云计算网络虚拟化关键技术及标准化状态.ppt

? 2009, Cisco Systems, Inc. All rights reserved. Presentation_ID.scr * 从应用的角度，二层以太网是最为理想的环境，基至有的程序必须在二层网络中进行部署；另外，GE0-CLUSTER的应用正在崛起；对二层网络提出了要求 从规模的角度，计算量显著增大；虚拟机数量部署增多 ? 2009, Cisco Systems, Inc. All rights reserved. Presentation_ID.scr * 网元、终端数量 链路数量，链路带宽 设备层面、维护层面、技术层面 通过技术革新、让设备增加新的功能，增加新的维护手段，在满足日益增长的网络规模的同时，减轻运维工作负担。 ? 2009, Cisco Systems, Inc. All rights reserved. Presentation_ID.scr * IS-IS (Intermediate System to Intermediate System) An OSI routing protocol adopted by the IETF Easy to extend through TLVs Does not require IP addresses 在同一个矩阵内可以支持12K计算节点 大二层不仅意味着联网的终端数更多，同时要尽可能保证终端间的联网带宽资源 FabricPath is simple, keeps the attractive aspects of Layer 2 Transparent to L3 protocols No addressing, simple configuration and deployment FabricPath is scalable Can extend a bridged domain without extending the risks generally associated to Layer 2 (frame routing, TTL, RPFC) FabricPath is efficient High bi-sectional bandwidth (ECMP) Optimal path between any two nodes 2,048 X 10GE Server Design Cisco IT has standardized on virtual machines as the new atomic unit in compute and is driving the transition to cloud based services. This disruptive journey is also an excellent time to examine your corporate environment for optimization at every stage. Optimize and Consolidate – Standardize and eliminate all redundant or overlapping infrastructure Optimize with Virtualization – Decommission overlapping applications- Just because one can virtualized 20 physical servers and their applications onto a single server, do not blindly migrate the applications leverage this disruptive instance to eliminate all overlapping applications Optimize and Automate – Great opportunity to improve efficiency and effectiveness of every business process. One does not want to make bad decisions faster. Beyond automation, you begin to enter the next level of IT refinement with robust utility pay-as-you-go services offered within: Enterprise intranet-class cloud utility services and Inter-cloud go-to