虚拟局域网技术在城域网中的应用与实践
摘要
目前,随着信息技术的发展,有线宽带网络凭借其丰富的宽带资源和巨大的发展潜力,倍受关注并逐渐成为实力雄厚的网络服务提供商(ISP)。那么,随着有线电视宽带城域网络技术的日益成熟,利用VLAN技术的诸多优势来实现有线电视宽带城域网络的管理将成为必然的趋势。
本文从VLAN技术在辽阳有线电视宽带城域网建设中的实际配置的角度出发,对VLAN技术在城域网中的应用与实践作了深入的探讨。文中详尽地阐述了VLAN技术所涉及到的相关概念、基本原理和关键技术,同时在深入地研究了辽阳宽带城域网中所存在的诸多问题的前提下,利用VLAN透传技术、PVLAN技术、VLAN时钟同步技术、三层交换技术解决了城域网中未授权上网等问题,使得城域网的管理和运行更加完善,同时也均衡了网络的负荷、有效降低了网络中的广播信息,提高了宽带网络的安全性和高效性。
Twenty centuries ninety age initial stage, the functions of computer as well as the amount of communication increased greatly, and traditional local area network couldn’t bear the load any more and thus the exchanging network came into being that improved the local area network ability a lot. Adopt to owe the local area network that the technology forms whose centre equipment——switch has been evidently improved. Its every end but of equal rank , safe , simultaneous mutuality transfers information, and make a local area network not bad the altitude expands.
Then, with the rapid growth of switch technology, the application of VLAN technology has aroused more and more attention. Its market prospect is promising and it has developed into one of the confirming function provided for VLAN resolution with the capability of switching. Maybe VLAN is still mysterious to some people. In fact, the IEEE802.IQ standard about VLAN was implemented by IEEE committee in June, 1996 and Cisco Company mentioned the technology early in 1996. They called it as“Virtual Local Area Network”. It is a new technology that realizes virtual workgroup by dividing the logical address rather than physical address into network segments. Nowadays, VLAN has become the most popular technology and has been widely used in major enterprise networks, campus networks and intelligence communities. The reasons of the wide use of VLAN technology are: 1) VLAN technology provides the flexible combination mechanism of network segments and structures. The stations of the network are not restricted in the physical address and they can be applied to the logical sub-network according to the requirements. In this way, the network users are classified and under control. 2) VLAN technology has solved the problems, such as the increasing, deletion and removal of the stations which makes it convenient to maintain and manage the network. 3) VLAN’s fire wall function can satisfy the restrict safety requirement which may take place of many functions provided by routers in this field.
21st century is the era of knowledge and economy. Information will become the most important resource for human beings. CATV network is not only the second largest public connection net, but also the most potential and the richest broadband net. The technology of CATV broadband city area net allows the users to be online, watch TV and make calls at the same time. Therefore, it has aroused people’s interest and become one of the most important Internet Service Providers. We will make use of the advantages of VLAN technology to manage the CATV broadband city area net as its technology is becoming mature.
The users’requirements and the amount of connection are increasing as the result of the rapid development of information technology and the heated competitions. Under these conditions, problems of operation and management of CATV broadband city area net can’t be solved completely no matter what methods are taken. For example, some illegal users go on line by unauthorized IP.
This thesis is based on the application of VLAN technology in Liaoyang Broadband network construction. It furtherly analyzes the application of VLAN technology in the city area net.
The body of this paper is: Firstly, the analysis of the basic theory of VLAN technology. The purpose is to emphasize its advantage that will completely solve the technological problems existing in the city broadband network. It includes: 1) the technology standard 2) the solutions of VLAN technology 3) the basic theory, classification and application 4) the realization of the technology Secondly, the analysis about the development of the technology. It includes: 1) the trend of setting up broadband IP city network and its application technology and equipment. 2) the service targets, requirements, solutions and opportunities. 3) the problems, solutions and design based on the analysis of the survey and situation of the city local area net work.. Thirdly, the most important as well as what I concern most is the design and disposition of VLAN in the broadband city area net. Lastly, it is about the summary and prospects of the application of VLAN technology in broadband city area net. The attracting point of the paper is how to solve the problems in the Broad Band Network. It is proved that the technology exerts its advantage to avoid unauthorized log-on, distribute network resource reasonably and control network broadcast storm. It not only breaks the limits of the traditional VLAN technology which was only applied to the local net, but also enhances the safety and efficiency of broadband net and plays an important role in specialized network and new network function in the future.
本文从VLAN技术在辽阳有线电视宽带城域网建设中的实际配置的角度出发,对VLAN技术在城域网中的应用与实践作了深入的探讨。文中详尽地阐述了VLAN技术所涉及到的相关概念、基本原理和关键技术,同时在深入地研究了辽阳宽带城域网中所存在的诸多问题的前提下,利用VLAN透传技术、PVLAN技术、VLAN时钟同步技术、三层交换技术解决了城域网中未授权上网等问题,使得城域网的管理和运行更加完善,同时也均衡了网络的负荷、有效降低了网络中的广播信息,提高了宽带网络的安全性和高效性。
Twenty centuries ninety age initial stage, the functions of computer as well as the amount of communication increased greatly, and traditional local area network couldn’t bear the load any more and thus the exchanging network came into being that improved the local area network ability a lot. Adopt to owe the local area network that the technology forms whose centre equipment——switch has been evidently improved. Its every end but of equal rank , safe , simultaneous mutuality transfers information, and make a local area network not bad the altitude expands.
Then, with the rapid growth of switch technology, the application of VLAN technology has aroused more and more attention. Its market prospect is promising and it has developed into one of the confirming function provided for VLAN resolution with the capability of switching. Maybe VLAN is still mysterious to some people. In fact, the IEEE802.IQ standard about VLAN was implemented by IEEE committee in June, 1996 and Cisco Company mentioned the technology early in 1996. They called it as“Virtual Local Area Network”. It is a new technology that realizes virtual workgroup by dividing the logical address rather than physical address into network segments. Nowadays, VLAN has become the most popular technology and has been widely used in major enterprise networks, campus networks and intelligence communities. The reasons of the wide use of VLAN technology are: 1) VLAN technology provides the flexible combination mechanism of network segments and structures. The stations of the network are not restricted in the physical address and they can be applied to the logical sub-network according to the requirements. In this way, the network users are classified and under control. 2) VLAN technology has solved the problems, such as the increasing, deletion and removal of the stations which makes it convenient to maintain and manage the network. 3) VLAN’s fire wall function can satisfy the restrict safety requirement which may take place of many functions provided by routers in this field.
21st century is the era of knowledge and economy. Information will become the most important resource for human beings. CATV network is not only the second largest public connection net, but also the most potential and the richest broadband net. The technology of CATV broadband city area net allows the users to be online, watch TV and make calls at the same time. Therefore, it has aroused people’s interest and become one of the most important Internet Service Providers. We will make use of the advantages of VLAN technology to manage the CATV broadband city area net as its technology is becoming mature.
The users’requirements and the amount of connection are increasing as the result of the rapid development of information technology and the heated competitions. Under these conditions, problems of operation and management of CATV broadband city area net can’t be solved completely no matter what methods are taken. For example, some illegal users go on line by unauthorized IP.
This thesis is based on the application of VLAN technology in Liaoyang Broadband network construction. It furtherly analyzes the application of VLAN technology in the city area net.
The body of this paper is: Firstly, the analysis of the basic theory of VLAN technology. The purpose is to emphasize its advantage that will completely solve the technological problems existing in the city broadband network. It includes: 1) the technology standard 2) the solutions of VLAN technology 3) the basic theory, classification and application 4) the realization of the technology Secondly, the analysis about the development of the technology. It includes: 1) the trend of setting up broadband IP city network and its application technology and equipment. 2) the service targets, requirements, solutions and opportunities. 3) the problems, solutions and design based on the analysis of the survey and situation of the city local area net work.. Thirdly, the most important as well as what I concern most is the design and disposition of VLAN in the broadband city area net. Lastly, it is about the summary and prospects of the application of VLAN technology in broadband city area net. The attracting point of the paper is how to solve the problems in the Broad Band Network. It is proved that the technology exerts its advantage to avoid unauthorized log-on, distribute network resource reasonably and control network broadcast storm. It not only breaks the limits of the traditional VLAN technology which was only applied to the local net, but also enhances the safety and efficiency of broadband net and plays an important role in specialized network and new network function in the future.
引文
1. 陈志荣主编.实用计算机网络技术教程.电子工业出版社，2001-2：25页
2. VLAN技术在宽带接入系统中的应用.http://www.cnpaf.net，2005
3. 杨大全.计算机网络.东北大学出版社，2004-02：69-72
4. 林雄忠.虚拟局域网(vlan)技术.电子工业出版社，2003年：1-15
5. 陈虎.可堆叠vlan在城域网中应用的研究.吉林大学信息工程学院，2003：36
6. Hironori Terauchi，Tetsuya Yokotani，Yoshihiro Moriki.vlan control inEthernet PON system.Toshihisa Hane;Toshiya Fukuda Katsuaki Kikuchi，2002：20-24
7. 马晓凯，周霞，郭志伟等编著.计算机网络技术及应用.冶金工业出版社，2004 年：34-37
8. Akira Nagata,Hitoshi Ueno.vlan design algorithm for transparent LANservice with MSTP.Keiji Miyazaki Akira Chugo，2002：54-56
9. Kirwin,J.P.Asynchronous Transfer Mode and Local Area Network EmulationStandards,Protocols,211 and Security Implications~Master's thesis，1999：551-555
10. 侯亮.IPv6网络安全系统研究与原型设计.电子工业出版社，2004年：48-50
11. 李毅.网络系统中的安全认证协议的研究.http://www.supinfo-projects.com，2004年
12. 王贵文，黎文福.浅谈基于第三层vlan子网的网络地址规划，http://www.cnpaf.net，2003年
13. 陈宇晓冯江华.vlan技术综述.科学出版社，2002年：20-27
14. 许娅丽.第3层交换与vlan的应用.北京邮电大学学报，1999年03期，105-108
15. Chan Wai Kok.Efficient routing for IP subnet vlan over Ethernet.M.SalimBeg，2002：48-50
16. 吴常国，沈金龙，陈慧南，杨庚.虚拟局域网技术应用分析研究.计算机应用研究，2000-8：69-72
17. 田虹.基于策略的VLAN技术及其在网络规划中的应用.武汉工业大学学报，2000-3
18. [美]Bito Amato.思科网络技术学院教程.译：韩江马刚.人民邮电出版社，2000-10：203-209
19. Rik Farrow.vlans:Virtually Insecure.http://www.pcdog.com，2003年
20. 蒋书波.VLAN技术在分布式测控系统中的应用.工业控制计算机，2002年第01期，75-83
21. 李晓宁.Internet/Intranet技术.高等教育出版社，2003年：60-68
22. 李秀艳.宽带IP网运营支持系统的研究.人民邮电出版社，2003年：203-209
23. Sean A,Ahrens.The Digital Bandwagon.http://www.vlanimmo.be/，2002
24. 杨本臣.基于宽带网络的小区智能化系统研究.电子工业出版社，2004年：80-83
25. 辽阳宽带网络的运营与研究.http://www.lyip.com.cn/，2005
26. 范建学，丁晓蔚.vlan技术在宽带IP城域网中的应用.清华大学出版社，2002年：68
27. 李红.IP宽带接入控制系统分析与设计.人民邮电出版社，2003年：19-23
28. 牛旭颖.河南通信宽带网建设方案及网络性能分析.http://www.enet.com.cn/，2004年
29. 王达.网络硬件及配置标准教程.人民邮电出版社，2004年：80-85
30. 张杰.实用组网技术.科学出版社，2005-8：40-46
31. 唐丽化.三层交换与VLAN技术在校园网中的应用.浙江林业学报，2002年第01期，33-26
32. 魏力生.以太技术在城域传送网的应用http://www.vlanimmo.be/，2003年
33. 王竑弢.通信工程项目管理系统设计与实现.机械工业出版社，2004年：31-35
34. Eruo Kaganoi,Youichi Ogawa,Hitoshi Maruoka.A proposal for Ethernet-PPPpacket transmission mechanism Jun Kametani.AkioHarasawa Akio Iijima，2003：254-256
35. 李俊宇编.信息安全技术基础.冶金工业出版社，2003年：95
36. 赵利.抚顺有线台小区宽带Internet接入网.http://www.hackhome.com，2003
37. 张军祥.vlan和交换技术和在机关局域网中的应用.http://www.hackhome.com，1999年
38. 王媛媛，金连甫.vlan技术在宽带接入网中的应用与实现.人民邮电出版社，2003年：47
39. 车保霞.VLAN技术研究及其在校园网中的实现.机械工业出版社，2004年：71
40. 徐琨，梁婷.以太网宽带接入技术.人民邮电出版社，2002年：102-104
41. 杨悦.千兆以太网交换机的硬件设计.机械工业出版社，2003年：137-139
42. 占亿民，林宝成，陈松.城域虚拟专网技术研究.机械工业出版社，2003年：99
43. Simulation and analysis of very large area networks(vlan)usinganinformation flow model Wolf,J.J.,III;Ghosh,B，1988：248-252
44. 交换机端口trunk属性配置.http://www.hbu.cn，2005
45. 雷振甲，张荣琴.计算机网络管理及系统开发.北京电子工业出版社，2002：95
46. 雷振明.基于vlan的以太网流量均衡选路算法.人民邮电出版社，2003年：156-158
47. Illegal Access Prevention Technology by Authentication Virtual LANHirofumi KAKIUCHI;Hidekazu TANNO;Yoshiaki HOSHINO;TomohikoTANIKAWA;Yoshinaga SEKI，2003：260-267
48. Vlan Management System on Large-scale Network Takao Miyamoto;TakeshiTamura;Ryouji Suzuki，2000：61-63
2. VLAN技术在宽带接入系统中的应用.http://www.cnpaf.net，2005
3. 杨大全.计算机网络.东北大学出版社，2004-02：69-72
4. 林雄忠.虚拟局域网(vlan)技术.电子工业出版社，2003年：1-15
5. 陈虎.可堆叠vlan在城域网中应用的研究.吉林大学信息工程学院，2003：36
6. Hironori Terauchi，Tetsuya Yokotani，Yoshihiro Moriki.vlan control inEthernet PON system.Toshihisa Hane;Toshiya Fukuda Katsuaki Kikuchi，2002：20-24
7. 马晓凯，周霞，郭志伟等编著.计算机网络技术及应用.冶金工业出版社，2004 年：34-37
8. Akira Nagata,Hitoshi Ueno.vlan design algorithm for transparent LANservice with MSTP.Keiji Miyazaki Akira Chugo，2002：54-56
9. Kirwin,J.P.Asynchronous Transfer Mode and Local Area Network EmulationStandards,Protocols,211 and Security Implications~Master's thesis，1999：551-555
10. 侯亮.IPv6网络安全系统研究与原型设计.电子工业出版社，2004年：48-50
11. 李毅.网络系统中的安全认证协议的研究.http://www.supinfo-projects.com，2004年
12. 王贵文，黎文福.浅谈基于第三层vlan子网的网络地址规划，http://www.cnpaf.net，2003年
13. 陈宇晓冯江华.vlan技术综述.科学出版社，2002年：20-27
14. 许娅丽.第3层交换与vlan的应用.北京邮电大学学报，1999年03期，105-108
15. Chan Wai Kok.Efficient routing for IP subnet vlan over Ethernet.M.SalimBeg，2002：48-50
16. 吴常国，沈金龙，陈慧南，杨庚.虚拟局域网技术应用分析研究.计算机应用研究，2000-8：69-72
17. 田虹.基于策略的VLAN技术及其在网络规划中的应用.武汉工业大学学报，2000-3
18. [美]Bito Amato.思科网络技术学院教程.译：韩江马刚.人民邮电出版社，2000-10：203-209
19. Rik Farrow.vlans:Virtually Insecure.http://www.pcdog.com，2003年
20. 蒋书波.VLAN技术在分布式测控系统中的应用.工业控制计算机，2002年第01期，75-83
21. 李晓宁.Internet/Intranet技术.高等教育出版社，2003年：60-68
22. 李秀艳.宽带IP网运营支持系统的研究.人民邮电出版社，2003年：203-209
23. Sean A,Ahrens.The Digital Bandwagon.http://www.vlanimmo.be/，2002
24. 杨本臣.基于宽带网络的小区智能化系统研究.电子工业出版社，2004年：80-83
25. 辽阳宽带网络的运营与研究.http://www.lyip.com.cn/，2005
26. 范建学，丁晓蔚.vlan技术在宽带IP城域网中的应用.清华大学出版社，2002年：68
27. 李红.IP宽带接入控制系统分析与设计.人民邮电出版社，2003年：19-23
28. 牛旭颖.河南通信宽带网建设方案及网络性能分析.http://www.enet.com.cn/，2004年
29. 王达.网络硬件及配置标准教程.人民邮电出版社，2004年：80-85
30. 张杰.实用组网技术.科学出版社，2005-8：40-46
31. 唐丽化.三层交换与VLAN技术在校园网中的应用.浙江林业学报，2002年第01期，33-26
32. 魏力生.以太技术在城域传送网的应用http://www.vlanimmo.be/，2003年
33. 王竑弢.通信工程项目管理系统设计与实现.机械工业出版社，2004年：31-35
34. Eruo Kaganoi,Youichi Ogawa,Hitoshi Maruoka.A proposal for Ethernet-PPPpacket transmission mechanism Jun Kametani.AkioHarasawa Akio Iijima，2003：254-256
35. 李俊宇编.信息安全技术基础.冶金工业出版社，2003年：95
36. 赵利.抚顺有线台小区宽带Internet接入网.http://www.hackhome.com，2003
37. 张军祥.vlan和交换技术和在机关局域网中的应用.http://www.hackhome.com，1999年
38. 王媛媛，金连甫.vlan技术在宽带接入网中的应用与实现.人民邮电出版社，2003年：47
39. 车保霞.VLAN技术研究及其在校园网中的实现.机械工业出版社，2004年：71
40. 徐琨，梁婷.以太网宽带接入技术.人民邮电出版社，2002年：102-104
41. 杨悦.千兆以太网交换机的硬件设计.机械工业出版社，2003年：137-139
42. 占亿民，林宝成，陈松.城域虚拟专网技术研究.机械工业出版社，2003年：99
43. Simulation and analysis of very large area networks(vlan)usinganinformation flow model Wolf,J.J.,III;Ghosh,B，1988：248-252
44. 交换机端口trunk属性配置.http://www.hbu.cn，2005
45. 雷振甲，张荣琴.计算机网络管理及系统开发.北京电子工业出版社，2002：95
46. 雷振明.基于vlan的以太网流量均衡选路算法.人民邮电出版社，2003年：156-158
47. Illegal Access Prevention Technology by Authentication Virtual LANHirofumi KAKIUCHI;Hidekazu TANNO;Yoshiaki HOSHINO;TomohikoTANIKAWA;Yoshinaga SEKI，2003：260-267
48. Vlan Management System on Large-scale Network Takao Miyamoto;TakeshiTamura;Ryouji Suzuki，2000：61-63