The Design And Implementation Of Yong Kang Telecommunications Ip Metropolitan Area Network's Alteration And Improvement

ZheJiang Telecom Broad Band business developed rapidly, up to september,2006, the Broad Band consumer have been increased to 2270000. The IPTV broadcast opened and various kinds of internet payment emerged, The HuLianXingKong of ZheJiang telecom begin the service of prepaid on internet. But the construction of ZheJiang telecom broad band network started from year 2001, the user name for all the consumers are commonly named as "jhkd+telephone number" (jhkd are short for the first letter of the JinHuaKuanDai spelling), the password is commonly the "telephone number" very easy to be known by those cankered guys. When work together with the policeman to lookup the criminal's IP address, it is very easy for us to verify their accounts according to the IP address, but due to the accounts and the user actual address can not be binded precisely, it is very hard for us to verify the user actual address according to the accounts when the user's accounts stolen.In order to prevent the broad band stolen, promote the value-added business develop, facilitate the IP city domain net ameliorate from present single internet to comprehensive.The JinHua IP City Domain Net Group which is formed by the Engineer KuaiWei who is from ZheJiang University and the data director from all the sub-branch of JinHua Telecom put forward the general technic programs for the JinHua telecom IP City Domain Net improvement project. Being the data director of YongKang telecom, I am so lucky to attend the design of this project, I am mainly in charge of YongKang telecom IP City Domain Net improvement contents, and implement the task of YongKang telecom IP City Domain Net improvements.The principle of this network improvement are: network level clearly,network structure flatly,network quality diversity,management dominate centralize,equipment demand standardization.The main contents of the year 2006 improvement project:Enlarge the capacity of the router link and port according to the business development; increase(or share with SR) the collection router in some city based en the reality demands,solve the single outlet safty trouble of those cities which are with big demand.Enlarge the BRAS capacity according to the consumer, bandwidth increasement, solve the high frequence SHASTA trouble through reduce the load and double backup; Upgrade the 6509 engine, solve the 6509 trouble point; Satisfy the requirement for the low infiltration ratio(3%)IPTV, assure the IPTV bandwidth via adjust the network structure.Increase(or upgrade the present equipment) SR to satisfy the business development and the requirement for the connection to CN2; SR and the BRAS formed the City Domain Net business control layerRebuild the second layer network, try to carry out per user per VLAN in the whole city, according to the reality, implement per serve per VLAN in necessary place;Make sure to guarantee the single line,AG,IAD bandwidth quality through adjust the network structure and improve the old equipment.Through this network improvement and capacity enlarge, I deeply learn the MPLS VPV,City domain net broadcast,flexible exchange and QinQ Technic, familiar with the development and the link bandwidth of JinHua telecom IP City Domain Net, familiar with the new function and the basic maintaince of the YongKang telecom new equipment, also familiar with the procedure and order to the future various business, all of these will build the strong fundation to better maintain the YongKang telecom IP city domain net in future.