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Constructing Enterprise Private Lines
in the Cloudification Era

The prevalence of cloud computing is increasing, as public clouds such as Amazon Web Services (AWS) become more popular. This is driving infrastructure such that enterprise data centers need to become cloud-based. An increasing number of enterprises are using public cloud services and, in so doing, are breaking the traditional closed architecture of enterprise IT and promoting openness in the enterprise network architecture. At the same time, enterprises are gradually migrating key applications to the cloud, choosing to rely on Software-as-a-Service (SaaS) provided by application service providers. Access to these applications from the cloud is achieved through Internet links. Service cloudification imposes new challenges on traditional enterprise WAN links.

Financial industry: The development of online banking, mobile banking, and e-payment is driven by consumer demand. The banking industry needs to re-examine the function of local branch offices. In the future, more than 50 financial services are expected to migrate to the cloud, as banks continue to change their business model for payment processing and query. In addition, a growing number of digital financial services, such as Virtual Teller Machine (VTM) and e-billing, will be provided through enterprise private lines. Branches will therefore need larger WAN bandwidth and require higher guarantees for mission-critical services.

Retail industry: In the past, sales were reported at the end of the day and then a replenishment order was issued instantly. Nowadays, every transaction is monitored. In-store technologies, such as mobile-based price comparison, are helping create a new retail experience for consumers. As the retail industry becomes more complex, larger WAN bandwidth is required. Consideration also needs to be given to enterprise buyouts, integration, and store expansion, including mergers and acquisitions of platforms, systems, and processes. Retailers require the communications network to keep pace, as speed is of great importance.

Traditional enterprise networks usually consist of a campus, branch, and data center, each of which is interconnected through the enterprise WAN. To ensure service quality, enterprises have long used carriers’ physical or MPLS/VPN private lines for WAN interconnections. However, leasing private lines is expensive and requires significant expenditure by enterprises for WAN interconnections. In addition, service provisioning takes time. Enterprises often need to apply for VPN service and then wait for service commissioning and on-site configuration, which can take several months. Furthermore, traditional private lines cannot detect services and therefore cannot obtain the application status. When traffic bursts cause link congestion or quality deterioration, the quality of mission-critical services cannot be guaranteed. Low O&M efficiency is also a concern, as dedicated personnel are required to perform on-site fault location if a fault occurs, regardless of whether the fault is a network or application software fault. Therefore, traditional private lines cannot meet requirements for increasing efficiency, reducing costs, improving experience, or achieving fast business change of enterprises facing the cloudification trend.

To address the preceding challenges, a cost-effective enterprise interconnection solution delivering the optimal experience is required. The solution must speed up service provisioning, support use of Internet links, guarantee key application experience, and achieve highly efficient O&M. At CeBIT 2017 held in Germany, Huawei launched the Software-Defined WAN (SD-WAN) Solution to provide enterprises with application-aware cloud-based enterprise private lines.

Huawei SD-WAN Solution supports a full range of Customer-Premises Equipment (CPE) interfaces, including LTE, 3G, G.fast DSL, PON, and hybrid access. It can be used in any enterprise access scenario. The solution helps enterprises to combine links such as 3G/LTE, MPLS private lines, and xDSL and fully use the cost-effective, widely deployed Internet links, increasing WAN bandwidth while reducing costs.

For service provisioning, service requirements are automatically assigned and delivered after the order is placed. Order review, device packing, and device dispatch through express delivery require only 15 minutes. After receiving the devices, enterprises need only to connect the power and network cables to the devices. Enterprises can use fast deployment technologies such as smartphone-based barcode scanning and email-based deployment to achieve automatic registration and automated, remote, cloud-based configuration. This allows enterprises to deploy devices without needing on-site visits by dedicated technical personnel and shortens the time to provision services from months to days.

Huawei SD-WAN Solution implements application-based intelligent traffic scheduling to provide differentiated network services as required, ensuring the quality of service for key applications. For example, applications that require high-quality links use private lines, and other applications use Internet links. If a link fails or becomes unstable, applications using the link can flexibly switch to other links to ensure user experience is not impacted.

For O&M, Huawei Agile Controller provides real-time insights into the quality and status of applications and links and achieves rapid fault location on the entire network based on E2E application status visualization and accurate detection technologies.

Ahead of the upcoming HUAWEI CONNECT 2017, Huawei will launch the next-generation SD-WAN Solution. This solution enables enterprises to build enterprise WAN interconnections that deliver optimal experiences. It provides on-demand interconnections between branches, between branch and data center, and between branch and cloud, application guarantees, and on-demand application for Value-Added Services (VASs).

For more information about Huawei SD-WAN solution, please visit: e.huawei.com/en/solutions/technical/sdn/enterprise-wan/sd-wan


HUAWEI CONNECT 2017, Huawei’s flagship event for the global ICT industry, will be held at the Shanghai New International Expo Centre, September 5 to 7, 2017. The theme is Grow with the Cloud. During this global platform for open collaboration, Huawei will help customers and partners explore new ways to grow through digitalized transformation.

For more information about HUAWEI CONNECT 2017, please visit our website: www.huawei.com/minisite/huaweiconnect2017/en/