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Design and Implementation of Traffic Management Module in NPV Switch

Author: FengQing
Tutor: ChengBaoZhong
School: Beijing University of Posts and Telecommunications
Course: Software Engineering
Keywords: Fibre Channel over Ethernet N-port virtualization Flow mapping Traffic Management
CLC: TN915.05
Type: Master's thesis
Year: 2011
Downloads: 24
Quote: 0
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Abstract


With the rapid development of modern networks, network data information at an unprecedented rate of growth, the size of the data center is expanding at an alarming rate. Today's data centers are generally constituted by multiple independent Ethernet local area networks, storage area networks, and other networks. In this way, the construction costs of the data center is not only high, but also greatly increases the management cost and complexity. FCoE (Fibre Channel over Ethernet, Fibre Channel over Ethernet) technology mapping Fibre Channel to Ethernet, SAN (Storage Area Networks, Storage Area Network) data transmission Ethernet, which through the work / integration ( I/0Consolidation) to achieve the integration of the data center network architecture and network unified. The FCoE switch emergence of the traditional local area network and storage area network to achieve the uniform requirements of the network. Work in FCF (FCoE Forwarder) mode FCoE switch by a small the Fabric network size (Domain ID) limit of domain identity network only supports up to 239 FCF switch (FCF switches each assigned a domain is ID, effective The Domain ID only 239). SAN network directly connected server edge switches or storage device in great demand, in order to make the edge switches can break through the 239 maximum limit on the number to increase the NPV (N of Port Virtualizer N port virtualization) mode FCoE switch, referred to as the NPV switch. The NPV switch located Fabric edge of the network, between N node device (server or disk device) and FCF core switches, NPV N-port switch through F port equipment and N nodes connected by NP port F and core switches connected to the port, final N nodes through the NPV switch access to the Fabric network. NPV switches in the server appears to be a FCF switch appears to be a host in the core of the FC switch. This paper analyzes the function of the of FCoE switch system in NPV mode mainly describes the design and implementation of the traffic management of the switch system. First, traffic management, a detailed needs analysis, clear flow mapping and mapping tables issued forwarding function design and implementation, including a data structure used throughout the development process, and the processing of various functions of the module. Secondly, according to the design of the test cases in the encoding process is complete, the unit testing and system testing, through the test to verify the correctness of the entire module design and implementation.

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