SERVICE DESCRIPTION SD-WAN from NTT Communications
1 NTT SD-WAN Service Portfolio NTT Communications, (NTT Com s), SD-WAN service offers a new approach for deploying enterprise grade Wide Area Networks (WANs) giving the ability to combine multiple access line connections with application-based policy forwarding and security functions. This offers higher network service availability and increased network performance. The following are the key features of NTT Com s SD-WAN service: 1.1 NETWORK CONNECTIVITY NTT Com offer a broad and fully comprehensive selection of network access types and connectivity in over 190 countries which is designed into a solution as the core component of SD-WAN. Based on the client s specific requirements and overall business needs, NTT Com can mix and match multiple types of network technologies such as: MPLS, Ethernet, Internet, Broadband, Wireless and 4G/LTE and deliver the most optimal connectivity solution for each customer office. Alternatively, customers can provide their own ISP connections for NTT Com to integrate into a complete SD-WAN solution. Furthermore, NTT Com delivers scalable VPN gateway services such as Secure Socket Layer (SSL) VPN Service to enable enterprises to connect to their business partners and enable a mobile workforce. 1.2 ACTIVE-ACTIVE PATH CONTROL Active-Active Path Control enables enterprises to distribute and manage network traffic, including local ISP path optimization, traffic prioritization, and performance based routing. Leveraging advanced routing optimization capabilities enables intelligent load-balancing of traffic over the best performing path. 1.3 APPLICATION ACCELERATION NTT Com SD-WAN Application Acceleration service provides: Transmission Control Protocol (TCP) optimization, caching and compression, and application specific optimization to boost the end-to-end performance of enterprise applications traversing the Enterprise WAN. This application Acceleration service enables better performance of the network for the end user and a more effective working environment. 1.4 SECURE CONNECTIVITY NTT Com s SD-WAN service addresses two main concerns around WAN security: protecting the network from external threats and protecting the user s access to public cloud and internet services. As part of the SD-WAN service portfolio, NTT Com's Secure Web Gateway offers customers distributed internet security via NTT Com Local Cloud Centers (LCCs) located globally and/or via ucpe on-premises: Firewall service Intrusion protection service URL filtering service Malware detection reporting 1
1.5 REAL-TIME STREAMING NETWORK ANALYTICS NTT Com s application visibility reporting & analytics tool, was developed in-house and enables realtime in-depth views of network and application performance with features that include: Real time, interactive dashboards that enable enterprises to keep an instant pulse on the health of a network and applications to continuously monitor traffic flows, enabling the identification of and response to business impacting events. Multi-dimensional visualization of: application performance, network security, utilization, and enduser experience allowing organizations to analyze issues at the site level, application layer, or individual user level. Replay functionality that significantly improves the enterprise IT/Network team s capabilities to perform capacity planning, security audits and to pinpoint application performance and network issues that are occurring now or trace, identify and isolate issues that occurred in the past. 2
2 Service Components The SD-WAN service offers a fully bespoke network design, which can be tailored around the customer application environment. The components include dedicated and internet based access lines, managed customer premises equipment, VPN enablement as well as application traffic management. 2.1 NETWORK CONSULTATION During the discovery process, NTT Com SD-WAN network architects will work with you to identify any performance pain points in your network. The SD-WAN solution design engineers fully understand application performance and hybrid network design and will help create an SD-WAN solution to accelerate the performance of your business applications. 2.2 HYBRID WAN DESIGN An enterprise location may have a bespoke and unique set of connectivity requirements, which can also be limited to the type and size of connectivity that is actually available. The hybrid WAN design provided by NTT Com takes into consideration the onsite enterprise application use cases and ensures that correct connectivity types are chosen as part of the SD-WAN solution. 2.3 APPLICATION AWARE ROUTING The SD-WAN service delivers path control for application-aware routing across the WAN. In essence it provides: Dynamic selection of the best path for application-based business policies Application-based load balancing across paths for full utilization of bandwidth with improved network availability NTT Com s SD-WAN management platform monitors application performance on a per-flow basis, and applies its learnings about application performance to select the best path for that application. Using smart-probe intelligence, network traffic probes are sent out across the WAN to analyze the performance of each network path to allow the SD-WAN to adapt to changes and further enhance efficiency. The management platform effectively load-balances across paths while delivering the best application-level SLA. 2.4 SD-WAN SUPPORT Crucial to the SD-WAN service is its integral support function provided by NTT Com s Global Operation Center (GOC) which delivers advanced application layer monitoring and troubleshooting to ensure minimal service interruption to its customers. In the event of an unscheduled problem or outage with the customer s service, the GOC will follow an interwoven set of procedures to facilitate fast resolution. Having full visibility of application performance helps the GOC to identify and mitigate service affecting problems quickly, tracking traffic trends provides insight into any potential issues that may arise. 3
2.5 CUSTOMER PORTAL The NTT Com Customer Portal provides a single point of contact for viewing information about your SD-WAN solution, this includes: Real-time streaming network analytics end-to-end transparency and visibility of application traffic Site-to-site communication Network metrics, including throughput / delay / jitter / packet loss Capability to self-deploy network functions Configure and manage security policies in real time Ticket and event management 4
3 Design Overview 3.1 TRANSPORT-INDEPENDENT WAN DESIGN Software Defined hybrid networks need to be designed to provide efficient application performance. As part of our consultation process with you, we will determine the best topology based on your business requirements. The design will allow us to create application routing policies and also allow for load balancing of default traffic in order to ensure that all available WAN capacity is fully utilized and not wasted. 3.2 SITE DESIGN OPTIONS Depending on your site requirements for service availability and bandwidth, NTT Com is able to design a solution that incorporates multiple (hybrid connectivity) access types. These can include dedicated access like Ethernet and Direct Internet Access combined with more cost-effective connectivity like broadband DSL. Normally an MPLS service runs in ACTIVE/PASSIVE mode which means that all traffic will travel down the primary MPLS line. If the MPLS line should fail then the traffic will switch over to the backup (PASSIVE) line. With an SD-WAN, multiple access lines work together and are all ACTIVE. This allows for better use of your connectivity and can increase the available bandwidth. 3.3 ON-PREMISES OR CLOUD-BASED NTT Com s delivery options for SD-WAN functions include: 5
SD-WAN Edge Device SD-WAN proprietary hardware installed within branch-office On-premises ucpe SD-WAN as virtual network function (VNF) installed within branch-office virtualized CPE Cloud-based network function delivered from NTT Com s network PoPs which are distributed globally 3.4 APPLICATION ROUTING POLICIES To maintain the quality of the network application, routing policies will be created. These policies are then placed into specific traffic classes: Real-time (Voice & Video) Transactional data (Enterprise applications like Citrix, SAP ) Bulk data (FTP, SMB or other traffic to be offloaded to the internet) Default (All other traffic not matching one of the other classes) For each traffic class, the SD-WAN enabled edge devices will continuously monitor the network quality of both MPLS and internet based links to ensure that it meets the performance requirements that have been defined in the policy. 6
3.5 QUALITY OF SERVICE SD-WAN uses the packet marking information to place the traffic into its defined Quality of Service (QoS) traffic class. That means that traffic needs to be correctly identified and marked so that the SDWAN edge can ensure for example that VoIP traffic is forwarded over the MPLS network and File Transfer Protocol (FTP) traffic over the internet. In order to identify the traffic, each SD-WAN edge has a special function configured, which is able to inspect the traffic and identify the applications. This means the edge devices can differentiate between application-a and application-b traffic, even though both are HTTPS traffic going to the internet. In case of outbound internet congestion, dedicated bandwidth can be allocated to the enterprise critical traffic, such as important cloud-based applications. 7
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Contact us: NTT Communications Corporation Global Head Office 1-1-6 Uchisaiwai, Chiyoda-ku Tokyo 100-8019 Japan TEL: +81 3 3500 8111 NTT Europe Ltd. Europe Head Office 1 King William Street London EC4N 7AR United Kingdom TEL: +44 20 7977 1000 NTT America, Inc. America Head Office 757 Third Avenue, 14th Floor New York, NY 10017 U.S.A. TEL: +1 212 661 0810 NTT Com Asia Ltd. Hong Kong Head Office 6 Chun Kwong Street Tseung Kwan O Industrial Estate Tseung Kwan O Hong Kong TEL: +852 3793 0288 NTT Singapore Pte. Ltd. Singapore Head Office 20 West Pasir Panjang Road #11-28 mapletree Business City Singapore 117439 TEL: +65 6438 3101 NTT Com ICT Solutions Pty Ltd Australia Head Office Level 19, 321 Kent Street Sydney NSW 2000 Australia TEL: +61 2 9270 3400 Copyright 2017 NTT Communications The rights of third party trade mark owners are acknowledged. Information in this document is correct at time of print and is subject to change without notice. SDWAN062017-4