Wired vs. Wireless Networking

Cov txheej txheem:

Wired vs. Wireless Networking
Wired vs. Wireless Networking
Anonim

Computer tes hauj lwm rau hauv tsev thiab kev lag luam me siv cov cuab yeej siv xov tooj lossis wireless. Wired Ethernet yog ib qho kev xaiv rau tsev thiab lag luam. Txawm li cas los xij, Wi-Fi thiab lwm yam kev xaiv wireless tam sim no muaj nyob hauv tsev, thaum ntau lub lag luam tseem cia siab rau cov xov tooj sib txuas.

Ob txoj hauv kev muaj qhov zoo sib xws, thiab ob qho tib si sawv cev rau kev xaiv siv tau rau hauv tsev thiab lwm qhov chaw hauv cheeb tsam (LANs). Peb tau tshuaj xyuas ob lub thev naus laus zis los pab koj txiav txim siab qhov twg yog qhov zoo tshaj plaws rau koj lub network me me.

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Kev Tshawb Nrhiav Txhua Yam

  • ze ze rau lub router yuav tsum tau.
  • Kev ruaj ntseg.
  • Kev tswj hwm ntau dua.
  • Ntau txoj kev ywj pheej (hauv thaj tsam).
  • Kev ywj pheej.
  • kev nyab xeeb txaus ntshai.

Wired LANs siv Ethernet cables thiab network adapters. Ob lub khoos phis tawj tuaj yeem txuas rau ib leeg siv Ethernet crossover cable. Txawm li cas los xij, wired LANs feem ntau xav tau cov khoom siv xws li hubs, keyboards, lossis routers kom haum rau ntau lub khoos phis tawj.

Nrov WLAN thev naus laus zis ua raws li ib qho ntawm peb tus qauv kev sib txuas lus Wi-Fi tseem ceeb. Cov txiaj ntsig ntawm kev sib txuas lus wireless nyob ntawm tus qauv ua haujlwm:

  • 802.11b yog thawj tus qauv siv dav hauv WLANs.
  • Tus qauv 802.11a sai dua tab sis kim dua 802.11b. Tus qauv 802.11a feem ntau pom nyob rau hauv kev lag luam network.
  • Ib tus qauv, 802.11g, sim ua kom zoo tshaj plaws ntawm 802.11a thiab 802.11b. Txawm li cas los xij, nws yog qhov kev xaiv sib txuas hauv tsev kim dua.
  • Tus qauv tshiab tshaj plaws, 802.11ac, ua haujlwm ntawm 5 GHz band thiab muaj kev nrawm dua 3 Gb / s.

Txhua lub xov tooj thiab wireless sib txuas ua kom haum cov routers broadband, uas tso cai yooj yim sib koom ntawm cable modem lossis DSL internet txuas thiab suav nrog kev txhawb nqa firewall.

Installation: Lub Sijhawm thiab Kev Txiav Txim Siab

  • Txhua lub cuab yeej yuav tsum muaj zog-wired.
  • Ib lub sijhawm siv sijhawm.
  • Yooj yim rau kev teeb tsa.
  • Quick installation.
  • Ntau layout xaiv.
  • Ob qhov kev xaiv xaiv.

Ethernet cables yuav tsum khiav ntawm txhua lub khoos phis tawj mus rau lwm lub khoos phis tawj lossis mus rau hauv nruab nrab. Nws tuaj yeem siv sijhawm ntev thiab nyuaj rau kev khiav cables hauv pem teb lossis los ntawm phab ntsa, tshwj xeeb tshaj yog thaum cov khoos phis tawj nyob hauv chav sib txawv. Qee lub tsev tshiab yog pre-wired nrog CAT5 cable. Qhov no ua kom yooj yim rau cov txheej txheem cabling thiab txo qis kev ua haujlwm tsis zoo.

Txoj kev teeb tsa raug cai rau lub xaim LAN sib txawv nyob ntawm qhov sib xyaw ntawm cov khoom siv, hom kev sib txuas hauv is taws nem, thiab seb puas siv sab hauv lossis sab nraud. Txawm li cas los xij, tsis muaj ib qho ntawm cov kev xaiv no nyuaj dua li, piv txwv li, txuas lub tsev ua yeeb yam hauv tsev.

Tom qab kev teeb tsa kho vajtse, cov kauj ruam ntxiv los teeb tsa ob lub xov tooj lossis wireless LANs tsis txawv ntau. Ob leeg cia siab rau tus txheej txheem Internet Protocol thiab network operating system configuration xaiv. Laptops thiab lwm yam khoom siv nqa tau yooj yim feem ntau muaj kev txav mus los ntau dua hauv kev teeb tsa hauv tsev wireless (tsawg kawg rau ntev li ntev tau lawv cov roj teeb tso cai).

Wi-Fi tes hauj lwm tuaj yeem teeb tsa hauv ob txoj hauv kev:

  • Ad-hoc hom tso cai rau cov khoom siv wireless sib txuas lus hauv cov phooj ywg-rau-peer hom nrog ib leeg.
  • Infrastructure hom tso cai rau cov khoom siv wireless sib txuas lus nrog lub hauv nruab nrab ntawm qhov uas, dhau los, sib txuas lus nrog cov kab txuas ntawm qhov LAN.

Feem ntau LANs xav tau kev tsim kho vaj tse kom nkag tau hauv internet, lub tshuab luam ntawv hauv zos, lossis lwm cov kev pabcuam xaim. Ad hoc hom txhawb nqa cov ntaub ntawv yooj yim sib koom ntawm cov khoom siv wireless.

Ob hom Wi-Fi xav tau wireless network adapters, qee zaum hu ua WLAN phaib. Infrastructure hom WLANs kuj yuav tsum muaj lub hauv paus ntaus ntawv hu ua qhov chaw nkag. Qhov chaw nkag yuav tsum tau nruab rau hauv qhov chaw nruab nrab uas cov xov tooj cua wireless tuaj yeem ncav cuag nws nrog kev cuam tshuam tsawg. Txawm hais tias Wi-Fi teeb liab feem ntau ncav cuag 100 ko taw (30 m) lossis ntau dua, kev cuam tshuam zoo li phab ntsa tuaj yeem txo qhov ntau yam no.

Tus Nqi: Nqi thiab Offsets

  • Tseem kim.
  • Yuav tsum tau kho vajtse ntxiv.
  • Nominal software nqi.
  • Nqis peev.
  • Yuav tsum tau siv tsawg dua.
  • Tsis xav tau software tshwj xeeb.

Ethernet cables, hubs, thiab keyboards yog pheej yig. Qee qhov kev sib txuas-kev sib koom software, xws li ICS, yog dawb; hos ib co nqi nominal nqi. Broadband routers raug nqi ntau dua, tab sis cov no yog cov khoom xaiv ntawm lub xov tooj LAN. Tus nqi siab dua ntawm broadband routers yog offset los ntawm cov txiaj ntsig ntawm kev txhim kho yooj yim dua thiab ua haujlwm ruaj ntseg nta.

Wireless iav raug nqi me ntsis ntau dua li cov khoom siv Ethernet sib npaug. Ntawm tag nrho cov nqi muag khoom, wireless adapters thiab cov ntsiab lus nkag yuav raug nqi peb zaug ntau npaum li Ethernet cable adapters, lossis plaub zaug ntau npaum li hubs thiab keyboards.

Kev ntseeg tau: Ua ntej Negate Sib piv

  • Txoj kev ntseeg siab.
  • Tshaj xyoo siv.
  • cables ua tsis tau tejyam yuav muaj teeb meem.
  • Txhim kho kev ntseeg siab dua cov qauv qub.
  • Multi-functionality txhais tau tias tsawg dua kev ntseeg.
  • Kev cuam tshuam tuaj yeem ua rau muaj teeb meem.

Ethernet cables, hubs, thiab keyboards yog txhim khu kev qha, feem ntau vim tias cov tuam ntxhab tau txuas ntxiv txhim kho Ethernet thev naus laus zis ntau xyoo dhau los. Cov kab xoob xoob yuav yog qhov feem ntau ntawm qhov tsis ua haujlwm nyob rau hauv ib qho kev sib txuas. Thaum koj nruab ib lub xov tooj LAN lossis txav ib yam khoom, xyuas cov kev sib txuas ntawm cable.

Broadband routers kuj raug kev txom nyem los ntawm cov teeb meem kev ntseeg tau yav dhau los. Tsis zoo li lwm yam Ethernet iav, cov khoom no yog cov tshiab, ntau yam khoom siv. Broadband routers tau loj hlob ntau xyoo dhau los, thiab kev ntseeg tau zoo dua.

Wireless LANs raug kev txom nyem ntau dua li cov teeb meem kev ntseeg siab dua li wired LANs, txawm tias tsis txaus los ua qhov kev txhawj xeeb tseem ceeb. Feem ntau cov teeb liab wireless raug cuam tshuam los ntawm lwm yam khoom siv hauv tsev, suav nrog microwave ncu, xov tooj tsis muaj zog, thiab lub qhov rooj qhib qhov rooj. Kev teeb tsa ua tib zoo txo qis qhov muaj feem cuam tshuam.

Wireless networking cov khoom, tshwj xeeb yog cov uas siv 802.11ac, yog qhov tshiab. Raws li nrog rau cov cuab yeej tshiab, nws yuav siv sij hawm rau cov khoom no kom paub tab.

Kev Ua Haujlwm: Ceev yog qhov tseem ceeb

  • kev ua tau zoo.
  • Txaus rau ntau siv.
  • Hubs tuaj yeem txwv qhov nrawm.
  • Less bandwidth.
  • Ntau yam khoom siv txo qis.
  • Accessories tuaj yeem txhim kho nrawm.

Wired LANs muaj kev ua tau zoo dua. Kev sib txuas Ethernet tsuas yog muaj 10 Mbps bandwidth, tab sis 100 Mbps Fast Ethernet thev naus laus zis raug nqi me ntsis ntxiv thiab tau yooj yim muaj. Txawm hais tias 100 Mbps sawv cev rau qhov kev ua tau zoo tshaj plaws uas tsis tau ua tiav hauv kev xyaum, Fast Ethernet yuav tsum txaus rau kev sib koom ua ntaub ntawv hauv tsev, kev ua si, thiab kev siv internet ceev rau ntau xyoo rau yav tom ntej.

Wired LANs uas siv hubs tuaj yeem raug kev ua haujlwm qeeb yog tias ntau lub khoos phis tawj nkag mus rau lub network ib txhij. Siv Ethernet hloov pauv hloov hubs kom tsis txhob muaj teeb meem no. Ib tus nqi hloov pauv me ntsis ntau dua li lub hub.

Wireless LANs siv 802.11b txhawb nqa qhov siab tshaj plaws theoretical bandwidth ntawm 11 Mbps, kwv yees ib yam li qub, cov pa Ethernet. 802.11a thiab 802.11g WLANs txhawb 54 Mbps, uas yog kwv yees li ib nrab ntawm cov bandwidth ntawm Fast Ethernet.

Tsis tas li ntawd, kev ua haujlwm ntawm Wi-nkaus yog qhov ntsuas deb, txhais tau tias kev ua haujlwm tsis zoo ntawm cov khoos phis tawj uas nyob deb ntawm qhov chaw nkag lossis lwm qhov kawg ntawm kev sib txuas lus. Raws li ntau cov khoom siv wireless nkag mus rau WLAN hnyav dua, kev ua haujlwm qis dua ntxiv.

Zuag qhia tag nrho, kev ua tau zoo ntawm Wi-Fi niaj hnub no txaus rau kev sib txuas hauv tsev hauv internet thiab sib qhia cov ntaub ntawv. Nws feem ntau tsis txaus rau kev ua si hauv tsev LAN yam tsis muaj kho vajtse zoo.

Kev txav mus los ntau dua ntawm wireless LANs offsets qhov kev ua haujlwm tsis zoo. Cov khoos phis tawj txawb tsis tas yuav tsum tau khi rau Ethernet cable thiab tuaj yeem taug kev ywj pheej hauv WLAN ntau yam. Txawm li cas los xij, ntau lub khoos phis tawj hauv tsev yog cov qauv duab, thiab cov khoos phis tawj ntawm tes yuav tsum tau muab khi rau ib qho hlua hluav taws xob thiab qhov hluav taws xob rau lub zog.

Kev Nyab Xeeb: Kev Nyuaj Siab Yog Tiag

  • Tsis txhawb firewalls.
  • Devices tuaj yeem siv kev tiv thaiv firewall.
  • Cannot hack wirelessly.
  • Built-in firewall muaj peev xwm.
  • tuaj yeem cuam tshuam wirelessly.
  • Kev tiv thaiv kev tiv thaiv muaj nyob.

Rau txhua qhov txuas LAN txuas rau hauv is taws nem, firewalls yog thawj qhov kev xav txog kev nyab xeeb. Wired Ethernet hubs thiab keyboards tsis txhawb firewalls. Txawm li cas los xij, firewall software khoom xws li ZoneAlarm tuaj yeem ntsia tau rau hauv computers. Broadband routers muab qhov sib npaug firewall ua rau hauv lub cuab yeej, teeb tsa los ntawm nws cov software.

Hauv txoj kev xav, wireless LANs tsis muaj kev nyab xeeb dua li xaim LANs. Qhov no yog vim hais tias wireless kev sib txuas lus teeb liab taug kev los ntawm huab cua thiab tuaj yeem cuam tshuam. Txhawm rau ua pov thawj lawv cov ntsiab lus, qee tus engineers tau txhawb nqa kev coj ua ntawm pawg ntseeg. Wardriving cuam tshuam nrog kev mus los ntawm thaj chaw nyob nrog cov cuab yeej Wi-Fi thiab tshuaj xyuas cov huab cua rau WLANs uas tsis muaj kev tiv thaiv zoo.

Ntawm qhov sib npaug, txawm li cas los xij, qhov tsis muaj zog ntawm kev ruaj ntseg wireless yog qhov kev xav ntau dua li qhov ua tau. WLANs tiv thaiv cov ntaub ntawv los ntawm cov qauv encryption uas ua rau kev sib txuas lus wireless kom nyab xeeb zoo li cov xaim hauv tsev.

Tsis muaj lub khoos phis tawj network muaj kev nyab xeeb kiag li, txawm li cas los xij. Kev txiav txim siab txog kev ruaj ntseg tseem ceeb rau cov tswv tsev tsis cuam tshuam txog seb lub network puas yog xaim lossis wireless. Hloov chaw, kev ruaj ntseg network yuav tsum xyuas kom meej tias:

  • Lub tsev qhov hluav taws xob hauv internet tau teeb tsa kom raug.
  • Tsev neeg paub txog kev phom sij ntawm internet spoof emails thiab yuav ua li cas thiaj paub cov emails.
  • Tsev neeg paub txog lub tswv yim ntawm spyware thiab yuav ua li cas kom tsis txhob nws.
  • Tus menyuam mos, tus saib xyuas tsev, thiab lwm tus qhua tsis muaj kev nkag mus rau lub network tsis tsim nyog.

Kev Txiav Txim Kawg

Yog tias koj paub tus nqi, xav tau qhov kev ua tau zoo tshaj plaws ntawm koj lub tsev, thiab tsis quav ntsej txog kev txav mus los, lub xaim Ethernet LAN tej zaum yuav yog rau koj.

Yog tias tus nqi tsis tshua muaj kev txhawj xeeb, koj nyiam ua tus thawj coj ntawm cov thev naus laus zis thev naus laus zis, thiab koj txhawj xeeb txog kev xaim koj lub tsev lossis kev lag luam me nrog Ethernet cable, ces xav txog lub wireless LAN.

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