Radware产品培训.ppt

* * 根据必威体育精装版的Yankee Group 对大型企业和小型企业的调查：至少62%的被调查者已经部分实施了服务器的虚拟化，同时有12%的被调查者在12个月内会开始服务器的虚拟化工作. 当你将服务器整合到一个虚拟构架的时候，会对现有的网络结构产生巨大的影响。比如VM 迁移对数据传输的要求导致VLAN在数据中心部署的广泛化;其他技术的出现，如FCoE和存储的虚拟化都要求数据中心网络结构的扁平化。传统的三层结构是以终结VLAN为设计基础提出的，为了满足VM的迁移/资源的弹性分配/存储的虚拟化/FCoE等新技术的需求，数据中心的网络结构变得扁平化，三层结构传换成二层结构。 为了主机虚拟化和网络虚拟化技术给ADC层面带来的问题，ADC也开始了虚拟化进程，以满足虚拟化数据中心的建设要求。 First, what does it mean 应用交付-VXTM? We take several physical 应用交付s and consolidate them into one physical device. Instead of having separated physical 应用交付s, we have one single 应用交付 with multiple virtual instances of 应用交付, each is called vADC. Let’s understand the main building blocks of our solution: Each vADC is a virtual instance of 应用交付. It contains the following components: Infrastructure – here we have the physical resources that are allocated to each vADC, i.e.: the CPU, the memory the network resources and other physical system resources. Network – with full virtualized network elements each vADC appears in the network as a separated 应用交付. We have complete isolation and virtualization of all network infrastructure including ARP tables, routing tables, mac address and more. Layer 4-7 services – this is the standard SLB as you know it from Alteon. All the functionality of Alteon is here for each vADC. OnDemand Services – here we have the advanced services that we can add on top of the SLB, such as GSLB, Ddos and the others. We can have up to 28 vADCs in the first release. Each vADC is then allocated with a throughput requirement from the administrator, and is capable of handling different applications and services. In this example, vADC1 is allocated with 1Gbpbs in IP Domain 1 and it handles SharePoint application. For this vADC we added GSLB servic. vADC2 3 in this example are allocated with different bandwidth requirement, are handling other applications in another network domain. In terms of management, each vADC is managed separately and has private configuration file, provate user database, private logging a