The increasing use of cloud and the continuous demand for bandwidth have driven enterprises to seek more flexible and simpler WAN solutions, which means the conventional WAN architecture relying on MPLS to rout traffic data between branch offices and data center will be history, just a matter of time. However, enterprises are reluctant to replace existing hardware infrastructure overnight. Thus, Hybrid WAN and then SD-WAN have emerged.
Cable MSOs (multiple-system operators) are going to challenge telecom’s long market dominance in enterprise services, with the new power by SD-WAN (Software-defined WAN). Cable providers are benefited with the SDN technology enabling them to serve large, multi-site corporations. With SD-WAN, cable MSOs can leverage their existing coaxial connectors with Gigabit Internet speeds enabled by adopting DOCSIS 3.1 technology, thus they do not have to rely on fiber alone. In other words, SD-WAN allow cable services to offer more flexible and affordable services and connectivity for multi-site enterprises than the currently employed MPLS (Multiprotocol Label Switching) services to integrate all the cloud applications, such as VoIP, ADC and VPN, among distributed branches.
The growth of OTT (Over-the-Top) has greatly impacted the ecosystem of TV broadcasting ecosystem, due to the diversified demands of multi-screen video content consumption, wide use of mobile viewing gadgets and changes in CDN (content delivery network). Since the beginning of the digitalization era, OTT has become the mainstream service that broadcasting operators all over the world are striving to provide to their subscribers. Therefore, they realize that the success of OTT lies in the encoding, decoding and transcoding capability in order to support multi-format viewing on various devices.
As pointed out by Gartner report in 2016, more than 30% of advanced cyber threats, such as DDoS, data breach, and ransomware, will aim at the most vulnerable edge networks of SME or remote business branches, where IT managements are more concerned with budget, service flexibility and manageability. To build up sustainable measures against latest emerging cyber threats, they need a flexible, on-demand, and software-defined security to achieve total zone defense for their networks. With the trends of NFV and vCPE network virtualization infrastructures, SMEs and branch offices shall employ x86 open compute vCPE platforms and SD-Security to simplify their edge security operations and deliver service agility while maintaining OPEX efficiency and elasticity.
Network Function Virtualization (NFV) is a new network architecture concept that uses IT virtualization technologies to decouple network functions, such as router, firewall, network address transition (NAT), and domain name service (DNS), from proprietary hardware appliances so that they can run as software on general purpose network platform. NFV aims to help telecom service providers obtain operation agility, OPEX efficiency and scale-on-demand network services.