1、企業(yè)網(wǎng)絡(luò)設(shè)計1. 課程設(shè)計目的1、增加對計算機網(wǎng)絡(luò)軟、硬件組成的感性認識初步學(xué)會典型局域網(wǎng)絡(luò)的操作、使用技能；2、加深理解網(wǎng)絡(luò)分層結(jié)構(gòu)概念尤其是對會話層、表示層、應(yīng)用層等高層協(xié)議軟件的通信功能、實現(xiàn)方法，掌握網(wǎng)絡(luò)互連設(shè)備的使用及工作原理，掌握IP地址的配置；3、初步掌握局域網(wǎng)的設(shè)計技術(shù)和技巧培養(yǎng)開發(fā)網(wǎng)絡(luò)應(yīng)用的獨立工作能力。2. 設(shè)計方案論證2.1設(shè)計思路2.1.1總體設(shè)計思路進行企業(yè)網(wǎng)絡(luò)總體設(shè)計，首先，進行對象研究和需求調(diào)查，弄清企業(yè)的性質(zhì)、 任務(wù)和特點，對企業(yè)的信息化環(huán)境進行準確的描述，明確系統(tǒng)建設(shè)的需求和條件； 其次，在應(yīng)用需求分析的基礎(chǔ)上，確定企業(yè)In tra net 服務(wù)類型，進而確定

2、系統(tǒng)建設(shè)的具體目標(biāo)，包括網(wǎng)絡(luò)設(shè)施、站點設(shè)置、開發(fā)應(yīng)用和管理等方面的目標(biāo)；第三， 確定網(wǎng)絡(luò)拓撲結(jié)構(gòu)和功能，根據(jù)應(yīng)用需求、建設(shè)目標(biāo)和學(xué)校主要建筑分布特點，進 行系統(tǒng)分析和設(shè)計；第四，確定技術(shù)設(shè)計的原則要求，如在技術(shù)選型、布線設(shè)計、 設(shè)備選擇、軟件配置等方面的標(biāo)準和要求；第五，規(guī)劃安排企業(yè)網(wǎng)建設(shè)的實施步 驟。2.1.2網(wǎng)絡(luò)設(shè)計將網(wǎng)絡(luò)中心設(shè)在D座樓，支持遠程教案，可以接入互聯(lián)網(wǎng)，具有廣域網(wǎng)訪問的 安全機制和網(wǎng)絡(luò)管理功能。以 D座樓為中心，用光纖連接到其它建筑物，構(gòu)成校園 網(wǎng)光纖主干。網(wǎng)絡(luò)結(jié)構(gòu)分成三層：核心層、匯聚層、接入層。<1）終端用戶包括：A座樓有48個校園網(wǎng)普通用戶；B座樓有1個包含24個

3、多媒體用戶的電子閱覽室；C座樓有1個包含48個用戶的多媒體教室（性能要求高于電子閱覽室>。D座樓是網(wǎng)絡(luò)中心 <2）支持遠程教案，可以接入互聯(lián)網(wǎng)，具有廣域網(wǎng)訪問的安全機制和網(wǎng)絡(luò)管理功<3）各樓之間的距離為500M因為各座樓之間的距離是 500M而雙絞線的最遠距離是 100M所以基于對條 件要求的考慮，我們需要選擇光纖或串行線作為傳輸介質(zhì)?？紤]傳輸高速率和擴展 的需求，企業(yè)網(wǎng)樓與樓之間采用光纖傳輸。網(wǎng)絡(luò)主干采用多模光纖。網(wǎng)絡(luò)中心到主 建筑物結(jié)點采用多模光纖連接。布線采用星形拓撲結(jié)構(gòu)，這樣當(dāng)過渡到ATM時，不需要重新布線可使整個網(wǎng)絡(luò)保持原有的拓撲結(jié)構(gòu)。以上特點分層網(wǎng)絡(luò)結(jié)構(gòu)可以獲得

4、良好的擴展性，根據(jù)實際需求，整個企業(yè)網(wǎng)采用星型結(jié)構(gòu)，由D座樓出發(fā)，延伸到ABC座樓。再從各個樓出發(fā)，以同軸電纜作為傳輸介質(zhì)。由云到D座樓為A類網(wǎng)，由D座樓到各個樓之間為B類網(wǎng)，各個內(nèi)部為C類網(wǎng)。對于整個網(wǎng)絡(luò)的拓撲結(jié)構(gòu)為混合型結(jié)構(gòu)，以路由器為網(wǎng)絡(luò)中心的星型結(jié)構(gòu)，各 部門以交換機為主結(jié)點的樹型結(jié)構(gòu)。因為計算機與網(wǎng)絡(luò)技術(shù)的特殊性，網(wǎng)絡(luò)建設(shè)需要考慮以下一些因素：系統(tǒng)的先 進性、體統(tǒng)的穩(wěn)定性、系統(tǒng)的可擴展性、系統(tǒng)的可維護性、應(yīng)用系統(tǒng)和網(wǎng)絡(luò)系統(tǒng)的 配合度、與外界網(wǎng)絡(luò)的連通性、建設(shè)成本的可接受度等。2.1.3具體設(shè)計表1校園網(wǎng)設(shè)備選擇表樓座設(shè)備型號數(shù)量A座樓RouterRouter-PT1Switch296

5、0-242PCPC-PT4RouterRouter-PT2B座樓Switch2950T-242ServerServer-PT1PCPC-PT4C座樓RouterRouter-PT1Switch2950T-242PCPC-PT2SererServer-PT1D座樓RouterRouter-PT1CloudCloud-PT1表2設(shè)備連接表樓號設(shè)備1設(shè)備2設(shè)備之間的連線A座樓RouterRouter光纖RouterSwitch交叉雙絞線SwitchPC直通雙絞線B座樓RouterRouter光纖、串行線RouterSwitch直通雙絞線SwitchPC直通雙絞線SwitchServer直通雙絞線C座

6、樓RouterSwitch直通雙絞線SwitchPC直通雙絞線SwitchServer直通雙絞線SwitchSwitch交叉雙絞線D座樓RouterRouter光纖RouterCloud串行線表3主機IP地址及網(wǎng)關(guān)主機ip地址默認網(wǎng)關(guān)PC0192.168.32.2192.168.32.1PC1192.168.32.3192.168.32.1PC2192.168.33.2192.168.33.1PC3192.168.33.3192.168.33.1PC4192.168.1.3192.168.1.1PC5192.168.1.2192.168.1.1PC6192.168.5.3192.168.5.1

7、PC7192.168.5.2192.168.5.1PC8192.168.4.2192.168.4.1PC9192.168.4.3192.168.4.1Serverl192.168.1.4192.168.1.1Server2192.168.4.4192.168.4.1表4主機IP地址及網(wǎng)關(guān)主機ip地址默認網(wǎng)關(guān)PC0192.168.32.2192.168.32.1PC1192.168.32.3192.168.32.1PC2192.168.33.2192.168.33.1PC3192.168.33.3192.168.33.1PC4192.168.1.3192.168.1.1PC5192.168.1.

8、2192.168.1.1PC6192.168.5.3192.168.5.1PC7192.168.5.2192.168.5.1PC8192.168.4.2192.168.4.1PC9192.168.4.3192.168.4.1Server1192.168.1.4192.168.1.1Server2192.168.4.4192.168.4.1PC-PTPCO960-241Switch 1CloSwitchPC-PTPCIPC'PTPC?一專咚outer-l£uter-PTRouter624TT Switch 2PC-PTPCSR.ou1Kouter-PT二號建P 匚-PTPC3P

9、C-PTPC9PC-PTPC5Server-PTServer2PC-PTPC4295QT*24SwitchGServer-PTServerl拓撲圖如下:圖1網(wǎng)絡(luò)拓撲圖2.2相關(guān)代碼路由器D座樓的配置：Router>e nableRouter#c on figure termi nalEn ter con figurati on comma nds, one per line. End with CNTL/Z.Router(c on fig># in terface Serial2/0Router(c on fig-if>#%LINK-5-CHANGED: In terface

10、 Serial2/0, cha nged state to upno shutdow n Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface Serial3/0Router(c on fig-if># no shutdow nRouter(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther net4/ORouter(c on fig-if># no shu

11、tdow n%LINK-5-CHANGED: In terface FastEthernet4/O, cha nged state to dow n Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther net5/0Router(c on fig-if># no shutdow n%LINK-5-CHANGED: In terface FastEthernet5/0, cha nged state to dow n Router(c on fig-if>

12、#Router(c on fig-if>#exitRouter(c on fig># in terface Serial2/0Router(c on fig-if># no ip addressRouter(co nfig-if>#ip address 10.0.0.2 255.0.0.0Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface Serial3/0Router(co nfig-if>#ip address 172.18.0.1 255.255.

13、0.0Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther net4/0Router(co nfig-if>#ip address 172.16.0.1 255.255.0.0Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther net5/0Router(co nfig-if>#ip address 172.17.0.1 25

14、5.255.0.0 Router(c on fig-if>#在D座樓中設(shè)置靜態(tài)路由Router>e nableRouter#c on figure termi nalEn ter con figurati on comma nds, one per line. End with CNTL/Z.Router(co nfig>#ip route 192.168.32.0 255.255.255.0 172.16.0.2Router(co nfig>#ip route 192.168.33.0 255.255.255.0 172.16.0.2Router(co nfig>

15、;#ip route 192.168.1.0 255.255.255.0 172.18.0.2Router(co nfig>#ip route 192.168.4.0 255.255.255.0 172.17.0.2Router(co nfig>#ip route 192.168.5.0 255.255.255.0 172.17.0.2 Router(c on fig>#路由器A座樓的配置：Router>e nableRouter#c on figure termi nalEn ter con figurati on comma nds, one per line. E

16、nd with CNTL/Z.Router(c on fig># in terface FastEther net0/0Router(c on fig-if># no shutdow n%LINK-5-CHANGED: In terface FastEthernet0/0, cha nged state to up %LINEPROTO-5-UPDOWN: Line protocol on In terface FastEthernet0/0, changed state to up Router(c on fig-if>#Router(c on fig-if>#exi

17、tRouter(c on fig># in terface FastEther net1/0Router(c on fig-if># no shutdow n%LINK-5-CHANGED: In terface FastEthernet1/0, cha nged state to up %LINEPROTO-5-UPDOWN: Line protocol on In terface FastEthernet1/0, changed state to up Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on f

18、ig># in terface FastEther net4/0Router(c on fig-if># no shutdow n%LINK-5-CHANGED: In terface FastEthernet4/O, cha nged state to up %LINEPROTO-5-UPDOWN: Line protocol on In terface FastEthernet4/0, changed state to up Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in ter

19、face Serial3/0Router(c on fig-if># no shutdow nRouter(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther netO/ORouter(co nfig-if>#ip address 192.168.32.1 255.255.255.0Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther n

20、et1/0Router(co nfig-if>#ip address 192.168.33.1 255.255.255.0Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther net4/0Router(co nfig-if>#ip address 172.16.0.2 255.255.0.0Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface S

21、erial3/0Router(co nfig-if>#ip address 192.168.31.1 255.255.255.0Router(c on fig-if>#在A座樓中設(shè)置靜態(tài)路由Router>e nableRouter#c on figure termi nalEn ter con figurati on comma nds, one per line. End with CNTL/Z.Router(co nfig>#ip route 192.168.1.0 255.255.255.0 172.16.0.1Router(co nfig>#ip rout

22、e 192.168.4.0 255.255.255.0 172.16.0.1Router(co nfig>#ip route 192.168.5.0 255.255.255.0 172.16.0.1 Router(c on fig>#路由器B座樓的配置：Router>e nableRouter#c on figure termi nalEn ter con figurati on comma nds, one per line. End with CNTL/Z.Router(c on fig># in terface FastEther net0/0Router(c o

23、n fig-if># no shutdow n%LINK-5-CHANGED: In terface FastEthernet0/0, cha nged state to up %LINEPROTO-5-UPDOWN: Line protocol on In terface FastEthernet0/0, changed state to up Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther net5/0Router(c on fig-if>#

24、no shutdow n%LINK-5-CHANGED: In terface FastEthernet5/0, cha nged state to up %LINEPROTO-5-UPDOWN: Line protocol on In terface FastEthernet5/0, changed state to up Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface Serial2/0Router(c on fig-if># no shutdow nRouter(c

25、on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther net0/0Router(co nfig-if>#ip address 192.168.4.1 255.255.255.0Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther net5/0Router(co nfig-if>#ip address 172.17.0.2 255.255.0.0

26、Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface Serial2/0Router(co nfig-if>#ip address 192.168.3.1 255.255.255.0Router(c on fig-if>#在B座樓中設(shè)置靜態(tài)路由Router>e nableRouter#c on figure termi nalEn ter con figurati on comma nds, one per line. End with CNTL/Z.Router(c

27、o nfig>#ip route 192.168.5.0 255.255.255.0 192.168.3.2Router(co nfig>#ip route 192.168.32.0 255.255.255.0 172.17.0.1Router(co nfig>#ip route 192.168.33.0 255.255.255.0 172.17.0.1Router(co nfig>#ip route 192.168.1.0 255.255.255.0 172.17.0.1Router(c on fig>#路由器Router 6的配置：Router>e na

28、bleRouter#c on figure termi nalEn ter con figurati on comma nds, one per line. End with CNTL/Z.Router(c on fig># in terface FastEther net0/0Router(c on fig-if># no shutdow n%LINK-5-CHANGED: In terface FastEthernet0/0, cha nged state to up %LINEPROTO-5-UPDOWN: Line protocol on In terface FastEt

29、hernet0/0, changed state to up Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface Serial2/0Router(c on fig-if>#%LINK-5-CHANGED: In terface Serial2/0, cha nged state to upno shutdow nRouter(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface Fa

30、stEther net0/0Router(co nfig-if>#ip address 192.168.5.1 255.255.255.0Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface Serial2/0Router(co nfig-if>#ip address 192.168.3.2 255.255.255.0Router(c on fig-if>#在Router 6中設(shè)置靜態(tài)路由Router>e nableRouter#c on figure term

31、i nalEn ter con figurati on comma nds, one per line. End with CNTL/Z.Router(co nfig>#ip route 192.168.32.0 255.255.255.0 192.168.3.1Router(co nfig>#ip route 192.168.33.0 255.255.255.0 192.168.3.1Router(co nfig>#ip route 192.168.1.0 255.255.255.0 192.168.3.1Router(co nfig>#ip route 192.16

32、8.4.0 255.255.255.0 192.168.3.1Router(c on fig>#路由器C座樓的配置：Router>e nableRouter#c on figure termi nalEn ter con figurati on comma nds, one per line. End with CNTL/Z.Router(c on fig># in terface FastEther net1/0Router(c on fig-if># no shutdow n %LINK-5-CHANGED: In terface FastEthernet1/0,

33、cha nged state to upRouter(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface Serial3/0Router(c on fig-if>#%LINK-5-CHANGED: In terface Serial3/0, cha nged state to upno shutdow n Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther ne

34、t1/0Router(co nfig-if>#ip address 192.168.1.1 255.255.255.0Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface Serial3/0Router(co nfig-if>#ip address 172.18.0.2 255.255.0.0Router(c on fig-if>#%LINEPROTO-5-UPDOWN: Line protocol on In terface FastEthernet1/0, cha

35、 nged state to upn o ip addressRouter(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther net0/0Router(c on fig-if># no shutdow n%LINK-5-CHANGED: In terface FastEthernet0/0, cha nged state to up Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig>

36、# in terface Serial3/0Router(c on fig-if>#%LINK-5-CHANGED: In terface Serial3/0, cha nged state to admi nistratively dow nshutdow n Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther net0/0Router(c on fig-if>#shutdow n%LINK-5-CHANGED: In terface FastEth

37、ernet0/0, cha nged state to admi nistratively dow n Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther net1/0Router(c on fig-if>#shutdow n%LINK-5-CHANGED: In terface FastEthernet1/0, cha nged state to admi nistratively dow n %LINEPROTO-5-UPDOWN: Line proto

38、col on In terface FastEthernet1/0, chan ged state to dow n Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther net5/0Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther net4/0Router(c on fig-if>#Router(c on fig-if>

39、#exitRouter(c on fig># in terface Serial3/0Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther net0/0Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther net1/0Router(c on fig-if># no shutdow n%LINK-5-CHANGED: In te

40、rface FastEthernet1/0, cha nged state to up %LINEPROTO-5-UPDOWN: Line protocol on In terface FastEthernet1/0, changed state to up Router(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface Serial3/0Router(c on fig-if>#%LINK-5-CHANGED: In terface Serial3/0, cha nged state to

41、 upno shutdow nRouter(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface FastEther net1/ORouter(c on fig-if>#Router(c on fig-if>#exitRouter(c on fig># in terface Serial3/0Router(co nfig-if>#ip address 172.18.0.2 255.255.0.0Router(c on fig-if>#在C座樓中設(shè)置靜態(tài)路由Router>e nableRouter#c on figure termi nalEn ter con figurati on comma nds, one per line. End with CNTL/Z.Router(co nfig>#ip route 192.168.32.0 255.255.255.0 172.18.0.1Router(co nfig>#ip rout