Local Area Network (LAN)
Zvinoreva boka remakomputa rakaumbwa nemakomputa akawanda akabatana mune imwe nzvimbo. Kazhinji, iri mukati mezviuru zvishoma mamita muhupamhi. LAN inogona kuona faira maneja, application software kugovera, kudhinda
Zvimiro zvinosanganisira kugovera muchina, kuronga mukati memapoka ebasa, email uye fax kutaurirana masevhisi, nezvimwe. Nharaunda yenharaunda yakavharwa uye inogona kuumbwa nemakombiyuta maviri muhofisi.
Inogona kuve nezviuru zvemakomputa mukati mekambani.
Wide Area Network (WAN)
Muunganidzwa wemakombuta network inotenderera nzvimbo huru, yedunhu. Kazhinji mumatunhu, maguta, kana kunyange nyika. Nzvimbo yakakura network inosanganisira subnets ehukuru hwakasiyana. Subnets anogona
Inogona kunge iri nharaunda yenharaunda network kana diki yakafara nzvimbo network.
Musiyano pakati penzvimbo yenzvimbo network uye yakakura nzvimbo network
Nharaunda yenharaunda iri mukati meimwe nzvimbo, nepo network yenzvimbo yakakura inotambanudzira nzvimbo yakakura. Saka sei kutsanangura nzvimbo iyi? Somuenzaniso, hofisi huru yekambani huru iri muBeijing.
Beijing, uye mapazi akapararira munyika yose. Kana iyo kambani ikabatanidza matavi ese pamwechete kuburikidza netiweki, ipapo bazi inzvimbo yenzvimbo network, uye muzinda wese.
Iyo kambani network inzvimbo yakakura network.
Ndeupi musiyano uripo pakati peWAN port uye LAN port ye router?
Yanhasi Broadband router inonyatso yakasanganiswa chimiro che routing + switch. Tinogona kuzvifunga semidziyo miviri.
WAN: Inoshandiswa kubatanidza kune ekunze IP kero, kazhinji inoreva kune egress, uye kumberi IP data mapaketi kubva mukati meLAN interface.
LAN: Inoshandiswa kubatanidza kune yemukati IP kero. Mukati meLAN mune switch. Hatigone kubatana kune WAN port uye kushandisa iyoroutersemunhuwo zvakechinja.
Wireless LAN (WLAN)
WLAN inoshandisa electromagnetic waves kutumira uye kugamuchira data pamusoro pemhepo pasina kudiwa kwetambo media. Iyo data yekufambisa dhata yeWLAN ikozvino inogona kusvika 11Mbps, uye kureba kwekufambisa kuri
Chinhambwe chinodarika 20km. Seimwe nzira kana kuwedzera kwechinyakare wiring network, isina waya LAN inosunungura vanhu kubva kumadhesiki avo uye inovabvumira kushanda chero nguva.
Kuwana ruzivo kwese kupi kunovandudza hofisi yevashandi.
WLAN inotaurirana ichishandisa ISM (Industrial, Scientific, Medical) nhepfenyuro bhendi. Iyo 802.11a chiyero cheWLAN inoshandisa 5 GHz frequency bhendi uye inotsigira zvakanyanya
Iyo yakanyanya kumhanya i54 Mbps, nepo 802.11b uye 802.11g zviyero zvinoshandisa 2.4 GHz bhendi uye kumhanya kwekutsigira kunosvika 11 Mbps uye 54 Mbps zvakateerana.
Saka chii WIFI yatinowanzo shandisa kuwana iyo Internet?
WIFI iprotocol yekushandisa isina waya network (chaizvo chibvumirano chekubata ruoko), uye WIFI chiyero cheWLAN. WIFI network inoshanda mu2.4G kana 5G frequency band. Zvimwe
Yekunze 3G/4G zvakare isina waya network, asi maprotocol akasiyana uye mutengo wakakwira zvakanyanya!
Virtual Local Area Network (VLAN)
Virtual LAN (VLAN) inoreva tekinoroji yetiweki inobvumira masayiti arimunetiweki kuti apatsanurwe zviri nyore kuita akasiyana anonzwisisika subnets zvinoenderana nezvinodiwa, zvisinei nenzvimbo yavo chaiyo.
Semuyenzaniso, vashandisi pauriri hwakasiyana kana mumadhipatimendi akasiyana vanogona kujoina maLAN akasiyana-siyana sezvinodiwa: uriri hwekutanga hwakakamurwa kuita 10.221.1.0 network segment, uye yechipiri pasi yakakamurwa kuita.
10.221.2.0 network segment, nezvimwe.
Nguva yekutumira: Mar-19-2024
