现代网络中Super VLAN技术的研究与实现

发布时间：2018-06-17 17:13

本文选题：Super + VLAN　；参考：《西安电子科技大学》2014年硕士论文

【摘要】：二层交换机能够有效的隔离冲突域,但是它并不能有效的处理好广播域对网络的影响。当网络中的主机数量很多时,网络吞吐量会大大降低,报文转发率急剧减小,网络带宽得不到充分利用,安全方面可能也会存在一些问题。VLAN技术能很好的解决上述问题。VLAN,虚拟局域网,可跨不同网段。一个VLAN就是一个逻辑广播域。VLAN可以覆盖多个网络设备。VLAN将网络设备划分成多个不同的网段。VLAN技术在实际应用中倍受青睐,但在一般的网络组网方式中,VLAN的通信方式对IP地址资源浪费比较多。随着互联网的快速发展,IP地址资源越来越紧张,在这种情况下,为了缓解IP地址资源的紧张形势,Super VLAN的概念被提了出来。Super VLAN又称VLAN聚合或者超VLAN。一个Super VLAN可以包含多个Sub VLAN。一个SubVLAN是一个独立的广播域。Sub VLAN间的主机,二层隔离,三层互通。SubVLAN可以加物理端口,Super VLAN不可以加物理端口。Super VLAN是否处于UP状态,取决于它的Sub VLAN是否UP。Super VLAN技术中涉及到ARP代理功能。Super VLAN技术达到了节省IP地址资源的目的。Super VLAN技术能有效解决网络环路的问题,编址灵活,保证网络良好的吞吐量,能消除子网间的差异,使网络升级更容易。这些优点使得Super VLAN在实际的网络应用具有很大的优势,它在实际中应用的层面也越来越广。但是仅仅从理论上论证是单薄的,上述结论还需要在实际应用中去论证,本文便是从实际应用中出发,对Super VLAN功能进行了软件实现,将此功能实际应用在网络设备中,并在实际的网络组网中,搭建测试环境,进行了完备的功能测试,论证上述理论的正确性。
[Abstract]:Layer 2 switch can effectively isolate the conflict domain, but it can not deal with the impact of broadcast domain on the network effectively. When the number of hosts in the network is large, the network throughput will be greatly reduced, the packet forwarding rate will be reduced sharply, and the network bandwidth will not be fully utilized. Security aspects may also exist some problems. VLAN technology can solve the above problem. VLAN, virtual local area network, can span different network segments. A VLAN is a logical broadcast domain. VLAN can cover multiple network devices. VLAN divides the network equipment into multiple different network segments. VLAN technology is very popular in practical applications. However, in the general networking mode, the communication mode of VLAN is more wasteful of IP address resources. With the rapid development of the Internet, the resources of IP address are becoming more and more tight. In this case, the concept of Super VLAN has been put forward in order to alleviate the shortage of IP address resources. Super VLAN is also called VLAN aggregation or super VLAN. A Super VLAN can contain multiple Sub VLANs. A SubVLAN is a host between independent broadcast domains. Sub VLAN, two layers are isolated, three layer interworking. SubVLAN can add physical port. Super VLAN can not add physical port. Super VLAN is in up state. Depending on whether or not its Sub VLAN involves ARP proxy function. Super VLAN technology can save IP address resources and can effectively solve the problem of network loop, address flexibility, and ensure good throughput of the network, which depends on whether its Sub VLAN technology involves the ARP agent function, the Super VLAN technology has achieved the goal of saving IP address resources, and the technology of Super VLAN can effectively solve the problem of network loop. Can eliminate the difference between subnets, make network upgrade easier. These advantages make Super VLAN have great advantages in practical network applications. However, the theoretical proof is thin, and the above conclusions need to be demonstrated in practical application. This paper is based on the practical application, and implements the Super VLAN function by software, and applies this function to the network equipment. In the actual network, the testing environment is set up, and the complete function test is carried out to prove the correctness of the above theory.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TP393.1

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