詞語解釋
PDNS是Public Data Network Service的縮寫,是一種公共數(shù)據(jù)網(wǎng)絡(luò)服務(wù)。它是一種使用公共數(shù)據(jù)網(wǎng)絡(luò)技術(shù),實現(xiàn)多種不同類型的數(shù)據(jù)傳輸?shù)姆⻊?wù)。它是由公共數(shù)據(jù)網(wǎng)絡(luò)(PDN)技術(shù)提供的一種服務(wù),可以實現(xiàn)點對點的數(shù)據(jù)傳輸,也可以實現(xiàn)多點之間的數(shù)據(jù)傳輸。 PDNS的應(yīng)用主要分為兩類:一類是點對點的數(shù)據(jù)傳輸,可以實現(xiàn)從一個計算機(jī)到另一個計算機(jī)之間的數(shù)據(jù)傳輸;另一類是多點之間的數(shù)據(jù)傳輸,可以實現(xiàn)從一臺計算機(jī)到多臺計算機(jī)之間的數(shù)據(jù)傳輸。 PDNS的應(yīng)用場景主要有以下幾種: 1、點對點的數(shù)據(jù)傳輸:可以實現(xiàn)從一臺計算機(jī)到另一臺計算機(jī)之間的數(shù)據(jù)傳輸,如文件傳輸、視頻傳輸?shù)取? 2、多點之間的數(shù)據(jù)傳輸:可以實現(xiàn)從一臺計算機(jī)到多臺計算機(jī)之間的數(shù)據(jù)傳輸,如網(wǎng)絡(luò)游戲、多人聊天等。 3、網(wǎng)絡(luò)會議:可以實現(xiàn)多人同時參加網(wǎng)絡(luò)會議,如視頻會議、在線培訓(xùn)等。 4、網(wǎng)絡(luò)視頻傳輸:可以實現(xiàn)多人同時觀看視頻,如網(wǎng)絡(luò)電視、在線電影等。 PDNS的應(yīng)用非常廣泛,它可以實現(xiàn)點對點的數(shù)據(jù)傳輸,也可以實現(xiàn)多點之間的數(shù)據(jù)傳輸,可以實現(xiàn)網(wǎng)絡(luò)會議,也可以實現(xiàn)網(wǎng)絡(luò)視頻傳輸?shù)龋瑸榫W(wǎng)絡(luò)應(yīng)用提供了極大的便利。 PDSN A Packet Data Serving Node (PDSN) provides access to the Internet, intranets and applications servers for mobile stations utilizing a cdma2000 Radio Access Network (RAN). Acting as an access gateway, PDSN provides simple IP and mobile IP access, foreign agent support, and packet transport for virtual private networking. It acts as a client for Authentication, Authorization, and Accounting (AAA) servers and provides mobile stations with a gateway to the IP network. Mobility differentiates Cisco’s PDSN from the traditional routed network. With PDSN, the host can move and, therefore, there must be a way to forward packets to it. Cisco's PDSN solution offers a secure way to provide packet data services to mobile stations. 分組業(yè)務(wù)數(shù)據(jù)節(jié)點 相對于CDMAOne網(wǎng)絡(luò),與CDMA 2000系統(tǒng)相關(guān)聯(lián)的PDSN是一個新部件。在處理所提供的分組數(shù)據(jù)業(yè)務(wù)時,PDSN是一個基本單元。其作用是支持分組數(shù)據(jù)業(yè)務(wù),在分組數(shù)據(jù)的會話過程中,執(zhí)行下列主要功能: 1、建立、維護(hù)和終斷用戶的PPP會話; 2、支持簡單和移動IP分組業(yè)務(wù); 3、通過無線分組接口建立、維持和終斷與無線網(wǎng)絡(luò)的邏輯鏈接; 4、進(jìn)行移動臺用戶到AAA服務(wù)器的認(rèn)證、授權(quán)和計費; 5、接受來自AAA服務(wù)器的對于移動用戶的服務(wù)參數(shù); 6、路由去往和來自外部分組數(shù)據(jù)網(wǎng)的數(shù)據(jù)包; 7、收集轉(zhuǎn)接到AAA服務(wù)器的使用數(shù)據(jù)等。
PDSN A Packet Data Serving Node (PDSN) provides access to the Internet, intranets and applications servers for mobile stations utilizing a cdma2000 Radio Access Network (RAN). Acting as an access gateway, PDSN provides simple IP and mobile IP access, foreign agent support, and packet transport for virtual private networking. It acts as a client for Authentication, Authorization, and Accounting (AAA) servers and provides mobile stations with a gateway to the IP network. Mobility differentiates Cisco’s PDSN from the traditional routed network. With PDSN, the host can move and, therefore, there must be a way to forward packets to it. Cisco's PDSN solution offers a secure way to provide packet data services to mobile stations. 分組業(yè)務(wù)數(shù)據(jù)節(jié)點 相對于CDMAOne網(wǎng)絡(luò),與CDMA 2000系統(tǒng)相關(guān)聯(lián)的PDSN是一個新部件。在處理所提供的分組數(shù)據(jù)業(yè)務(wù)時,PDSN是一個基本單元。其作用是支持分組數(shù)據(jù)業(yè)務(wù),在分組數(shù)據(jù)的會話過程中,執(zhí)行下列主要功能: 1、建立、維護(hù)和終斷用戶的PPP會話; 2、支持簡單和移動IP分組業(yè)務(wù); 3、通過無線分組接口建立、維持和終斷與無線網(wǎng)絡(luò)的邏輯鏈接; 4、進(jìn)行移動臺用戶到AAA服務(wù)器的認(rèn)證、授權(quán)和計費; 5、接受來自AAA服務(wù)器的對于移動用戶的服務(wù)參數(shù); 6、路由去往和來自外部分組數(shù)據(jù)網(wǎng)的數(shù)據(jù)包; 7、收集轉(zhuǎn)接到AAA服務(wù)器的使用數(shù)據(jù)等。
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