《網(wǎng)絡管理》第三版PPT課件
網(wǎng)絡管理第三版PPT課件,網(wǎng)絡管理,網(wǎng)絡,管理,第三,PPT,課件
網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 1網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 Network Self-Healing Technology lOptical fiber based transport network(SDH/SONET)Huge transmission capacityHigh reliability requirement Various causes leading to fault lNetwork Survivability and Self-Healing Automatically reconfigure networks to protect services from physical failures2網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 Self-Healing SystemslAPSAutomatic Protection SwitcheslSHRSelf-Healing RingslSHN and DRASelf-Healing NetworksDigital cross-connect systems basedCentralized and distributed control3網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 lRestoration speedCustomers have different requirementslStrict:100%restoration in not more than 50 mslTolerant:30 minutes Connection Dropping Threshold(CDT):2slMust adopt distributed control mode4網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 Automatic Protection Switching lTwo types of APSl1+1APS1 working channel has 1 protection channelThe head end is permanently bridgedThe decision to switch is made by the tail endl1:n APSn working channels share a single protection channel1:1 APS is different from 1:n APS5網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 APS Protocol lRealize via the K1,K2 bytes in the SDH Segment OverheadlK1 is for reverse request(for bidirectional switching)lK2 is for confirmation6網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 Self-Healing Ring lThe types of SHRBidirectional SHR with 4 fibers7網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 Unidirectional SHR8網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 lSelf-Healing control schemesLine protection switchinglUse line overhead for switchinglRestore line demand from a failed facilityPath protection switchinglUse path overhead for switchinglRestore individual end-to-end service channel9網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 Unidirectional Self-Healing Ring lLine switched U-SHR(U-SHR/APS)10網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 11網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 lPath switched U-SHR(U-SHR/PP)12網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 13網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 Bidirectional Self-Healing RinglB-SHR/414網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 15網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 lB-SHR/216網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 17網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 Distributed Restoration lFundamental conceptsDCS based transmission networklEach DCS can be considered as a computer with multiple communication links and high processing powerlEach DCS is a node which can computes the path set within its own topology scopelEach node can run its database without depending on others18網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 lTerminology Link:an individual bidirectional carrier signal between two adjacent notes Path:a concatenation of links through the networkSpan:the set of all links in parallel between two adjacent nodesRoute:formed by concatenated spans Working link:carries live trafficSpare link:is in a fully equipped but is not in serviceAdjacent nodes:are directly connected by a spanCustodial nodes:are adjacent to the failure spanRestoration path:assembled from spare links in the network19網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 lSpan and path restoration Original path with failure Span restoration 20網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 Intermediate partial path restoration Path restoration21網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 網(wǎng)網(wǎng) 絡絡 管管 理理 教教 程程 lRestoration and routing Restoration of a span-cut requires multiple unique replacement paths between the custodial nodes,the target number of paths is the number of working links failed Each restoration path must be a completely closed transmission pathA carrier signal completely fills a restoration path in space,time and frequencyThe restoration path-set must be mutually link-disjoint throughout and collectively consistent with the whole number link capacities of each span of the network22
收藏
編號:65492060
類型:共享資源
大?。?span id="zox5ffl" class="font-tahoma">6.81MB
格式:ZIP
上傳時間:2022-03-24
40
積分
- 關 鍵 詞:
-
網(wǎng)絡管理
網(wǎng)絡
管理
第三
PPT
課件
- 資源描述:
-
《網(wǎng)絡管理》第三版PPT課件,網(wǎng)絡管理,網(wǎng)絡,管理,第三,PPT,課件
展開閱讀全文
- 溫馨提示:
1: 本站所有資源如無特殊說明,都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請下載最新的WinRAR軟件解壓。
2: 本站的文檔不包含任何第三方提供的附件圖紙等,如果需要附件,請聯(lián)系上傳者。文件的所有權益歸上傳用戶所有。
3.本站RAR壓縮包中若帶圖紙,網(wǎng)頁內(nèi)容里面會有圖紙預覽,若沒有圖紙預覽就沒有圖紙。
4. 未經(jīng)權益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
5. 裝配圖網(wǎng)僅提供信息存儲空間,僅對用戶上傳內(nèi)容的表現(xiàn)方式做保護處理,對用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯,并不能對任何下載內(nèi)容負責。
6. 下載文件中如有侵權或不適當內(nèi)容,請與我們聯(lián)系,我們立即糾正。
7. 本站不保證下載資源的準確性、安全性和完整性, 同時也不承擔用戶因使用這些下載資源對自己和他人造成任何形式的傷害或損失。
裝配圖網(wǎng)所有資源均是用戶自行上傳分享,僅供網(wǎng)友學習交流,未經(jīng)上傳用戶書面授權,請勿作他用。