CLARA: A CLuster-based Active Router Architecture
CLARA: A CLuster-based Active Router Architecture
复制标题
DOI：
--
复制
发表时间：
2000
期刊：
影响因子：
--
通讯作者：
G. Welling;M. Ott;S. Mathur
中科院分区：
文献类型：
--
作者：
G. Welling;M. Ott;S. Mathur
基于网络的内容的个性化加上异构终端和设备的激增将极大地增加对计算服务的需求。当前瘦客户端的趋势使得在终端执行此类计算变得困难，而服务提供商经常外包计算，尤其是在变化的负载下运行时。如今，大多数计算服务都使用传统的分布式系统模型，该模型无法扩展到互联网的比例。为了缓解这个问题，我们认为计算服务应该在高度分布式、尽力而为的基础上提供，事实证明这对于 IP 网络中的数据包路由是成功的。在本文中，我们描述了一种配置路由和计算功能的架构，从而在网络内提供可扩展的计算服务。我们构建的原型利用多台现成的 PC 来提供必要的计算能力。初步实验表明，我们提出的架构可用于以最小的开销执行视频的实时转码。此外，该架构不会在传统 IP 路由上产生任何开销。关键词：集群计算、有源网络、路由器架构、多媒体流、MPEG 转码器
Personalization of web-based content coupled with a proliferation of heterogeneous terminals and devices will dramatically increase the need for computational services. Current trends towards thin clients make it difficult to perform such computation at the terminal end, while service providers frequently out-source computation, especially when operating under varying load. Today, most computational services utilize a traditional distributed systems model, which does not scale to Internet proportions. To alleviate this problem, we believe that computational services should instead be provided on a highly-distributed, besteffort basis, which has proven successful for packet routing in IP networks. In this paper, we describe an architecture that collocates routing and computational functionality, thereby providing a scalable computational service within a network. The prototype we have built utilizes multiple off-the-shelf PC’s to provide the necessary computational power. Initial experiments indicate that our proposed architecture can be utilized to perform real-time transcoding of video with minimal overhead. Moreover, the architecture does not incur any overhead on conventional IP routing. Keywords—cluster computing, active network, router architecture, multimedia streaming, MPEG transcoder