Cas network switches piv rau hub thiab routers
Lub voj voog ua lag luam yog qhov cuab yeej me me uas ua rau kev sib txuas lus ntawm cov kev sib txuas nrog ntau yam nyob hauv ib cheeb tsam network (LAN) .
Stand-alone Ethernet hloov khoom siv feem ntau siv nyob rau hauv cov tuam txhab hauv tsev ntau xyoo ua ntej tsev kawm ntawv broadband routers nrov nrov. Cov neeg niaj hnub siv txoj hauv kev txuas rau Ethernet hloov ncaj qha mus rau hauv chav tsev ua ib qho ntawm lawv cov haujlwm tseem ceeb.
Cov kev sib koom tes ntawm kev ua haujlwm hauv tsev kawm ntawv tseem siv dav hauv cov tuam txhab thiab cov chaw khaws ntaub ntawv. Lub koos pij tawj muaj qee zaus hu ua hub hub, chais hub lossis MAC txuas hniav.
Txog Network Switches
Thaum hloov kev muaj peev xwm muaj nyob rau ntau hom ntawm tes hauj lwm xws li ATM , Fiber Channel , thiab Token Ring , Ethernet keyboards yog hom tshaj plaws.
Mainstream Ethernet keyboards zoo li cov neeg hauv cov lag luam hauv broadband txhawb Gigabit Ethernet speeds rau txhua tus neeg txuas, tab sis cov keyboards siab zoo li cov chaw hauv cov chaw zov me nyuam feem ntau txhawb 10Gbps ib qhov txuas.
Txawv ntawm cov qauv ntawm cov keyboards ntau qhov sib txawv ntawm cov khoom siv txuas. Consumer-grade network keyboards muab plaub los sis yim txuas rau Ethernet cov khoom, thaum cov neeg siv keyboards feem txhawb ntawm 32 thiab 128 sib txuas.
Hloov tau ntxiv thiab sib txuas rau ib leeg, daisy-chaining txoj kev ntxiv rau cov lej ntau dua li ntawm LAN.
Tswj thiab Kev Kaw Tseg Tsis Tau
Cov kev hloov yooj yim network xws li cov siv hauv kev pabcuam pejxeem tsis muaj teebmeem tshwjxeeb tshaj qhov kev khawb hauv cables thiab fais fab.
Muab piv rau cov kauj ruam uas tsis muaj kev tswj hwm, kev siv cov cuab yeej siv rau hauv tuam txhab ua lag luam txhawb nqa ntau yam kev lag luam uas tau tsim los tswj los ntawm ib tus neeg khiav dej num haujlwm. Nrov nta ntawm cov tswj kev tswj muaj xws li SNMP xyuas, txuas aggregation, thiab QoS yug.
Fais fab kev tswj kev ua lag luam yog ua tau los ntawm kev tswj ntawm Unix-style hais kom ua interfaces. Ib qho tshiab ntawm kev tswj cov keyboards hu ua ntse kauj ruam, tsom rau ntawm tes-theem thiab nruab nrab cov tuam txhab lag luam, kev them nyiaj yug web-raws interfaces zoo ib yam li lub tsev router.
Network Hloov Qhov Kev Sib Hlis thiab Kev Tshawb Fawb
Lub voj voog ntawm lub cev tsis zoo li lub vas hub . Tsis zoo li cov hubs, txawm li cas los, cov keyboards cov cuab yeej muaj peev xwm tshawb xyuas cov khoom xa tuaj raws li lawv tau txais thiab coj lawv mus rau ib qho kev sib txuas lus chaw nres nkoj -siv tshuab hu ua pob ntawv hloov .
Tus tes hloov qhov txiav txim qhov chaw thiab chaw nyob chaw nyob ntawm txhua pob ntawv thiab forwards cov ntaub ntawv nkaus xwb rau cov kev pabcuam, thaum hubs xa cov pob ntawv mus rau txhua qhov chaw nres nkoj tshwj tsis yog lub uas tau txais tsheb khiav. Nws ua haujlwm li no kom txuag network bandwidth thiab feem ntau txhim kho kev kawm piv rau cov hub.
Kaw kuj zoo tib yam xws li network routers. Thaum routers thiab keyboards ob qho tib si centralize cov chaw sib txuas, tsuas routers muaj kev txhawb rau interfacing mus rau sab nraud tes hauj lwm, yog hauv zos networks los yog hauv internet.
Txheej 3 Keyboards
Traditional network keyboards muaj nyob ntawm Layer 2 Data Link Layer ntawm OSI qauv . Txheej 3 keyboards uas sib tov nrog cov cuab yeej kho vajtse ntawm cov keyboards thiab routers rau hauv ib lub tshuab ntaus qis kuj tau muab tso rau ntawm qee cov tuam txhab lag luam.
Piv rau cov keyboards, Layer 3 keyboards zoo txhawb rau virtual LAN (VLAN) configurations.