Kubatanidzwa kweTerecommunication neComputer Networks
Kubatanidzwa kwekutaurirana nemakombiyuta uye network dzemakombiyuta ndeimwe yenheyo huru dzekuchinja kwedhijitari munguva yazvino. Kunyange zvazvo kutaurirana kwaimbove kwakafanana nemabasa ezwi (foni) uye makombiyuta akamira semasisitimu emakombiyuta akazvimiririra, ikozvino maviri aya akabatana muhurongwa hwekutaurirana kwedata hunokurumidza, hunochinjika, uye hwakabatana. Kubatanidzwa uku kunogonesa kuchinjana kwemashoko mumhando dzakasiyana-siyana - zvinyorwa, izwi, vhidhiyo, uye data re sensor - kuburikidza ne network dzepasi rose munguva chaiyo. Muchokwadi, kubatanidzwa uku ndiko kunotungamira masevhisi einternet, maapplication enharembozha, vhidhiyo yemusangano, masevhisi egore, Internet of Things (IoT), uye masisitimu akasiyana-siyana eruzivo anotsigira mabhizinesi nemabasa eruzhinji.
Tsanangudzo uye Chimiro cheKubatanidzwa
Zvichitaurwa zviri nyore, kutaurirana nefoni inzira yekutumira ruzivo kure kure kuburikidza nekutumira ruzivo senge tambo dzemhangura, fiber optics, mafungu eredhiyo, kana masatelite. Panguva imwe chete, network yemakomputa muunganidzwa wemidziyo yekombuta (makombiyuta, maseva, marouter, maswichi, nezvimwe zvishandiso) zvakabatana kuti zvigovane zviwanikwa uye kuchinjana data uchishandisa maprotocol chaiwo.
Kubatanidzwa kwenharembozha nemakombiyuta zvinoreva kuunganidza tekinoroji, zvivakwa, uye mwero wekutaurirana kuti data rifambe zvakanaka kubva kumidziyo yekombuta kuenda kune network dzekutaurirana, uye zvinopesana. Kubatanidzwa uku hakungosanganisiri chete zvinhu zvepanyama (media yekutumira nemidziyo) asiwo zvinhu zvine musoro zvakaita semitemo yekutaurirana, kugadzirisa, manejimendi, kuchengetedzeka, uye mhando yebasa (QoS).
Kushanduka-shanduka: Kubva paNhare dzeInzwi kuenda kuNhare dzeData
Kare kare, network dzekutaurirana dzaiwanzoshandisa circuit switching, uko tambo yekutaurirana yakavakwa yega yefoni. Iyi modhi yaive yakakodzera kutaurirana nezwi, asi isingashande zvakanaka pakuparadzira data redhijitari, senge web access kana email. Nzvimbo dzemakombiyuta dzakashanduka nekuchinjana mapaketi, izvo zvinoparadzanisa data kuita mapaketi madiki kuti atumirwe nenzira dzinochinjana uye agovaniswe nevamwe vashandisi.
Sezvo internet yaikura nekukurumidza, simba rekuchinjana mapaketi rakawedzera. Tekinoroji dzakadai seTCP/IP dzakava chiyero chekutaurirana pasi rose. Nekuda kweizvozvo, kutaurirana kwemazuva ano kwakachinja kuenda kune network dzakavakirwa paIP. Muenzaniso wakajeka zvikuru ndeweVoice over IP (VoIP), uko izwi rinoshandurwa kuita data redhijitari uye rinotumirwa semapaketi eIP, richitsiva mitsara yefoni yenguva dzose. Kuchinja uku kwakazopedzisira kwakonzera pfungwa yenetwork yakabatana, network imwe chete, yakabatanidzwa yemasevhisi akasiyana-siyana: izwi, data, uye vhidhiyo.
Zvikamu Zvikuru Mukubatanidzwa
Kuti kubatanidzwa kushande zvakanaka, pane zvinhu zvikuru zvakawanda zvinotsigirana:
1. Zvivakwa zvekufambisa
Midhiya yekutumira mashoko ndiyo musimboti wekubatanidza. Fiber optics inopa bandwidth yakakwira uye latency yakaderera yekubatanidza pakati pemaguta nenyika. Panguva iyi, network dzisina waya dzakadai se4G/5G dzinoita kuti pave nekufamba kwakakwirira.
2. Zvishandiso zvenetwork
Ma router nema switch zvinotarisira traffic yedata packet. Kudivi rekutaurirana, zvishandiso zvakaita se base stations (BTS/eNodeB/gNodeB), backbone devices, uye gateways zvinobatanidza network dze operator ne internet.
3. Maitiro ekutaurirana uye mitemo
TCP/IP ndiyo musimboti wekubatana kwemakomputa emazuva ano uye kutaurirana. Inoshandisa maprotocol akadai seHTTP/HTTPS yewebhu, SIP yeVoIP, RTP yekutumira manzwi/mavhidhiyo, uye DNS yekushandura mazita edomeini.
4. Sisitimu yekugadzirisa network
Kubatanidzwa kwehurongwa kunoda kutariswa kwekushanda, kugadziriswa, uye kudzorwa kwemabasa. Network Management System (NMS) kana Software-Defined Networking (SDN) inobatsira kuti manejimendi ashande zvakanaka.
5. Kuchengetedzwa kwenetiweki
Sezvo kubatana kuri kuwedzera, njodzi dzinowedzerawo. Mafirewall, IDS/IPS, VPN, encryption, uye multi-factor authentication zviri kuva zvikamu zvakakosha zve network dzakabatanidzwa.
Mabhenefiti ekubatanidzwa kwezvikamu zvakasiyana-siyana
Kubatanidzwa kwenharembozha nemakombiyuta kwave nemhedzisiro huru muzvikamu zvakasiyana-siyana:
- Bhizinesi neindasitiri: Makambani anogona kubatanidza mahofisi ebazi, masisitimu ekugadzira, macheni ekutengesa, uye sevhisi yevatengi mukati mehurongwa humwe chete hwedhijitari. Izvi zvinokurumidzisa kutaurirana, zvinoderedza mitengo, uye zvinoita kuti pave nesarudzo dzakawanda dzinotungamirirwa nedata.
– Dzidzo: Kudzidza online, makirasi akasiyana-siyana, uye mukana wekuwana zvinhu zvedhijitari zvinoda network yakagadzikana uye yakabatana.
– Hutano: Telemedicine, zvinyorwa zvekurapa zvemagetsi, uye kutarisa varwere vari kure zvinoenderana nedata network dzakachengeteka uye dzinoshanda panguva chaiyo.
– Hurumende: Mabasa ehurumende akavakirwa padhijitari (e-government) anowedzera kushanda zvakanaka kwehurumende uye pachena.
- Veruzhinji: Mapurogiramu ekutumira mameseji ipapo ipapo, midhiya yemagariro evanhu, misangano yemavhidhiyo, uye masevhisi ekutepfenyura inongova mimwe mienzaniso yemasevhisi akaberekerwa mukubatanidzwa uku.
Matambudziko Ekubatanidza: Tekinoroji, Mashandiro, uye Mutemo
Pasinei nezvakanakira zvakawanda, kubatana hakunei nematambudziko. Chekutanga kuoma kwehunyanzvi, sezvo network dzemazuva ano dzine zvikamu zvakawanda (kusvika, kugovera, core) uye dzinosanganisira vatengesi vakawanda. Chechipiri mhando yebasa (QoS). Masevhisi akadai sekufona kwevhidhiyo anonyanya kukanganiswa nekunonoka uye jitter, zvichida nzira dzekutarisa traffic, manejimendi yebandwidth, uye kugadzirisa nzira.
Chechitatu, nyaya dzekuchengetedza nekuchengetedzwa kweruzivo rwevanhu dziri kuramba dzichiwedzera kukosha. Kubatanidzwa kwenetiweki kunowedzera nzvimbo yekurwiswa. Kuburitswa kwedata, kurwiswa kweDDoS, uye kunyange kubatwa kwekutaurirana kunogona kuitika pasina kuronga kwakakodzera kwekuchengetedza. Chechina, kune matambudziko emutemo uye ekuenzanisa, kunyanya maererano nekushandiswa kwema frequency spectrum, kutevedzera kutevedzera dziviriro yedata, kubatana kwevashandisi, uye mitemo yekuwana zvivakwa.
Basa reTekinoroji Yemazuva Ano: Cloud, SDN, uye 5G
Munguva pfupi yapfuura, kubatanidzwa kuri kuwedzera nekuda kwetekinoroji dzinoverengeka dzinokosha:
– Cloud Computing: Mapurogiramu nedata zviri kuchinja kuenda kunzvimbo dzedata regore, zvichireva kuti network dzinopa kubatana nekukurumidza uye kwakasimba kune masevhisi egore. Pfungwa dzakadai se edge computing dziri kubudawo kuti dzigadzire data pedyo nevashandisi.
– SDN neNFV (Network Function Virtualization): Mabasa enetwork aimbova akavakirwa pahardware iye zvino anogona kushandiswa sesoftware. Izvi zvinoita kuti network dzigone kuchinjika, dzigone kuvandudzwa zviri nyore, uye dzishande zvakanaka.
– 5G: Tekinoroji ye5G inopa bandwidth yakakwira, latency yakaderera zvakanyanya, uye kugona kubatanidza zvishandiso zvakawanda panguva imwe chete (massive IoT). Kubatanidzwa kwe5G nemanetiweki emakomputa kunovhura mikana yekushanda kwemaindasitiri otomatiki, mota dzakabatana, uye maguta akangwara.
Mienzaniso yeKushandiswa kweKubatanidzwa muhupenyu chaihwo
Muenzaniso unowanzoonekwa ndeyekufona kwevhidhiyo uchishandisa app yemusangano. Kana mushandisi achitaura, izwi nemufananidzo zvinonyorwa mumapaketi edata uye zvinotumirwa kuburikidza neWi-Fi kana network yefoni. Mapaketi aya anopfuura nemarouters, network dzekutakura, internet backbone, uye kunyange maapplication servers ari mugore, asati atumirwa kumudziyo unogamuchira - zvese panguva chaiyo. Pasina kubatanidzwa kwenharembozha nemanetwork emakomputa, maitiro aya aisazogoneka.
Muchikamu chemaindasitiri, mafekitori anoshandisa IoT anovimba nemasensa ari mumichina yekugadzira kuti atumire data kumasevha ekuongorora. Data iri rinozogadziriswa kuti rione zvisina kunaka, kufanotaura kukundikana, uye kugadzirisa mashandisirwo esimba. Zvese izvi zvinoda network yakabatana: wireless access kana wired, IP management, security, uye connection kumapuratifomu emakombiyuta.
Mhedziso
Kubatanidzwa kwenharembozha nemakomputa ndiko kwakakosha pakugadzira nyika yedhijitari yakabatana. Nekubatanidza zvivakwa zvekutumira, zvishandiso zvenetwork, IP protocols, masisitimu ekutonga, uye kuchengetedzeka, masevhisi akasiyana-siyana emazuva ano anogona kuendeswa nekukurumidza uye zvinobudirira. Zvisinei, kubatanidzwa kunounzawo matambudziko akadai sekuoma kwehunyanzvi, zvinodiwa neQoS, njodzi dzekuchengetedza, uye mitemo. Nerutsigiro rwematekinoroji matsva akadai se cloud computing, SDN/NFV, uye 5G, kubatanidzwa uku kucharamba kuchichinja uye kuchiramba kuri kuronga. Kuenderera mberi, kugona kutonga manetwork akabatanidzwa zvakavimbika uye zvakachengeteka kuchava chinhu chakakosha pakukwikwidzana kwesangano, kufambira mberi kwebasa reveruzhinji, uye hupenyu hwenharaunda.
