ETTM: A Scalable Fault Tolerant Network Manager
ETTM: A Scalable Fault Tolerant Network Manager
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ETTM：可扩展的容错网络管理器
DOI：
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发表时间：
2011
期刊：
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通讯作者：
A. Krishnamurthy
中科院分区：
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作者：
Colin Dixon;Hardeep Uppal;Vjekoslav Brajkovic;Dane Brandon;T. Anderson;A. Krishnamurthy
在本文中，我们设计，实现和评估一个新的可扩展和容错的网络管理器，称为ETTM，安全和有效地管理网络资源在一个数据包的粒度。我们的目标是以较低的成本为网络管理员提供对网络行为的更大程度的控制，并为网络用户提供比现有解决方案更高的性能、可靠性和灵活性。在我们的系统中，网络资源是通过软件运行在可信的执行环境中参与终端主机。虽然该软件在物理上运行在终端主机上，但它在逻辑上由网络管理员集中控制。我们的方法利用了网络交换机上的开放管理接口以及终端主机上的可信计算硬件和多核的趋势。我们表明，似乎必须在网络内部实现的功能，如网络地址转换和访问链路带宽的优先级分配，可以简单有效地实现在我们的系统。
In this paper, we design, implement, and evaluate a new scalable and fault tolerant network manager, called ETTM, for securely and efficiently managing network resources at a packet granularity. Our aim is to provide network administrators a greater degree of control over network behavior at lower cost, and network users a greater degree of performance, reliability, and flexibility, than existing solutions. In our system, network resources are managed via software running in trusted execution environments on participating end-hosts. Although the software is physically running on end-hosts, it is logically controlled centrally by the network administrator. Our approach leverages the trend to open management interfaces on network switches as well as trusted computing hardware and multicores at end-hosts. We show that functionality that seemingly must be implemented inside the network, such as network address translation and priority allocation of access link bandwidth, can be simply and efficiently implemented in our system.