开源时代执行策略

数据中心史上令人振奋的时刻。 我们看到两大趋势相撞:开源软件成熟和基础设施重新定义策略
开源趋势不言自明。 OpenStack和OpenDaylight等平台正在获取大型开发者思维分享以及大商支持与投资。 甚至像Docker等新技术使用linux内核容器和Ceph软件存储法提供开源大有希望路径。鉴于建筑多样性基础设施环境互操作性基本需求,开源获得势头并不奇怪。

The second trend around policy is a bit earlier in its evolution but equally disruptive.  Today, there is a huge disconnect between how application developers think about their requirements and the languages and tools through which they are communicated to the infrastructure itself.  For example,  just to handle networking, a simple three tier app must be deconstructed into an array of VLANs, ACLs, and routes spread across a number of devices.  Storage and compute present similar challenges as well.   To simplify this interaction and create more scalable systems, we need to actually rethink how resources are requested and distributed between different components.  This really boils down to shifting the abstraction model away from configuring individual devices to focus on separately capturing用户意向操作基础架构和守法要求

思科真正接受这两种趋势。我们积极促进100多个开源项目并创建OpenStackNeutron和OpenDaylight成员。我们还通过集成并整合广受欢迎的项目和产品而使开源成为成功的商务实践。同时思科通过CiscoUnited Ecco和最近Cisco应用Centric基础设施的工作在描述政策方面积累了大量经验。

基于此基础,我们看到与开源社区协作提供政策驱动基础设施愿景的独特契机。 这将提高开源软件可用性、规模和互操作性并惠及整个基础设施生态系统

包括开源社区的两项创举

1. 分组策略信息模型设计表达网络上应用资源需求并留置简单控件和数据平面。这个方法用新原语取代VLANs等传统网络结构,如模块级或程序组件和描述关系之类新原语 。基于集团策略将在OpenStackNeutron和OpenDaylight中通过插件支持模型任选软件或硬件基础
2. OpFlex:设计解决策略的网络设备内分布式智能代理器框架。这些代理器将把从逻辑中心存储器取出的抽象硬件独立策略转换成设备特有特征和能力

更仔细地看下这些创举

中子/开放系统群策

Cisco is collaborating with the OpenStack community and partners including Big Switch Networks, IBM, Juniper, Midokura, Nuage, One Convergence, and Red Hat to extend OpenStack Neutron's networking model with new policy APIs.  Unlike the current Neutron primitives, which rely on Layer 2 and Layer 3 behavior, these APIs offer users an intuitive but flexible mechanism for describing networking requirements using a language of groups and contracts.  And of course, group-based APIs can support any network backend or even be rendered back to existing Neutron primitives.   Anyone is welcome to participate in this effort.  The easiest way to get involved in the community is to join the每周IRC会议.
现场演示群策模型-短演示

https://www.youtube.com/watch?v=AlAP5OOhLsQ

开放日光基于群策

Cisco还正与ODL社区协作,包括Ericsson、HP、IBMOKURA、One Convergence、Plexxi和RedHat建立全套基于集团的政策API开放日光维基.

OpFlex

Cisco、Citrix、RedHat、Intel和Midokura合作开发开源OpFlex代理嵌入各种网络设备中OpFlex协议最近向IETF推荐描述分布式控制架构

OpFlex也像a驱动OpenDaylight内项目openVSDB接口顶端运行,但可转至其他开源平台和商业平台。项目中包括面向南开源插件,以提供开源控制器实现OpFlex

期望它能让大家很好地理解我们如何驱动开源社区基于政策的举措和原因。虽然我们这项努力的初始目标仅仅是驱动标准互操作性,在很大程度上多亏我们在生态圈中发现的支持,但我们集中关注更大的视觉-使开源基础设施更容易伸缩、更容易自动化和更容易使用。我们想看到你加入我们的任务