destructive nightmares to major corporations and organizations because it severely damages not only their profitability, but also trust and reputations. Victims are usually giant corporations or organizations with huge base of users or member, which means gigantic amount of data as the target for hackers. In fact, some user or member data are highly sensitive or confidential and this will severely ruin the serviceability and reliability of the service providers.