Ethernet 網路設備的介紹及應用 - 葉建良的家

文章推薦指數: 80 %
投票人數:10人

在Ethernet 網路中所使用的線材有四種, 所使用的連接方式不盡相同, 而其接頭也不一樣, 這四種線材分別是RG-11 Coaxial Cable 、 RG-58 Coaxial Cable ... Ethernetºô¸ô³]³Æªº¤¶²Ð¤ÎÀ³¥Î Ethernet(¤A¤Óºô¸ô)¬O¥Ø«eÀ³¥Î³Ì¼sªººô¸ô,­n§Î¦¨ºô¸ô¤@©w¦³¦UºØ ªº³]³Æ¨Ó¬[ºc§Î¦¨¾ã­Óºô¸ô,³o¨Ç³]³Æ¦³©Ò¨Ï¥Îªººô¸ô½u§÷¡Bºô¸ô¥d¡B ºô¸ô¶°½u¾¹¡Bºô¸ô¾ô±µ¾¹¡B¸ô¥Ñ¾¹µ¥µ¥,¦b³o½gµu¤å¤¤±N¦U­Óºô¸ô ³]³Æ§@¤¶²Ð¤Î»¡©ú¨ä¦p¦óÀ³¥Î¡C ºô¸ô½u§÷ ¦bEthernetºô¸ô¤¤©Ò¨Ï¥Îªº½u§÷¦³¥|ºØ,©Ò¨Ï¥Îªº³s±µ¤è¦¡¤£ºÉ¬Û¦P, ¦Ó¨ä±µÀY¤]¤£¤@¼Ë,³o¥|ºØ½u§÷¤À§O¬ORG-11CoaxialCable¡BRG-58Coaxial Cable¡BUnshieldTwistedPair(UTP)¡BFilber(¥úÅÖ),Ethernetªº½u§÷¨Ï¥Î¤£¬O ¤@¶}©l«K¦³³o¥|ºØ½u§÷,¦Ó¬O¦bEthernetªºµo®i¨Ï¥Î¤¤®Ú¾Ú»Ý¨D³°Äò ­q©wªº¼Ð·Ç,­º¥ý¬O¨Ï¥ÎRG-11ªº½u§÷,RG-11ªº½u§÷¸û²Ê,©Ò¥H¬I¤u ¸û¦]Ãø,¦Ó¥B¨ä¦¨¥»¸û°ª,³o­Ó³W®æºÙ¤§¬°10Base-5,¦]¬°¦¨¥»¤Ó°ª©Ò ¥H«K¥HRG-58ªº½u§÷¨Ó¥N´À,RG-58ªº½u§÷¸û²Ó¦Ó¥B«K©y,©Ò¥H¥HRG-58 ©Ò³sµ²ªººô¸ô¤]³QºÙCheapEthernet¤ÎThinEthernet,¦Ó¬Û¹ïªº¥HRG-11©Ò³s ±µªºEthernetºô¸ô³QºÙ¤§¬°ThinkEthernet,¨Ï¥ÎRG-58³s½uªº³W®æ­q©w¬° 10Base-2,¦ý¬O10Base-2ªº³s±µ±ÄBUSªº¤è¦¡,®e©ö¦]¬°³æÂIªº¬G»Ù ¦Ó¾É¦Ü¾ã­Óºô¸ôµLªk¹B§@,©Ò¥H³o®É­q©w¤F10Base-Tªº³W®æ,±ÄStar ªº³s±µªº¤è¦¡,¨Ï¥ÎUnshieldTwistPairªº½u§÷,¥H10Base-Tªº¤è¦¡³s½u ÁٻݭnÃB¥~ªº³]³Æ,¨º´N¬OHub,³o¦b«á­±·|»¡©ú,±µµÛ¥úÅÖªº¼sªxªº ¨Ï¥Î,¦]¬°¥úÅÖªº¤£¨ü¥ÌÂZ,¥B¶Ç¿é¶ZÂ÷«D±`¾A¥Îªº¤j½d³òªº¤u¼t, ³o®ÉEthernet¤]­q©w¤F¨Ï¥Î¥úÅÖªº½u§÷¨Ó³s½u,­q©wªº³W®æ¬°10Base-FL, ÁöµM¬O¨Ï¥Î¥úÅÖ§@½u§÷,¦ýÁÙ¬OEthernet,©Ò¥H¨ä¶Ç¿éªº³t«×ÁÙ¬O10Mbps, ³oÂI­n©MFDDI¤À²M·¡,¤£¬O¨Ï¥Î¥úÅÖ¬Ò¬O¨Ï¥Î100Mbpsªº³t«×,¥H¤W¥| ºØ½u§÷ªº³s±µ¤è¦¡¤£¦P,©Ò¥Îªº±µÀY¤]¤£¦P,¦Ó¥B³s±µ¶ZÂ÷¤]¤£¦P,¤Uªí ¤¤¦C¤F¥|ºØ³W®æªº¤ñ¸û ³W®æ¨Ï¥Î½u§÷¨Ï¥Î±µÀY°Ï¬q³Ìªø¶ZÂ÷ 10Base-5RG-11CoaxialBNC500¤½¤Ø 10Base-2RG-58CoaxialBNC185¤½¤Ø 10Base-TUTPRJ-45100¤½¤Ø 10Base-FL¥úÅÖST±µÀY2-4¤½¨½ ÁöµM¦³³o¥|ºØ½u§÷ªº¨Ï¥Î,¦ýÁÙ¬OEthernet,¦b¤@­Óºô¸ô¤¤³o¥|ºØ½u§÷ ¥i¥H®Ú¾Ú»Ý¨D²V¦X¨Ï¥Î,¹Ï¤@¨ì¹Ï¥|»¡©ú¥|ºØ³s±µ¤è¦¡,¹Ï¤­¬O²V¦X ¨Ï¥Îªº½d¨Ò ¹Ï¤@10Base-5¤§³s±µ¤è¦¡ ¹Ï¤G10Base-2¤§³s±µ¤è¦¡ ¹Ï¤T10Base-T¤§³s±µ¤è¦¡ ¹Ï¥|10Base-FL¤§³s±µ¤è¦¡ ¹Ï¤­²V¦X¨Ï¥Î¤§³s±µ¤è¦¡ ºô¸ô¥d ¤@³¡IBMCompatiblePC­n³s±µEthernetºô¸ô¤@©w­n¦³¤@¤ùEthernetºô¸ô¥d, ¬°¤°»ò­n»¡¬OEthernetºô¸ô¥d?¦]¬°­n³s±µTokenRingºô¸ô»Ý­nTokenRing ºô¸ô¥d,¦Ó­n³s±µARCNETºô¸ô»Ý­nARCNETºô¸ô¥d,©Ò¥H­n³s±µ¤£¦Pºô¸ô ©Ò¨Ï¥Îªººô¸ô¥d¬O¤£¦Pªº,¦b³o½gµu¤å¤¤©Ò­n»¡©úªº¬OEthernet,©Ò¥H ¥H¤U´£¤Îºô¸ô¥d¬Ò¬O«üEthernetºô¸ô¥d¡C Ethernet·|¼s¬°¤j®a±µ¨ü¨Ï¥Îºô¸ô¥dªº»ù®æ¦û¤F­«­nªº¦]¯À,¦]¬°¦b¤@­Ó ºô¸ô¤¤ºô¸ô¥d¨Ï¥Îªº¶q³Ì¦h¡Cºô¸ô¥d³Ì­«­nªº¥\¯à«K¬O±N¸ê®Æ°e¥X¦Ü ºô¸ô,¦P®É¤]±qºô¸ô¤W±µ¨ü¸ê®Æ,¨C¤ùºô¸ô¥d¤¤¬Ò¦s¦³¤@­ÓEthernetID, ¥þ²yºô¸ô¥dªºEthernetID¬Ò»Ý°ß¤@,¦]¬°ºô¸ô¦¬¨úºô¸ô¤WÄݩ󥻨­ªº ¸ê®Æ¬Ò¬O¥ÑEthernet¨Ó§PÂ_,³o­n¹ïEthernetºô¸ô¶Ç°e«Ê¥]ªº·§©À§@¤@µf »¡©ú,Ethernet¶Ç°e¸ê®Æ¬O¨Ï¥Î¼s¼½(Broadcast)ªº¤è¦¡,¤]´N¬O»¡«Ê¥]¥Ñ ¤@¥xPC°e¥X,ºô¸ô¤W¦P¤@­Ó°Ï¬qªººô¸ô¥d¬Ò¥i¦¬¨ì³o­Ó«Ê¥],¦Ó¥B ºô¸ô¤W¨C­Óºô¸ô¥d¬Ò·|±N«Ê¥]¦¬¶i¨Ó,¨ú¨ä«Ê¥]¤¤ªºDestinationEthernetID ©Mºô¸ô¥d¥»¨­ªºEthernetID§@¤ñ¸û,­Y¤£¦P«K©ß±ó,­Y¬Û¦P«h¥æ¥Ñ¤W¼h ³B²z,©Ò¥Hºô¸ô¤W­Y¦³¤G­Óºô¸ô¥dEthernetID¬Û¦P«h¶Ç°e¸ê®Æ«K·|¦³ °ÝÃD,EthernetIDªº®æ¦¡¬O¥Ñ6Byte©Ò²Õ¦¨,¦p003412123456,«e¤T­ÓByte( 003412)¬O¤½¥q½X,«á¤T½X(123456)¬O§Ç¸¹,¨C­Óºô¸ô¥d»s³y°Ó¬Ò»Ý¥Ó½Ð«e ¤T½X¤½¥q½X,¦Ó«á¤T½X§Ç¸¹«h¥Ñºô¸ô¥d»s³y°Ó¦Û¦æ¹B¥Î,³o¬OEthernetID, ³o©MIPAddress¨S¦³Ãö«Y,¤£­n²V²c¡C ¤@¤ùºô¸ô¥i¥H¤À¬°¥|­Ó³¡¥÷¨Ó¬Ý,³o¥|³¡¥÷¬O1.©Mºô¸ô½u§÷³s±µªº³¡¥÷ ¡B2.©MPC³s±µ³¡¥÷¡B3.³]©w³¡¥÷¡B4.ºô¸ô¥dMemory³¡¥÷,¥H¤U¹ï³o¥|³¡ ¥÷©Ò©µ¦ù¥X¨Óªº¦WÃã¤Î¥\¯à§@¤¶²Ð ©Mºô¸ô½u§÷³s±µ³¡¥÷ ©Mºô¸ô¥d³s±µ³¡¥÷,¦]¬°Ethernet½u§÷¦³¥|ºØ,¦Ó¥B¨Ï¥Îªº±µÀY¤]¤£¤@ ¼Ë,¦b¤@¤ùºô¸ô¥d¤¤©Ò´£¨Ñªº³s±µ¤è¦¡¤£¦P´N¦³©Ò¿×ªº2in1¡B3in1 µ¥ºÙ©I,3in1ªººô¸ô¥d¬O«ü¤@¤ùºô¸ô¥d¤¤¦³¤TºØ±µÀYBNC¡BRJ-45¤ÎAUI, 2in1¬O«ü¤@¤ùºô¸ô¥d¤¤¦³¤G­Ó±µÀYºÙ¤§,³o®É¤£§K¦³¤H­n°Ý¥i¤£¥i¥H ¦P®É³s±µ¤T­Ó±µÀY,µª®×¬O¥i¥H,¦ý¬O¥u¦³¤@­Ó±µÀY·|¦³°Ê§@,¦]¬°ºô ¸ô¥d¥u´£¨Ñ¤@­ÓEthernetPort,©Ò¥H¤]¥u¦³¤@­Ó±µÀY¥i¥H¨Ï¥Î,¤@¤ùºô¸ô ¥d´£¨Ñ¦h­Ó±µÀY¥u¬O¤è«K¨Ï¥ÎªÌ¦b¤£¦Pªººô¸ô³s±µ¤è¦¡¤U¬Ò¥i¨Ï¥Î, ¦ý¬O¤£¯à¦P®É¨Ï¥Î,¦ý­Y¬O¦P®É±µ¤W¤F¦h­Ó±µÀY,¨º¨º¤@­Ó±µÀY¬O¦³°Ê §@©O?³o¦U®aºô¸ô¥dªº§@ªk¤£¦P,¦³ªº¬O¨Ï¥Î¨º¤@­Ó±µÀY­n¥Ñ¨Ï¥ÎªÌ¦Û¦æ ¿ï©w,¥ÑJumper©Î³nÅé,¦³ªº¬Oºô¸ô¥d¦Û¦æ°»´ú,³o®É¬O¦³Àu¥ý¶¶§Çªº, AUIµM«á¬OBNC³Ì«á¬ORJ-45,³o¬O¤@¯ëªº­ì«h,¦ýÁÙ¬O­n¬Ýºô¸ô¥d¼t°Ó ªº³]­p¤è¦¡¡C ©MPCªº³s±µ³¡¥÷ ©MPCªº³s±µ³¡¥÷¥D­n¬OBUSªº®t²§,ºô¸ô¥d¬O¤@¤ùPCªº¤¶­±¥d, PCªºBUS¤¶­±¨ì¥Ø«e¦³ISA¡BEISA¡BVesa¡BPCIµ¥,­n±Nºô¸ô¥d¨Ï¥Î ©ó¦óºØBUS¤¶­±¤W,´N­n±ÄÁʾA¥Îªººô¸ô¥d,´N³t«×¦Ó¨¥,ISA³ÌºC, PCI³Ì§Ö,³o³£©MPC¥»¨­BUSªº³t«×¦³Ãö,ºô¸ô¥d¥u¬Oªï¦X¥D¾÷ªO ªºBUS¤¶­±¦Ó¤w¡C ³]©w³¡¥÷ ³]©w³¡¥÷¬O«ü¹ïºô¸ô³]©w¨äInterrupt¤ÎI/OAddressµ¥ªº¤è¦¡,¦­´Á ¬Ò¬O¨Ï¥ÎJumper¨Ó³]©wºô¸ô¥dªº³]©w,ºÙ¤§¬°JumperSetup,¨Ï¥ÎJumper Setup­n§ó§ï¨ä³]©w®É»Ý­n¥´¶}¾÷¾¹¨Ó§@³]©w,©Ò¥H´N¦³¼t°Ó±À¥X Jumperlessªººô¸ô¥d,©Ò¿×Jumperlessªººô¸ô¥d¬O«üºô¸ô¥dªº³]©w¤£»Ý ¨Ï¥ÎJumper,¦Ó¬O¨Ï¥Î³]©wªº³nÅ骽±µ¦bPC¤W°õ¦æ«K¥i§ó§ï¨ä ³]©w,¤£¦A»Ý­n¥´¶}¾÷¾¹¨Ó¨Ï¥ÎJumper¨Ó³]©w,¦ý¬O­nª`·N³]©wªº³n Å饲¶·«O¯d,§_«h¥¼¨Ó­n§ó§ïºô¸ô¥d³]©w®É´N¨SËs¤F¡CÀHµÛMicrosoft ´£¥XPlugandPlayªº³W®æ,¦ÓMicrosoftWindows95¤]¤ä´©PlugandPlay,©Ò ¥H¥¼¨Óºô¸ô¥d¬Æ¦Ü©ó©Ò¦³ªºPC¤¶­±¥d¬Ò¬OPlugandPlayªº¤Ñ¤U, PlugandPlay²ºÙPNP,¬OŲ©ó¨Ï¥ÎªÌ¦bPC¤W¨Ï¥Î¦UºØ¤£¦Pªº¤¶­±¥d ®É¬Ò­n½Õ¶}¦U­Ó¤¶­±¥dªºInterrupt¡BI/OAddress¡BDMAµ¥,­Y¦³¬Û½Ä,¤¶ ­±¥d«K¤£¯à¨Ï¥Î,©Ò¥HMicrosoft´£¥XPNP,¤£ºÞ¨Ï¥Î´X¤ùPNP¤¶­±¥d, ¨ä³]©w¥Ñ¨t²Î¨Ó½Õ¾ã,Åý¨Ï¥ÎªÌ¤£»Ý¦A¬°¤¶­±¥dªº³]©w¨Ó¶Ë¸£µ¬¤F, ¥Ñ©óWindows95ªº±À¥X,PNPªººô¸ô¥d«Ü§Ö·|¦¨¬°¥D¬yªº²£«~¡C ºô¸ô¥dMemory³¡¥÷ ºô¸ô¥d±qºô¸ô¤W¨ú±o¸ê®Æ©Î¬O­n°e¥X¸ê®Æ®É¬Ò±N¸ê®Æ©ñ©óMemory¤¤, ³o­ÓMemoryªºÀ³¥Îªº¤è¦¡¦³¤TºØProgrammingI/o¡BShareMemory¡BBusMaster, ProgrammingI/O³t«×¸ûºC,BusMaster¨Ï¥ÎDMA©Ò¥H³t«×¤W³Ì§Ö,¤@¯ëNE2000 ¬Û®eªººô¸ô¥d¬O¨Ï¥ÎProgrammingI/Oªº¤è¦¡,¥u­n³]©wInterrupt¤ÎI/O Address§Y¥i,¨Ï¥ÎShareMemoryªººô¸ô¥d¤£¦h,¦pWDªººô¸ô¥d§Y¬O,°£¤F ³]©wInterrupt¤ÎI/OAddress¥~,Áٻݭn³]©wMemoryAddress,¦Ó¥B¦bConfig.sys ¤¤¦³¨Ï¥ÎEmm386.exe®É­n±Nºô¸ô¥d©Ò¨Ï¥ÎªºMemory°Ï¬q«O¯d,§_«hºô¸ô ¥dµLªk¥¿±`¨Ï¥Î,BusMaster¦pNE2100,³]©w°£¤FInterrupt¤ÎI/OAddress¥~, Áٻݭn³]©w©Ò¨Ï¥ÎªºDMA¡C °£¤F¤@¯ëºô¸ô¤¶­±¥d¥~,¬°¤F¨ÏNoteBookµ§°O«¬¹q¸£¤]¯à¨Ï¥Îºô¸ô«K¦³ PocketLanAdapter¤ÎPCMCIAªººô¸ô¥d,µ§°O«¬¹q¸£µLªk´¡¤¶­±¥d,©Ò¥H¦­´Á¨Ï¥Î PocketLanAdapter¤@ºÝ´¡©óµ§°O«¬¹q¸£ªºPrinterPort,¤@ºÝ³s±µºô¸ô,±µµÛ PCMCIAªº¼Ð·Ç¤Æ,¥Ø«e¦bµ§°O«¬¹q¸£ªººô¸ô¥\¯à¬Ò¬O¥HPCMCIA¨Ó³s½u¡C ºô¸ô¥dªº¨Ï¥Î¬Û·í²³æ,´¡©óPCªºSlot¤¤,³]©w¨äInterrupt¤ÎI/O Addresssµ¥«K¥i¨Ï¥Î¤F,·íµMºô¸ô¥dªº³]©w©M©Ò¨Ï¥Îªº³nÅ骺³]©w­n¬Û¦P, §_«hµLªk¥¿±`°Ê§@¡C °T¸¹¼W¯q¾¹ °T¸¹¼W¯q¾¹¤]´N¬ORepeater,Repeater¬O¤@­Ó²³æªººô¸ô³]³Æ,¤£»Ý¥ô¦ó ªº³]©w«K¥i¨Ï¥Î,¨ä¥D­nªº¥\¯à¬O©µªø³s½uªºªø«×,10Base-2¤@­Ó°Ï¬q(¤G ­ÓTerminator¶¡)ªº¶ZÂ÷³Ìªø¤£¶W¹L185¤½¤Ø,¦ý¦b¹ê»Ú¹B¥Î¤¤185¤½¤Ø ¬O¤£°÷ªº,©Ò¥H«K»Ý­nRepeater,Repeater¬O¥i©µªø¨ä³s½u¶ZÂ÷,¦ý¬O¬O ¦³­­¨îªº,¨Ï¥ÎRepeater®É¤£¥i¶W¹L4­Ó,¤]´N5­Ó°Ï¬q,©Ò¥H¦b¤@¨Ç ºô¸ô¸ê®Æ¤¤¥i¥H¬Ý¨ì³Ìªø¶ZÂ÷,¥H10Base-2¦Ó¨¥,¤@­Ó°Ï¬q185¤½¤Ø,¦ý ¥[¤F4­ÓRepeater«á,¨äÁ`ªø«×¬O185x5=925¤½¤Ø,¬Û¦Pªº10Base-5ªº³Ì ªø¶ZÂ÷¬O2500¤½¤Ø¡CRepeater³q±`¦b10Base-5©Î10Base-2¤¤ºÙ¤§,¦b10Base-T ªºÀô¹Ò¤¤ºô¸ô¶°½u¾¹ªº¥\¯à¬O©MRepeater¤@¼Ëªº,©Ò¥HHub¤]­n¿í´`4­Ó Repeaterªº­­¨î,©Ò¥H¦b10Base-Tªº³Ìªø¶ZÂ÷¬O500¤½¤Ø¡C Repeater¬O¤@­Ó°T¸¹©ñ¤j¾¹,¹ïºô¸ô¤W©Ò¶Ç¿éªº¸ê®Æ¤@ÂI³£¤£Ãö¤ß,Repeater ¥uºÞºô¸ôªº¹q®ð³¡¥÷,¥u­n½u¤W¶Ç¿éªº°T¸¹¬Ò·|©ñ¤j°T¸¹«á©¹¥t¤@­Ó °Ï¬q°e¥X¡C ¹Ï¤»Repeaterªº³s±µ ºô¸ô¶°½u¾¹ ºô¸ô¶°½u¾¹¤]´N¬OHub,Hub¥D­n¨Ï¥Î©ó10Base-Tªººô¸ô,10Base-Tºô¸ô ¬O¨Ï¥ÎStarªº³s±µ¤è¦¡,¦ÓHub´N¬O³o­ÓStarªº¤¤¤ß,©Ò¨Ï¥Îªº±µÀY ¬ORJ-45,¤]´N¬O8PinªºPhoneJack,¨ä³s±µ¤è¦¡¦p¹Ï¤C ¹Ï¤C ©Ò¨Ï¥Îªº¬OUTPCable,UTP(UshieldTwistedPair)µL¾B½ªÂùµ±½u,¨ä³W®æ¦³¤À CAT1¨ìCAT5,¥D­n¬O¨Ì½u§÷ªº¯S©Ê¨Ó¤À,¤]´N¬O©Ò¯à¶Ç¿éªº³t«×,¨ä ¯S©Ê¦p¤Uªí©Ò¥Ü EIA³W®æ¯S©Ê CAT1¾A¥Î©ó¶Ç¿éÁn­µ CAT2¾A¥Î©ó¶Ç¿é4Mbpsªº¸ê®Æ CAT3¾A¥Î©ó¶Ç¿é10Mbpsªº¸ê®Æ,¶ZÂ÷µu¥i¶Ç¿é16Mbps¸ê®Æ CAT4¾A¥Î©ó¶Ç¿é16Mbps¸ê®Æ CAT5¾A¥Î©ó¶Ç¿é100Mbps¸ê®Æ ¥Ø«e©Ò¨Ï¥Îªº½u§÷³£¬O±Ä¥ÎCAT5,¬°¤F¥¼¨Óª@¯Å¨ì100Mbps®É¤£»Ý­«·s§G ½u¡C ¦b©Ò¨Ï¥Îªº8pinUTP½u¤¤,Ethernet¥u¨Ï¥Î¤F¤G¹ï4Pin,¨äPinAssignment¦p ¤Uªí PINNumberSignalRJ-45´¡®y¹Ï¥Ü 1TD+ 2TD- 3RD+ 4---- 5---- 6RD- 7---- 8---- Hub°£¤F´£¨Ñ¦h­ÓUTPPort¨Ñ¤u§@¯¸©ÎPC³s±µ¥~,ÁÙ´£¨Ñ¤@­ÓAUI©Î BNCPort¨Ñ¤£¦Pªººô¸ô³s±µ¤è¦¡¡C Hub¬O¥i¥H¦ê±µªº,¦ê±µ¬O«ü±NHubªº¤@­ÓUTPPort³s±µ¨ì¥t¤@­Ó HubªºUTPPortºÙ¤§,¦ê±µ¬O¦³¨ä­­¨î,Hubªº¥\¯àÃþ¦ü©ó°T¸¹¼W¯q ¾¹,¦ê±µªºHub¼Æ¤£¥i¶W¹L4­Ó,¦Ó¥B¦ê±µªºUTP½u©M¥­±`ªº±µ¨ì PCªºUTP½u¤£¦P,»Ý­nCrossover,©MRS-232DTE±µDCE®É2-23-3,¦ý ¬ODTE±µDTE®É2-33-2ªº­ì²z¬O¤@¼Ëªº,CrossoverUTP½uªº±µ½u¦p¤U ¥ªºÝPinNumberSingal½uªøSingal¥kºÝPinNumber 1TD+-----------------------RD+3 2TD------------------------RD-6 3RD+-----------------------TD+1 6RD------------------------TD-2 ¨â­ÓHub¦ê±µ¤@©w­n¨Ï¥ÎCrossoverªºUTPCable¤~¯à³s½u,¥Ø«e¦U®a ªºHub¬Ò¦³«O¯d¤@­ÓUTPPort§@¦ê±µ®É¨Ï¥Î,¦Ó¥B¦³¶}Ãö¤Á´«¨Ó³]©w ³o­ÓUTPPort¬O¤@¯ëªºUTPPort©Î¬O¦ê±µªºPort,·í³]©w¦¨¦ê±µPort ®É¨ä¤º³¡´N¤w§@Crossoverªº°Ê§@,©Ò¥H¥i¨Ï¥Î¤@¯ëªºUTPCable¨Ó¦ê±µ, ¦ê±µªº¨â¥xHub¤¤¥u­n¤@Ãä³]©w¦ê±µPort§Y¥i,¨âÃä¬Ò³]¦¨¦ê±µ Portªº¸Ü¨º¤]µLªk³s½u,­n¯S§Oª`·N¡C¥«Ô·¤WªºHubÁÙ¦³©Ò¿×ªº Stackable(¥i°ïÅ|),Stackable¬O«üHub¨Ï¥ÎCable±N¦h­ÓHub³s±µ°_ ¨Ó,©Ò¨Ï¥Îªº½u§÷©M±µÀY¦U®a¤£¦P,¤£¬O¨Ï¥ÎUTPPort¨Ó³s±µ,¨º³o ¼Ëªº¤è¦¡©M¦ê±µ¦³¤°»ò¤£¦P?¦ê±µ°_¨Óªº¨C¤@­ÓHub¬Ò¬O¿W¥ßªºHub, ©Ò¥H­n¦Ò¼{¦ê±µ¤£¥i¶W¹L4­Óªº­­¨î,¦ý¬O¦h­ÓHubStack°_¨Ó«á ¬O¦¨¬°¤@­ÓHub,³o¬OStackableHub©MHub¦ê±µ³Ì¤jªº®t²§ÂI¡C Hub¦bºô¸ô³s±µ¨Ï¥Î¤Wºâ¬O²³æªº,¤ñ¦w¸Ëºô¸ô¥dÁÙ®e©ö,¥u­n ±µ¤W¹q·½¤ÎUTPCable³s¨ìPC©Î¥D¾÷¤W§Y¥i¨Ï¥Î,°÷¤è«K¤F§a! ­Y¬O»Ý­n¹ïHub§@ºôºÞªº¸Ü¨º´N­nÁʶR¨ã¦³SNMPAgentªºHub,SNMP ¬OSimpleNetworkManagementProtocolªºÁY¼g,¥D­n§@ºôºÞ¥Î,¥i¦b¤@¥x ºôºÞ¤u§@¯¸¤¤°õ¦æºôºÞµ{¦¡,«K¥i¦bºô¸ô¤u§@¯¸¤W¬d¸ß»·ºÝ¾ã­Ó Hub©Î¬Y¤@­ÓUTPPort ªº¸ê®Æ¬y¶q,¤]¥i¶}±Ò©ÎÃö³¬¬Y¤@­ÓUTPPort,§ó¥i¦bºôºÞ¤u§@¯¸¤¤¬Ý ¨ì¾ã­ÓHubªº­±ªO¡B¿O¸¹µ¥,¦b¦¹¤£¸Ô­zSNMPªº°Ê§@­ì²z,SNMPHub ·|¦³¤@­ÓRS-232Port¨Ó§@³]©w¥Î,¥i¨Ï¥ÎTelix©Î¨ä¥L³q°T³nÅé³s ±µ¦ÜSNMPHubªºRS-232Port¤W,¦bSNMPHub³Ì¥D­n³]©w¤@­ÓIPAddress, ©Ò¥HÁÙºâ¬O«D±`®e©ö¡C ºô¸ô¾ô±µ¾¹ ºô¸ô¾ô±µ¾¹´N¬O¤@¯ë©Ò»¡ªºBridge,Bridge¤]¬O¤@­ÓÀH´¡ÀH¥Îªº²£«~, ¤£»Ý¸g¹L¥ô¦ó³]©w§Y¥i¨Ï¥Î,Bridge¥D­nªº¥\¯à¬O°Ï¹jºô¸ô¥Î,¦b Bridge¤¤¦³¤@­ÓBridgeTable,³o­ÓTable°O¿ý¤Fºô¸ô¨âÃäPC©Î¥D¾÷ ªºEthernetID,Bridgeªº°Ê§@¬yµ{¥H¹Ï¤K¨Ó§@»¡©ú ¹Ï¤K ·íPC1°e¸ê®Æ¨ìPC2®É,¦]¬°Ethernet¬O¨Ï¥ÎBroadcastªº¤è¦¡¨Ó¶Ç¿é, ©Ò¥HBridge¤]¥i¥H¦¬¨ì«Ê¥],Bridge¦¬¨ì«Ê¥]«á·|±N«Ê¥]¤¤Ethernet Header¤¤ªºDestinationEthernetID¨ú¥X888888222222©MBridgeTableªº¸ê ®Æ§@¤ñ¹ï,¹Ï¤KªºBridgeTable¦p¤Uªí©Ò¥Ü §Ç¸¹EthernetID¤¶­±AgingTime 18888881111111180 28888882222221180 38888883333332180 µ²ªGEthernetID888888222222¬O¦b¤¶­±1¤W,©M«Ê¥]¶i¤JBridge¬O¦P ¤@­Ó¤¶­±,¤£»ÝBridge¶Ç°e,©Ò¥H±N«Ê¥]©ß±ó,­Y¬OPC1°e¸ê®Æ¨ì PC3,Bridge¦¬¨ì«Ê¥]¨ú¥XEthernetHeader¤¤ªºDestinationEthernetID, ©MBridgeTable¤ñ¹ïªºµ²ªG¬O¦b²Ä¤G­Ó¤¶­±,©M¨Ó·½ªº¤¶­±¤£¦P, ¦¹®ÉBridge±N«Ê¥]¥Ñ¤¶­±2°e¥X,³o«K¬OBridgeªº°Ê§@­ì²z¡C ¸g¥Ñ¥H¤Wªº»¡©úÀ³¸Ó¤F¸ÑBridge¦p¦ó¨Ó°Ï¹jºô¸ô,¦ÓBridgeTable ¬OBridge¦Û¦æ¾Ç²ß,¤£»Ý¤H¤u«Ø¥ß¡C¥t¥~¦bBridge¤¤ÁÙ¦³´£¨Ñ IEEE802.1dSpanningTreeªº¥\¯à,©Ò¿×SpanningTree¬O«üBridge¤£¯à¹³ Router³s±µ¦¨¤@­ÓLoop,¦p¹Ï¤E ¹Ï¤EBridge¶¡·|¨ó½Õ±N¬Y¨Ç³s½u°±¤îForwarding,«K¦PÂ_½u¤@¼Ë ¦bLoopªº±¡ªp¤U·|¥X²{¸ê®Æ¤@ª½¶Ç¿é,¦Ó¥Øªº¦aªºPC©Î¥D¾÷ ¤@ª½¦¬¨ì¦P¼Ëªº«Ê¥],SpanningTreeªº¥\¯à«K¬O¦bBridge³s±µ¦¨ ¤@­ÓLoop®É,Bridge¶¡·|¨ó½Õ¥X­n±N¨º¤@­Ó¸ô®|Â_½u,³o­ÓÂ_½u ¬O«üBridge¤£±N«Ê¥]Forward,¨Ã¤£¬O¹ê»Ú½u¸ôÂ_½u,Spanningªº ¥\¯à¸û½ÆÂø,¦b¦¹¤£¸Ô­z¨ä°Ê§@,¥u­n¤F¸ÑSpnningTree¬O¸Ñ¨M Bridge³s±µ¦¨Loopªº°ÝÃD§Y¥i,¦³¾÷·|¦A±M½g»¡©ú¾ã­ÓSpanning Treeªº°Ê§@­ì²z¡C ¸ô¥Ñ¾¹ ¥H¤W©Ò¤¶²Ðªººô¸ô³]³Æ¬Ò©MProtocol¨S¦³Ãö«Y,¦ý¬ORouter©MProtocol¤§ ¶¡¬O®§®§¬ÛÃöªº,Router¬O¥ÑInternet¤¤µo®i¦Ó¨Óªººô¸ô³]³Æ,¦ÓInternet ¬O­Ó¥þ²yºô¸ô,Router¦b¨ä¤¤§êºtªº¨¤¦â¬O±Nºô¸ô¤Wªº«Ê¥]°e¨ì¥¿½Tªº ¦ì§}©Ò¦b,¬°¤F¹F¨ì¦¹¤@¥\¯à¥ú¨Ï¥Îºô¸ô¥d¤WªºEthernetID¬OµLªk¹F¨ì, ¥²¶·¥ÑProtocol¤¤ªºRouting¸ê®Æ¨Ó§¹¦¨,ProtocolTCPIP¤¤ªºIP«K¬O¨Ï¥Î ¨Ó§@Routing¥Îªº,¦b¦¹±N¤£¸Ô²Óªº»¡©ú¨ä¤u§@­ì²z,¥u·|»¡©úRouterªº ÀuÂI¤Î¨Ï¥Î¡C Router¦³¦h­Óªººô¸ô¤¶­±,¤£ºÞLAN©ÎWAN,3LAN3WANªí¥Ü³o­ÓRouter¦³ 3­ÓLAN¤Î3­ÓWANªº¤¶­±,Á`¦@¬O6­Ó¤¶­±,¸ê®Æ«Ê¥]¦bRouterªº ¤¶­±¤¤·|¿ï¾Ü³Ì¨Îªº¸ô®|¨Ó¶Ç°e¡CRouter©MProtocol¶¡ªºÃö«Y«D¤ñ´M±`, ¦ý¬O¨Ã¤£¬O©Ò¦³ªºProtocol¬Ò¥i§@Routingªº°Ê§@,¦pNetBueiµLªk§@Routing, ¤@¯ë¦b¨Ï¥Î¤WIP¤ÎIPXªºRouting¬O³Ì±`¥Îªº,©Ò¥H¤£ºÞ¨º¤@®a¼t°Óªº Router¬Ò·|¤ä´©IP¤ÎIPXªºRouting¥\¯à,¥t¥~¦bRouterªº³W®æ¤WÁÙ·| ¬Ý¨ìRoutingProtocolªº¦r²´,©Ò¿×RoutingProtocol¬O«üRouter©MRouter¤§ ¶¡©Ò¨Ï¥ÎªºProtocol,IP¡BIPX¬O¯à§@RoutingªºProtocol,¨âªÌ¤§¶¡­n¤À ²M·¡,RoutingProtocol¦³RIP¡BOSPF¡BBGPµ¥µ¥ªºProtocol,³o¨ÇªºRouting Protocol¥D­nªº¥\¯à¬O­nÂǵÛRouter¤§¶¡ªº¹ï½Í¨Ó¾Ç²ß©¼¦¹¶¡ªºRouting Table,¨ÏRoutingTable¯à°ÊºA¦a¦Û¦æ­×§ï,¤£»Ý¤H¬°ªº­×§ï,³o«K¬ORouting Protocolªº¥\¯à¡C Routerªº¨Ï¥Î­º¥ý­n»¡©úªº¬O¨ä³s±µ¤è¦¡,³q±`¬O¦b¦³WANLinkªº±¡ªp¨Ï ¥Î,¦ý¤£¬O¤@©w,­Y¤½¥qºô¸ô«Ü¤j¦Ó¥B¥D¾÷¤À´²¤]¥i¨Ï¥ÎRouter¨Ó°Ï¹j ºô¸ô,¹Ï¤Q¬O¦³WANLinkªº³s±µ½d¨Ò ¹Ï¤QRouterªº³s±µ Router¬O¤@­Ó«D±`½ÆÂøªº²£«~,¨ä¤¤¤ä´©ªº¥\¯à«D±`¦h,¦ý¬O¤@¯ë¨Ï¥Î ªº¥\¯à¤£ºâ¦h,´N¦p¦P¥Ø«eªº¿ý¼v¾÷¦³³\¦hªº¥\¯à,¦ý¬O¤@¯ë¥u¨Ï¥Î©ñ ¼v¡B«e¶i¡B°h±aµ¥¥\¯à¦Ó¤w,­Y¬O­n³]©w¤WInternetªº¸Ü¨º§ó²³æ,¥u ­n¤T­Ó«ü¥O§Y,¤@¬O¹ïLAN¤¶­±³]©wIPAddress,¤G¬O¹ïWANªº¤¶­±³]©w IPAddress,¤T¬O³]©wDefaultRoute§Y¥i¨Ï¥Î,©Ò¥HRouter¦b¨Ï¥Î¤W¨Ã¨S¦³ ·Q¹³¤¤ªº¦]Ãø,­n¼ô±x¾ã­ÓRoutingªº°Ê§@½Ð°Ñ¦Ò "Internetªººô¸ô¬[ºc"³o½gµu¤å¡C Transceiver Transceiver¬O¤@­Ó¤pªF¦è,ÁöµM¤p¦ý¬O¦³®É¤Ö¥¦«o«Ü³Â·Ð,Transceiver¥D­n ªº¥\¯à¬O§@10Base-5¡B10Base-2¡B10Base-T¡B10Base-FL¶¡¤¶­±ªºÂà´«,­Y¦³¤@­Ó Hub´£¨ÑUTPPort¥~ÁÙ´£¨Ñ¤@­ÓAUIPort,¦ý¬O©Ò­n±µªºPC¥u¦³BNCPort, ³o®É´N»Ý­nAUIÂàBNCªºTransceiver¨ÓÂà´«,¨ÏPC¤]¯à¤Wºô¸ô,¤@¯ë¥« ­±¤WªºTransceiverªººØÃþ¦³AUIÂàBNC¡BAUIÂàUTP¡BBNCÂàUTP¡BAUIÂà ST±µÀYµ¥,¹Ï¤Q¤@¬O³o¨ÇTransceiverªº¹Ï¥Ü ¹Ï¤Q¤@Transceiver ¹Ï¤Q¤@¤¤BNC©MUTPÂà´«ªºTransceiver»Ý­nÃB¥~¬°¹q·½,¦ý¬O¨ä¥Lªº¤£¥Î, ³o¬O¦³­ì¦]ªº,¨ä¥L¤£¥Î¹q·½ªºTransceiver¬Ò¬O¦³¤@­ÓAUIªº¤¶­±,Transceiver ªºAUI±µÀY³s±µ¦Ü³]³ÆHub©ÎRouterªºAUIPort®É³]³ÆªºAUIPort·|´£¨Ñ ¹q·½ÅýTransceiver¨Ï¥Î,©Ò¥H¤£¥ÎÃB¥~ªº¹q·½,¦ý¬OBNCÂà´«UTPªºTransceiver µLªk±qBNCPort©ÎUTPPort³B¨ú±o¹q·½,©Ò¥H¥²¶·ÃB¥~¹q·½Transceiver¤~¯à °Ê§@¡C LastestUpdated:1996¦~02¤ë06¤é ­Y¦³¸Ü§i¶D§Ú,¯d¤U±zªº®¨®¨¸Ü, ¦P®ÉÅwªï¨ì¸­«Ø¨}ªº®a§¤§¤



請為這篇文章評分?