Sigcomm 2019 Introduction
The annual summit of top academic network Sigcomm held in Beijing from August 20 to 22. As the ACM Special Interest Group on Data Communication's flagship conference, Sigcomm brought together a global network of top-notch academic researchers, project developers and technology enthusiasts, to explore cutting-edge issues of network technology. This year marks the 50th anniversary Sigcomm organization, also Sigcomm meeting held for the first time in mainland China, Ali goes deep honor to participate in this event.
Ali cloud participants an overview
of Ali cloud smart involved in this year Sigcomm many links. On-site Poster session, Ali cloud shows NFV next-generation network platform architecture, the intelligent network platform "Monkey", cloud connectivity and other network CCN has now landed scale application of core network technology, attracted a large number of participants colleagues came stop the exchange. The picture shows Ali cloud network of senior technical experts to explain Wangpei Long live demonstration for visitors "Monkey" intelligent network platform.
In addition, two papers from Ali cloud intelligent "HPCC: High Precision Congestion Control" and "Safely and Automatically Updating In-Network ACL Configurations with Intent Language" stand out from more than 220 contributors, the main venue made on-site interpretation.
Alibaba Summit
on August 18's "Ali Baba Network Summit" (Alibaba Networking Summit), we invited professors and students from the world's top international academic institutions, and industry leading technical large coffee. By sharing theme, in the form of Hackerthon and roundtable forums, Ali goes to show vision and technical evolution of the industry's leading network engineering capabilities, access to wide acclaim participants.
Ali cloud Cloud State senior technical experts to do a panoramic introduction to Ali cloud networking products. Based virtual network system, "Roselle", Ali cloud built up a large-scale, high-performance, highly reliable global network, supporting the Alibaba Group and ants gold dress umbrella of services such as electricity providers, payment, logistics and so on. Worldwide, serving more than one million users with hundred lines all industries.
Network cloud: support from 1MB to 1TB flexible bandwidth expansion is completed within one second. In terms of scale, network support for 10w single station compute nodes. In this way, both support such services to small virtual web host, it can also support the massive hit double 11 peak flow this zero. It comes to reliability, mean time to failure each year only a single instance of 50ms, the fault time is extremely short.
Cross-regional network: the current global Ali cloud has deployed 20 region and 59 available zones. For the business user deployment in multiple areas, how quickly opened across the LAN, reducing network configuration complexity is a major challenge. CEN cloud corporate network appear first in the industry to achieve a minute to open global network. The whole network dynamic routing learning, rapid convergence, so that access to global interoperability.
Hybrid cloud networks: Ali Cloud is the only launch SD-WAN solutions for cloud service providers. Just plug the Internet cable, intelligent access gateway can be connected through the cloud network to quickly access Ali cloud cloud cloud at the depth of integration business. The whole process user side 0 configuration, intelligent and easy.
云网络技术Poster展示
智能网络平台“齐天”
齐天是阿里云飞天中负责网络数据分析的系统，依托大数据技术赋能网络，让网络变得更简单、高效、智能。除了让用户更好理解网络，更懂网络产品，齐天还从数据出发，指导着网络产品和业务的发展。齐天提供了阿里云网络基础设施端到端全网资源可视化、智能运维、运营支撑、监控诊断、用户画像等能力，直接或间接服务着数百万阿里云网络用户、研发和售前售后技术人员。
齐天的关键特点包括大规模、灵活高效、深度智能。面对数百万的网络控制和转发设备，上千个网络指标、上百个网络产品、数百万网络用户、十几个集团BU业务，齐天每天处理着数百T的数据，提供秒级监控、分钟级诊断能力。通过灵活高效的自动化变更和故障恢复平台，支撑着海量网络基础设施的持续演进升级。针对数据包、流、产品实例级别的深度分析和可视化能力，使得网络工程师面对双11零点的峰值流量也能轻松应对。
CCN云连接网
CCN云连接网是阿里云原生的SDWAN解决方案的核心部分，研发的端设备叫智能接入网关（Smart Access Gateway）。CCN通过SAG为用户提供了高质量的最后一公里接入，实现多站点网络互联，通过云企业网连通云上网络，并支持设备级、链路级、网络级多层次的冗余备份模式。
CCN的核心优势在于在互联网上提供了专线级的网络质量。为了实现这一目标，SAG利用FEC、多倍发包等数据冗余技术提供可靠的网络连接。在调度层面，CCN会根据业务层测量结果实时调度数据转发的最优路径。同时，SAG对协议进行了优化，更好地支持防火墙穿透、多隧道快速切换等场景。
NFV network technology platform
Ali Flying cloud network launched a new generation of virtual network element platform technology architecture, providing a common network forwarding and the ability to control the ECS cloud-based environment, support the PrivateLink, NATGW, SLB, and many other network products.
The key features of NFV technology platform is elastically stretchable, disaster recovery, multi-tenant and eco-friendly. VNF network element based resource pool management, providing delivery of minutes and unlimited horizontal expansion of capacity to meet the needs of different business resiliency. In terms of reliability, the platform includes a plurality of live disaster recovery capability of the available area, a single node can quickly and automatically restore abnormal. In addition, NFV platform also has the ability to multi-tenant, the VPC service and consumer service provider VPC separated, supports third-party eco access.