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Evolution to info-oriented next-gen All-IP

2015.05.01 By Qu Song

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Huawei helps telcos evolve their networks from host-interconnection to information-interconnection orientation through elastic cloud-pipe-device design, agile service provision, and short-term capacity planning. With help from Huawei, telcos can face future business development flexibly, circulate investment effectively, and achieve business success.

As the digital economy dawns, people expect seamless one-click access to whatever they want. For this to occur, networks must choose the best source for a clicked HD video, adjust the bandwidth accordingly, and route it as needed as data centers (DCs) migrate or new DCs are built, all automatically. Another must is collaborative office work, with free anytime-anywhere information sharing without network debugging and connection issues, which can take days to resolve. Current telecom networks focus more on connecting hosts, but evolution to an information-oriented architecture is inevitable.

Traffic: Uneven, diversified, bursty

The information volume generated every 18 months on the Internet now equals the total volume of the past information generated in all of human history, but Huawei finds this network traffic to be tremendously uneven. Google, for example, accounts for a quarter of all Internet traffic of the United States, and current telco traffic models, typically involving 1-to-2-year forecasts, simply cannot be reconciled with this. Planning inaccuracies can cost billions, leaving telcos literally staring into the abyss.

Millions of apps are created each year, and in the near future an estimated 51% of all connections will involve things rather than people. As network nodes diversify, service configuration grows more complicated. One carrier had to spend two weeks to coordinate three domains and configure over 5,000 lines of code on the network side to enable just a single new service.

Today, content can go viral in an instant, whether it be an app, video, song, or game, leading to problems in terms of congestion and load. How can telcos adjust their networks in real time so that traffic bursts get through, with a good user experience maintained?

Empowering evolution: Three innovations

Many new technologies have emerged to facilitate information transfer, including software-defined networking (SDN), named data networking (NDN), information center networking (ICN), and content distribution networking (CDN), but it is difficult to evolve current networks to target networks in a single step. Telcos must find ways to integrate the latest technologies into networks that already exist, and evolve in the manner that suits them best.

Huawei offers a complete solution for telco network evolution, one that relies on three innovations.

Cloud-pipe-device planning flexibility

Thanks to real-time perception of information distribution across the entire network, and full consideration of cloud storage and computing resources, network transmission resources, and end users' real-time requirements, Huawei's solution flexibly allocate network resources in response to burst traffic through semantic-based route computing.

One carrier employed Huawei's network perception solution to realize real-time second-level network traffic analysis and accurate forecast. Based on its SDN/NFV architecture, this solution builds models and designs policies for services, networks, the IT system, and user devices so that resources are allocated flexibly in response to burst traffic. A virtual machine (VM) can be created to offload server traffic, or a backup link can be scheduled to divert traffic, or users can be offered the choice to accelerate access speeds on their terminals. All these adjustments employ cloud-pipe-device collaboration; when traffic burst occurs, none proves a bottleneck.

Fast & accurate capacity designing

Huawei can help telcos design a cloud-oriented traffic model and make certain that capacity planning for each node can meet the uneven traffic requirements of the future by shortening the capacity planning cycle, forecast & modification rolling, and multi-dimensional identification of investment priorities. This way, network investments will build on themselves.

For a certain carrier, Huawei leveraged its traffic collection and analysis capability to aid the reconstruction of its user-centered vertical traffic model into a DC-centered vertical and horizontal traffic model, better suited to uneven DC traffic. Huawei also aided the six-month capacity forecasts and performed rolling traffic forecasts and model modifications every half-month, culminating in 30% gains in planning accuracy and 20% gains in turnover rate for goods.

Agile service provision

Network agility requires standardization. Huawei classifies different services based on their network capability requirements and transforms them accordingly into apps. When a service is needed, programmable network architecture can invoke the corresponding app and orchestrate & deliver it automatically. Thus, service provisioning is restructured, eliminating barriers between departments, improving provisioning efficiency, and enabling an agile business model.

Huawei classified a certain carrier’s services into eight categories based on provisioning time, bandwidth requirements, and latency, and aggregated IT systems and network resources accordingly. The next step involved Huawei making over 20 network configuration templates for those eight service categories to align with different scenarios. If a service requires provisioning, simple operations can trigger huge amounts of configuration automatically. This process transformation aligns the marketing, network planning, and supply chain departments, thus balancing the management of physical resources to eliminate bottlenecks, and therefore halving service provision time.

Empowering evolution to All-IP

Huawei's fixed network integration service provides a complete set of solutions, from network consulting, planning, and design to network testing, deployment, migration, and optimization, with all in support of evolution to All-IP architecture. Huawei facilitates a gradual transition from host-interconnected networks to information-interconnected networks by leveraging our global expert resources, best practices, standardized processes, IT tools, and global support platforms. Huawei has three technical support centers that work 24/7, a powerful professional tool platform, and a Global Network Evolution & Experience Center (GNEEC), all built to ensure efficient delivery of the entire process, and thus facilitate network evolution.

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