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SD-WAN

A specific application of software-defined networking (SDN) technology applied to WAN connections.

ASI Cloud-Delivered SD-WAN incorporates a distributed network of service gateways and SD-WAN orchestrators deployed at top tier cloud data-centers around the world, providing scalability, redundancy and on-demand flexibility.

One of the most widely used services that involve the use of SDN Solutions is SD-WAN. Enterprises must adapt their network architecture to accommodate the increasing shift of applications and data-centers to the cloud while delivering the expected levels of reliability, performance, and security.

ASI Cloud-Delivered SD-WAN brings SDN concepts to the enterprise branch WAN. Following a key principle of SDN, ASI separates the data, control and orchestration planes to provide valuable flexibility.

ASI service gateways and orchestrators enable optimized data paths for all applications, branches and data centers along with the ability to deliver network services from the cloud. Eliminate datacenter backhaul penalties with a cloud-ready network to provide an efficient direct path to public and private enterprise clouds. Enterprises get unmatched flexibility to decide what services to deploy and manage, when to upgrade and adhere to network operation policies.

Security

The ASI Edge can host multiple virtualized network functions, thereby eliminating the need for single function appliances in branch offices and reducing IT complexity. Virtual network function services can be remotely distributed and activated from the cloud. This capability is a key ingredient of VaporVM Cloud-Delivered SD-WAN to deliver virtual network services such as cloud web security via Zscaler, Raytheon Forcepoint, etc.

Virtual Service Delivery

ASI Cloud VPN provides site to site virtual private networks (VPNs) to secure traffic. No additional data center equipment is required if IPsec VPN is already available. ASI Cloud VPN services are interoperable via the one-time configuration of standard VPN-compliant IPsec to existing headquarters, campus or data center sites. The IP address manager enables unique blocking of IP addresses per site with a single click and the dashboard displays real-time status and health of VPN sites.

Easy Policy Settings

ASI Cloud-Delivered SD-WAN makes setting policy as simple as a click. Enterprises can define business rules, such as prioritizing collaboration applications over social media. Many other business application policies, such as specific prioritization mechanisms, resource allocations, link/path steering, and error correction are also configurable. Deployment options, such as branch-to-branch and branch-to-data center, are also flexible and easy to set.

Deploy in Minutes

The ASI Edge can host multiple virtualized network functions, thereby eliminating the need for single function appliances in branch offices and reducing IT complexity. Virtual network function services can be remotely distributed and activated from the cloud. This capability is a key ingredient of ASI Cloud-Delivered SD-WAN to deliver virtual network services such as cloud web security via Zscaler, Raytheon Forcepoint, etc.

Platform Details

ASI Edges and multi-tenant ASI Gateways can host multiple virtualized network functions. This helps eliminate the need for multiple single-function appliances in the branch. The multi-tenant ASI  Orchestrator enables provisioning, business policy, and rapid cost effective deployment of branch sites and services.

  • ASI Edges:
    In addition to a virtualized software instance, the ASI Edge is available as a compact CPE (7-inch x 7-inch box) that is easy to configure and supports flexible service selection and additions. The ASI Edge improves upon traditional on-premises services that typically require a dedicated-function appliance per service which then leads to a proliferation of boxes in branch offices
  • ASI Gateways:
    Multi-tenant ASI Gateways are deployed at top-tier network and cloud data centers around the world, offering scalability, redundancy, and on-demand flexibility. The ASI Gateways are available to optionally provide the insertion of cloud-delivered services and optimized paths to all cloud-based applications to and from any branch, campus, headquarters or private data center. ASI Gateways deliver the ideal architecture for optimized access to cloud data centers and SaaS applications.
  • ASI Orchestrator:
    The ASI Orchestrator provides centralized enterprise side installation, configuration and real time monitoring in addition to orchestrating the data flow through the cloud network. The ASI Orchestrator enables one-click provisioning of virtual services in the branch, the cloud, or the data-center.

Performance Is Key

ASI Cloud-Delivered SD-WAN boosts the service level of standard broadband Internet links by implementing a number of technologies, including:

  • ASI Dynamic Multi-Path Optimization:
    Applications are steered to the optimal link based on available throughput, performance metrics, application requirements, application business priority, and link cost. For illustrative purposes, the screenshot above shows how ASI Multi-Path Optimization (upper green line) remediates the performance issues experienced when transport links 1 and 2 operate independently. This technology creates a virtual, high bandwidth pipe from multiple, inexpensive broadband links and private leased lines, providing customers improved WAN economics and quality.
  • Forward Error Correction:
    When real-time traffic (e.g., VoIP) with higher business priority is identified, forward error correction is dynamically performed to reduce or eliminate packet loss. In tests on approximately 24 million anonymous data records, Internet connections had performance issues that impacted voice quality (dropping segments of calls) about 18% of the time. A combination of application steering, dynamic jitter buffering and forward error correction reduced voice degradation to less than 1% of the time.
  • Real-time Analytics:
    A dashboard displays network and application performance which can be used to make traffic control decisions, such as treating real-time interactive and bulk streams differently. The service classifies over 2,500 applications, which enables granular control of applications when optimizing quality of experience.

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