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來源資料
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題 名 | BB-RAS技術發展之介紹=The Introduction of Technology Development for BB-RAS |
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作 者 | 梁銘顯; 陳一輝; 伍正平; 林信志; | 書刊名 | 電信研究 |
卷 期 | 31:3 2001.06[民90.06] |
頁 次 | 頁243-264 |
分類號 | 448.6 |
關鍵詞 | 寬頻遠端接取伺服器; 質疑交握驗證協定; 客戶前端接取設備; 動態主機設定協定; IP控制協定; 網際網路服務供應商; 第二層通道化協定; 鏈結控制協定; 最大接收單位; 網路接取伺服器; 網路位址轉換; 網路控制協定; 密碼驗證協定; 點對點通訊協定; 虛擬私有網路; 遠端撥入使用者驗證服務; BroadBand remote access server; BB-RAS; Challenge handshake authentication protocol; CHAP; Customer premise access device; CPAD; Internet protocol control protocol; IPCP; Internet service provider; ISP; Layer 2 tunneling protocol; L2TP; Link control protocol; LCP; Maximum receive unit; MRU; Network Access server; NAS; Network address translation; NAT; Network control protocol; NCP; Password authentication protocol; PAP; Point-to-point protocol; PPP; Virtual private network; VPN; Remote authentication dial-in user service; RADIUS; Dynamic host configuration protocol; DHCP; |
語 文 | 中文(Chinese) |
中文摘要 | 目前中華電信ATM/ADSL寬頻接取網路系採PVC方式建網路,一旦網路有所變動 時,調整不易且維護困難,經營上較受限制。BB-RAS (Broad-Remote access Server)不但可解 除目前寬頻接取網路之限制,而且在NGN(Next Generation Network)扮演極重要的角色。 BB-RAS之諸多重要特性如:流量聚集(Aggregation)、頻寬管理、動態服務選擇虛擬路由器等, 既可減少核心ATM點對點架構的缺失,亦能利用動態服務選擇,使用戶方便又容易存取網 路。由於BB-RAS所具有的特性及其對寬頻的處理能力,讓業者得以供助BB-RAS的長才推 出新服務或應用。從最早的流量聚集、xDSL撥接和目前非常熱門的虛擬私有網路(Virtual Private Network, VPN)都是BBPRAS的成功應用。 |
英文摘要 | In this stage, Chunghwa Telecom deploys ADSL access network employing ATM point-to-point architecture that has a PVC provisioned through the core to the endpoint for each user. As the network changes, it will be difficult to configure and maintain the network. BB-RAS releases the broadband access limitations and plays an important role in next generation network. There are so many important firewalls, dynamic service selection and virtual routers. Aggregation of xDSL traffic into trunk PVCs reduces the number of VC connections across the network and then resolves the shortcoming of the ATM point-to-point architecture. The dynamic service selection enables and users to access network more easy and convenient. With so many broadband access features, the BB-RAS enables providers to cost-effectively provision and deliver services to subscribers. At first, BB-RAS is used to provide xDSL traffic aggregation. But, growing up with requirements, more applications, such as virtual private network for enterprises, will be implemented by BB-RAS. |
本系統中英文摘要資訊取自各篇刊載內容。