跨越40多年的“以太”風云,了解一下?

快3开奖结果查询YITAIWANG(Ethernet)SHIMUQIANSHIJIESHANGYINGYONGZUIGUANGFANDEJUYUWANGJISHU。ZIQIMIANSHI,YIZHIBUFAYOUCHUANGXINZHEWEIZHEXIANGJISHUJINSHANGTIANHUA。JINNIANLAI,SUIZHUWANGLUOBIANGE,GELUQUNXIONGFENFENYONGRUGEIYIXIANGBOLANBUJINGDEYITAIWANGSHICHANGXIANQILEJULANG。YINGTEERSHOUGOUCHUCHUANGGONGSIBarefoot Networks,ZAIDUFALIYITAIWANGTONGXINXINPIANLINGYU;KEJIJUTOUBOTONGGONGSIFABU400G Tomahawk 4JIAOHUANJIXINPIANCHENGWEIYITAIWANGSHICHANGDEZHONGYAOLICHENGBEI。

ZUOWEIJINRUBUHUOZHINIANDEDICENGWANGLUOJISHU,RANGQICHIXUCHUANGXINDEBEIHOUTUILISHISHENME?TAYOUYUANYUHECHU? “YITAI”YOUSHISHENMEGUI?

DAIZHUZHEXIEYIWEN,XIAOBIANDAINIZHUBURENSHI“YITAIWANG”。

以太網的起源:ALOHA無線電系統

YITAIWANGQIYUANYUALOHAWUXIANDIANXITONG,ALOHASHISHIJIESHANGZUIZAODEWUXIANDIANJISUANJITONGXINWANG,YESHIZUIZAOZUIJIBENDEWUXIANSHUJUTONGXINXIEYI。ALOHABENSHIXIAWEIYIRENBIAOSHIZHIYIDEWENHOUYU,1968NIANMEIGUOXIAWEIYIDAXUEJIANGTAYONGZUOYIXIANGYANJIUJIHUADEMINGZI。

20SHIJI60NIANDAIHOUQIDEXIAWEIYIDAXUENorman AbramsonHETADETONGSHIMENKAIFALEYIGEWUXIANDIANWANGLUOJIALOHAWANGLUO。ALOHAZHEXIANGYANJIUJIHUADEZUICHUMUDESHIYAOJIEJUEXIAWEIYIQUNDAOZHIJIANDETONGXINWENTI。

ALOHA網絡可以使分散在各島的多個用戶通過無線電信道來使用中心計算機,從而實現一點到多點的數據通信

CHUNALOHAXIEYIDEGONGZUOYUANLIHENJIANDAN,ZHANDIANZHIYAOCHANSHENGZHEN,JIULIJIFASONGDAOXINDAOSHANG;GUIDINGSHIJIANNEIRUOSHOUDAOZHUJIYINGDA,BIAOSHIFASONGCHENGGONG,FOUZEZHONGFA。ZHONGFASHI,MEIGEZHANDIANXUDENGDAIYIDUANSUIJIDESHIJIAN,RANHOUZHONGFA;RUZAICICHONGTU,ZEZAIDENGDAIYIDUANSUIJIDESHIJIAN,ZHIDAOZHONGFACHENGGONGWEIZHI。

ZHEZHONGXIEYIJIANDANYIXING,DANYOUYUDUOGEZHANDIANGONGXIANGDEYIGECHUANSHUXINDAO,SUIZHUSHIYONGGAIXINDAODEZHANDIANYUDUO,FASHENGPENGZHUANGDEJILVYUGAO,CONGERDAOZHICHUANSHUYANCHIZENGJIAHEXINXILIUTONGLIANGJIANGDI。TONGGUOYANJIUZHENGMING,CHUNALOHAXIEYIDEXINDAOLIYONGLVZUIDABUCHAOGUO18.4%。

RUHEGAISHANXINDAODELIYONGLVCHENGWEIDANGSHIDENANTI。1972NIAN,RENMENFAMINGLEYIZHONGNENGBAXINDAOLIYONGLVTIGAOYIBEI(YUE37%)DEXINDAOFENPEICELVE,JISHIXIALOHAXIEYI。ZHEGEXIEYIDESIXIANGSHIBAXINDAOSHIJIANFENCHENGYIGEGEDESHIJIANCAO,CAOCHANGWEIYIGEZHENSUOXUDEFASONGSHIJIAN。QITAGUOCHENGYUCHUNALOHAXIEYIXIANGTONG。

KANDAOZHELI,CONGMINGDENIKENENGHUIWENZHEHEYITAIWANGYOUSHENMEGUANXINI?BIEJI,QINGKANXIAWENFENJIE

以太網誕生

快3开奖结果查询JINTIANWOMENZHIDAODEYITAIWANGSHIZAI1972NIANKAICHUANGDE, Robert MetcalfeBIANSHIQIFAMINGREN。TADANGSHISHISHILEPALUOAERTUOYANJIUZHONGXINDEWANGLUOZHUANJIA,TAJIESHOUDAODEDIYIRENWUSHIBAXerox ALTOJISUANJILIANDAO Arpanet(ArpanetSHI InternetDEQIANSHEN)。

Robert Metcalfe – 1973

RUHECAINENGSHIXIANYIDIANDAODUODIANDESHUJUTONGXIN?ZAIMetcalfeFANGWENZHUZAIHUASHENGDUNTEQUDE ArpanetJIHUADEGUANLIYUAN,OURANJIANFAXIANLEGUANYUALOHAXITONGDEZAOQIYANJIUCHENGGUO。MetcalfeRENSHIDAO,SUIRANAbramsonDUIALOHAXITONGDEMOUXIEYIWENZUOLEJIASHE,DANHUANYOUYOUHUADEKONGJIAN,TONGGUOYOUHUAKEYIBAALOHA XITONGDEXIAOLVTIGAODAOJIN100%。

1972NIANDI, MetcalfeHE David BoggsSHEJILEYITAOWANGLUO,JIANGBUTONGDEALTOJISUANJILIANJIEQILAI,JIEZHUYOUBANOVAJISUANJILIANJIEDAOEARSJIGUANGDAYINJI。GUANYUZHETAOWANGLUODEMINGMINGYEPOJUCHUANGYI,ZAIYANZHIGUOCHENGZHONG,MetcalfeBAZHETAOWANGLUOMINGMINGWEI ALTO ALOHAWANGLUO。 1973NIAN, MetcalfeJIANGQIGENGMINGWEI“YITAIWANG”, QILINGGANLAIZIYU”DIANCIFUSHESHIKEYITONGGUOFAGUANGDEYITAILAICHUANBODE”ZHEYIXIANGFA。ER“YITAI(EtherDEYINYI)”ZHEYICIHUIZUICHUSHIBEIGUXILAZHEXUEJIAYALISHIDUODESHEXIANGDEYIZHONGWUZHI,ZAI17SHIJIBEIDIKAERYINRUKEXUEJIE,HOUXUYIZAIBEIWULIXUEJIASHEXIANGWEIYIZHONGKONGJIANCHUANBOMEIJIE,ZHEYANGKANLAIYITAIWANGDEMINGZIPOJUZHEXUEYIWEI。GENGMINGZHIYUMetcalfeYEMINGQUEZHICHUGAIXITONGKEYIZHICHIRENHEJISUANJI,BUJINJINSHIALTOJISUANJI。

David Boggs 和一塊Alto Ethernet card

快3开奖结果查询ZUICHUDESHIYANXINGYITAIWANGSULVZHIYOU2.94Mbps,ZAINEIGESHIDAI,XIAZAI4GBDEWENJIANXUYAO4GEXIAOSHI,ERXIANZAI(YI100MKUANDAIWEICANKAODUIXIANG)ZHIXUYAO5FENZHONG。

3Mbps以太網

WEISHENMEZUICHUDEYITAIWANGZHEMEMANNI?YINWEIDIYIGEYITAIWANGDEJIEKOUDINGSHIQICAIYONGLEALTOXITONGSHIZHONG,GAISHIZHONGMEI340HAOWEIMIAOFASONGYICIMOCHONG,SUOYIYIMIAOZHINENGCHUANSONG2.94M bit,JI2.94Mbps(1000/340=2.94)。

快3开奖结果查询RUJINDEYITAIWANGBIZUICHUDEALOHAWANGLUOYOULEJUDADEGAIJIN,XIANZAIDEYITAIWANGCAIYONGLEZAIBOJIANTING(CSMA)JISHU,JIMEIGEZHANZAICHUANSHUZIJIDESHUJULIUZHIQIANXIANYAOTANTANWANGLUODEDONGJING。SUOYI,GAIJINHOUDEFANGANKESHIWANGLUODELIYONGLVTIGAOJIANGJIN100%。

快3开奖结果查询1976 NIAN 7 YUE,MetcalfeHEBoggsGONGTONGFABIAOLEYIPIANJUYOULICHENGBEIYIYIDELUNWEN——《YITAIWANG:BENDIJISUANJIWANGLUODEFENBUSHIBAOJIAOHUAN》。1977 NIANMO,Metcalfe、Boggs、YIJISHILEGONGSIDECharles ThackerHEButler LampsonHUODELE“YOUCHONGTUJIANCEDEDUODIANSHUJUTONGXINXITONG”DEYITAIWANGZHUANLI。

IEEE推進以太網標準化

70NIANDAIMO,SHUSHIZHONGJUYUWANGJISHUYIJINGYONGXIANCHULAI,ERYITAIWANGZHENGSHIQIZHONGDEYIYUAN。YIZHONGJISHURUGUOZHINENGYUDANGEGONGYINGSHANGDESHEBEIYIQISHIYONG,NAPATASHEJIDEZAIWANMEIYEWUJIYUSHI。LANBIXUNENGGOUYUJINKENENGDUODESHEBEIYIQISHIYONG,CAINENGFAHUITAZUIDADEJIAZHI。

正如Metcalfe 理解的那樣,計算機通信領域的革命需要每個人都能使用聯網技術。
因此還有一件比發明以太網專利更重要的事情就是如何將它成為產業標準?

快3开奖结果查询1979NIAN,TAZHUSHOUSHIYITAIWANGCHENGWEIYIGEKAIFANGDEBIAOZHUN,BINGSHUOFUSHILEGONGSIJIARUYIGEDUOGONGYINGSHANGLIANMENG,MUDESHISHIRENHEGONGSIDOUKEYISHIYONGDEYITAIWANGXITONGBIAOZHUNHUA。JIYUYITAIWANGJISHUDEKAIFANGSHIJISUANJITONGXINSHIDAIZHENGSHIKAISHIYU1980NIAN,DANGSHISHUZISHEBEIGONGSI(DEC)、YINGTEERGONGSI(Intel)HESHILEGONGSI(Xerox)LIANHEXUANBULE10mbpsYITAIWANGDEDIXBIAOZHUN。

在 DIX開展以太網標準化工作的同時,IEEE的局域網和城域網(LAN/MAN)標準委員會也著手制定一個類似的開放標準。DIX集團雖已推出以太網規范,但還不是國際公認的標準,所以在1981年6月,IEEE802工程決定組成802.3分委員會,以產生基于 DIX工作成果的國際公認標準,一年半后,19個公司宣布了新的 IEEE802.3草稿標準。1983年該草稿最終以 IEEE10 BASE5而面世。
注釋:10Base5:粗同軸電纜(指的是10Mbps速率基帶信號,傳輸距離500米)

圖:2013年IEEE發布的《以太網標準》30周年畫刊

以太網產品化商業化進程

快3开奖结果查询ZAIDEC、 Intel、XeroxDEGONGCHENGSHIMENRENGZAIJIAGONGYITAIWANGGUIFANSHI, MetcalfeQUEZAIXUNZHAOQITASHANGJI,GENGZHUNQUEDESHUOTAZAIXIANGBANFARANGYITAIWANGCHANPINHUA。TARENWEI,LAIZIDUOGEGONGYINGSHANGDEJISUANJIYINGGAINENGGOUTONGGUOTONGYONGDEWANGLUOJISHUJINXINGJIANRONGDETONGXIN,CONGERSHITAMENGENGYOUYONG,WEIYONGHUDAKAIYIDATAOXINGONGNENG。

快3开奖结果查询1979 NIAN6YUE,WEILESHIXIAN Computer communication compatibility DEMUBIAO,MetcalfeHETADEHAOPENGYOUHoward Charney、Ron Crane、Greg ShawHE Bill KrausCHENGLILE3ComGONGSI。3ComDEMINGZIJIUSHIZHIComputer communication compatibility,JISUANJITONGXINJIANRONGXING。

快3开奖结果查询1980NIAN8YUE,3ComGONGSIXUANBULETADEDIYIGECHANPIN,JIYONGYU UnixDESHANGYEBAN TCP/IP,BINGZAI 1980NIAN12YUECHANPINZHENGSHISHANGSHI,TONGNIANHUANSHOUDAOLEYIDABIFENGXIANJIJIN。ZAIJIEXIALAIDEYINIANZHONG,3ComGONGSIXIANHOUTUICHULEFUHE 802BIAOZHUNDEGEZHONGCHANPINRU3C100SHOUFAQI、CHAKADENG。

快3开奖结果查询MetcalfeDEZUICHUSHANGYEJIHUASHIBAZHEBIFENGXIANZIJINTOUDAOWEIXINGERENJISUANJIKAIFAYITAIWANGSHIPEIQIDEGONGZUOSHANG,YINWEICISHIGERENJISUANJIZAISHIJIEGEDIGANGGANGXINGQI。

左為Metcalfe,右為David Boggs

1981NIAN MetcalfeYUSUOYOUDEDAPAI PCGONGSI(BAOKUO IBMHEApple)SHANGTANJIANZAOYITAIWANGSHIPEIQIDEJIHUA。ZAI AppleGONGZUODE Steve Jobs(MEICUO,JIUSHIQIAOBUSI)LIJIBIAOSHIZANTONG,YINIANHOU3ComGONGSIWEIAppleJIPEIZHIDEDIYIPIYITAIWANGCHANPINTOUFANGSHICHANG。KENENGSHENGBUFENGSHI,GAIKUANCHANPINYISHIBAIGAOZHONG。

Steve Jobs

快3开奖结果查询LANSEJURENIBMDANGSHIYEXUANBULEZUICHUDE IBM PC,SUIRANTAMENMANGYUFAMINGZIJIDELINGPAIHUANWANGBINGMEIYOUHE3Com HEZUO,DANMINGMINGZHIZHONGQUECHENGLE3ComGONGSIDEPULUREN。3ComKAISHIKAIFA EtherLink ISASHIPEIQI。18GEYUEHOU,JI1982NIAN9YUE29RI,DIYITAI EtherLinkTOUFANGSHICHANG,BINGSUIJIPEIZHIXIANGYINGDEDOSQUDONGRUANJIAN。

DIYITAI EtherLinkZAIXUDUOFANGMIANYOUJISHUSHANGDETUPO:EtherLinkWANGLUOJIEKOUKAKETONGGUOGUIBANDAOTIJICHENGGONGYILAISHIXIAN;GENGZHONGYAODESHIEtherLinkCHENGWEI IBM PCDEDIYIGEYITAIWANGISAZONGXIANSHIPEIQI,ZHESHIYITAIWANGFAZHANSHISHANGDEYIGELICHENGBEI。

快3开奖结果查询MetcalfeJUEDINGYI IBM PCWEIMUBIAO,SHI3ComGONGSIDEDAOZUIDADELIRUN。1982NIANSHICHANGDUI PCDEXUQIUCHAOGUOYUCEZHI,IBMYIGEYUEJIUMAICHU20WANTAI PC,ZHANLINGLEDABANGEPCSHICHANG,KEXIDESHI IBMDANGSHIMEIYOURENSHIDAOGEGONGSIXIANGBATAMENDEGERENJISUANJILIANWANG。YEZHENGYINWEIRUCI,GEI3ComGONGSIDAILAILEQIJI。DAO1983NIANSHI,EtherLinkDESHENGYIHUOBAO,1984NIAN3ComDEGUPIAOKAISHISHANGSHI。

同年3Com、ICL(國際計算機有限公司)、HP將細纜以太網的概念提交給 IEEE,不久 IEEE就以l0BASE2承認它為官方標準。由于節點到節點的距離縮短到200米,所以將該標準稱為10BASE2;還有,由于它采用較便宜的細同軸電纜,因此也稱為 Cheapernet。
注釋:10Base2:細同軸電纜(指的是10Mbps速率基帶信號,傳輸距離最大值為200米)

以太網的持續演進

90NIANDAICHU,SUIZHUWANGLUODEFAZHAN,10MbpsDESULVXIANZHILEYIXIEDAGUIMOWANGLUODEYUNXING,CISHIYITAIWANGSHOUDAOLEFDDIDEJUDACHONGJI。FDDISHIYIZHONGANGGUIDEJIYU100MbpsGUANGLANDELANJISHU。

WEIXUNZHAODAITIFDDIDEJISHU,1992NIAN,Grand JunctionGONGSICHENGLI,KAISHIYANZHI100MbpsDEYITAIWANG。GAIGONGSIDECHUANGSHIRENJIUSHIHoward Charney。

Howard Charney

CharneyYU1980NIANYUTARENGONGTONGCHUANGLILESHIZHI30YIMEIYUANDEGONGSI3Com,12NIANHOUYOUCHUANGLILEGrand Junction Networks,BINGYU1995NIANBEICiscoSHOUGOU。ZAITATUIXIUZHIQIAN,TACENGDANRENCiscoZONGCAIBANGONGSHIGAOJIFUZONGCAIJIANSHOUXIZHIXINGGUAN。

1993NIAN,YIGrand JunctionWEISHOUDEDUOJIAGONGSICHENGLILEKUAISUYITAIWANGLIANMENG(FEA)。TONGNIAN,FEAGONGBULETADE100BASE-XHUCAOZUOGUIFAN。1995NIAN3YUE,IEEE802.3uGUIFAN(100ZHAOBITEMEIMIAOYITAIWANGDEBIAOZHUN)BEITADECHENGYUANHEZHIWEIHUITONGGUO。YUSHIKUAISUYITAIWANGDESHIDAIXUANBULAILIN。1995NIANMO,GECHANGJIARIXINYUEYIDIBUDUANTUICHUXINDEKUAISUYITAIWANGCHANPIN,KUAISUYITAIWANGDADAOLEDINGSHENGSHIDAI。

1995NIAN11YUE,IEEE802.3BIAOZHUNWEIYUANHUIZUJIANLEYIGEXINDE“GAOSUYANJIUZU(High-Speed Study Group)”,YANJIU1000MbpsSULVDEYITAIWANG。1996NIAN3YUE,IEEEZUJIANLEXINDE802.3z(QIANZHAOYITAIWANGJISHUDEBIAOZHUNZHIYI)GONGZUOZU,FUZEYANJIUGANZHAOWEIYITAIWANG,ZHIDINGXIANGYINGDEBIAOZHUN。1998NIAN,IEEEFABU802.3z,1000MbpsDEYITAIWANGBIAOZHUN。

快3开奖结果查询2002NIAN,10GEYITAIWANGBIAOZHUN802.3aeZHENGSHIFABU,10GEYITAIWANGYU1000MYITAIWANGXIANGBI,10GEZHIZHICHIQUANSHUANGGONG,ZHIZHICHIGUANGXIANZUOWEICHUANSHUJIEZHI,10GEKEYIYINGYONGYUGUANGYUWANGWANWULICENGJISHUSONET/SDH。

ZAIJIEXIALAIDEYITAIWANGFAZHANGUOCHENGZHONG,YITAIWANGYIJINGBUJINJINSHIYIZHONGJUYUWANGJISHU,TAYIZHUJIANYINGYONGYUCHENGYUWANGMANHEGUANGYUWANGWAN。

快3开奖结果查询2002NIANHOUYITAIWANGKUAISUFAZHAN。BANIANHOU,IEEEPIZHUNLE40 GbEHE100 GbE,TONGGUOJUHE10 GbpsTONGDAOSHIXIANZHEXIESUDU。

2016NIAN,ZAICHAODAGUIMOWANGLUOGONGSIDEXUQIUTUIDONGXIA,IEEEPIZHUNLE25 GbE,GAISUDUYOUWANGBI10 GbEKUAI2.5BEI,DANBI40 GbEGENGJUCHENGBENXIAOYI。YINWEI25 GbEKEYITONGGUOZENGJIADANGETONGDAODERONGLIANGLAITIGAOTUNTULIANG,ERBUSHIJUHEDUOGEDIRONGLIANGTONGDAO,SUOYIBI40 GbESUOXUDEDIANLANHEDIANYUANGENGSHAO,BINGQIEDUANKOUMIDUGENGGAO。ZAIMOUXIEQINGKUANGXIA,SHENGJIDAO25 GbEKESHISHUJUZHONGXINYUNYINGSHANGYANCHANGJIJIADINGJIAOHUANJIDESHIYONGSHOUMING,BINGBIMIANDUIBUXIANJICHUSHESHIJINXINGQUANMIANDEFANXINHEGENGHUAN。

2017NIANDI,WANGLUOXINGYEPIZHUNLE200 GbEHE400 GbE,JUNJIYU50 GbpsDANTONGDAO。SUIZHUDUIGENGKUAIDAIKUANDEXUQIUMENGZENG(YOUQISHIZAIYUNTIGONGSHANGHEQITACHAODAXINGSHUJUZHONGXINYUNYINGSHANGZHONG),BIAOZHUNWEIYUANHUIXIANZAIJIANGZHUYILIZHUANXIANG800 Gbps、1 TbpsJIYISHANG。

YITAIWANGCONGFAMINGZHIJINYIYOU40DUONIANDELISHI,CONG10MbpsDAO400 GbE,YITAIWANGDEFAZHANSUDURUTONGWANGSUYIYANGKUAI,ZHICIBENWENJIANGGANXIENEIXIECENGJINWEIYITAIWANGZUOCHUGONGXIANDEQIANBEI。

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SDNLAB君 發表于20-01-14
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