Setha isabelomali sokubambezeleka kwethrafikhi yesikhathi sangempela ku-VPN
Qala ngesikhathi sokugcina okufanele uhlelo lusifinyelele, bese ukala ukubambezeleka kohlangothi olulodwa kanye nokushintshashintsha ngaphansi kwezimo ezishiwo. Isilinganiso esingenaso umkhawulo wamaphakethe afika sekwephuzile asifakazi lutho.
Izikhalazo ze-VPN zesikhathi sangempela zidinga isikhathi sokugcina ezingahluleka kuso, futhi „ukubambezeleka okuphansi“ akusona leso sikhathi. Nquma ukuthi ingxoxo noma iseshini ekude kufanele kulethani, bese ukala indlela ngokuqhathanisa naleso sidingo ngaphansi kwezimo ezishiwo. Ngaphandle komkhawulo wamaphakethe afika sekwephuzile, yonke imiphumela iyaphikiswana. Ukwabiwa okungezansi kuyisinqumo somklamo, futhi kukhona ukuze ukulinganisa kube nokuthile okuzophendula.
Bhala isikhathi sokugcina ngaphambi kokuthinta ithuluzi lokulinganisa
Isikhathi sokugcina sivela ohlelweni nakubasebenzisi balo, hhayi ekhasini lokumaketha lomhlinzeki. Ucingo lwezwi olubukhoma, iseshini yedeskithophu ekude nokulondolozwa kwasebusuku kukwazi ukubekezelela izikhathi zokulinda ezihluke ngokuphelele, futhi ukwehluleka okubalulekile ngokuvamile kusekugcineni kokusabalalisa, hhayi emgqeni ophakathi. Bhala leyo nombolo kanye nomthwalo womsebenzi engeyayo.
Bese uyaba. Ukuthwebula nokupakisha kudla ingxenye yesabelomali, isixhumanisi sokufinyelela kanye nomhubhe kudla enye ingxenye, ibhafa yokukhipha ukushintshashintsha yomamukeli ibamba amaphakethe ngamabomu, futhi ukucutshungulwa kohlelo kuthatha okusele. Ukubiza lezo zigaba kugcina ukubethelwa komhubhe kusilinganiselo esifanele esikhundleni sokukwenza kube umsolwa ojwayelekile wayo yonke iphakethe elihamba kancane.
Ekugcineni chaza isivumelwano sokulinganisa emigqeni emine: iziphetho nendawo eya kuyo, ukuma kwethrafikhi, izimo ngesikhathi sokusebenza, kanye nomphumela ozowubika. Isampula yangeSonto ethule neyangeLwesibili egcwele ziyaphendula imibuzo ehlukene, ngakho shono ukuthi iyiphi oyiqoqile. Uma ungakwazi ukugcwalisa yonke imigqa emine, ukusebenza akukakalungi ukuqala. Lolo hlu lokuhlola luyinto futhi eyenza imibiko emibili ifaniswe ezinyangeni eziningi kamuva, lapho kungekho muntu okhumbula ukuthi isixhumanisi sasithwele ini enye.
Yaba isabelomali kuzo zonke izigaba
Ithebula liyisiza sokuhlela, hhayi idatha ethwetshuliwe. Gcwalisa umnikazi womugqa ngamunye ngaphambi kokulinganisa kokuqala, ngoba umnikazi nguye omfona lapho leso sigaba sedlula ingxenye yaso.
| Stage | What it contributes | Who owns it |
|---|---|---|
| Capture and packetization | Encoder frame size, aggregation | Application owner |
| Tunnel and transit | Encryption, queueing, path length | Network owner |
| Receiver buffer | Deliberate waiting to absorb variation | Application owner |
| Application processing | Decode and render time | Application owner |
Imigqa emibili ivamise ukumangaza abantu. Ibhafa yomamukeli ayilona iphutha uma yengeza ukubambezeleka, ngoba yenza umsebenzi eyayilungiselelwe wona. Futhi ingxenye yomhubhe ivamise ukuba ncane kunomugqa oyandulelayo, ikakhulukazi kusixhumanisi sokukhuphula esigcwala ngesikhathi sokulayisha.
Uma isigaba singenaye umnikazi, isabelomali siyinganekwane. Nthula oyedwa ngaphambi kokulinganisa, kungenjalo uzosebenzisa umhlangano olandelayo ukuxabana ngokuthi inombolo kabani engeyona.
Kala ukubambezeleka kohlangothi olulodwa ngewashi eqotho
Ukubambezeleka kohlangothi olulodwa yinombolo isikhathi sokugcina esiyikhathazayo, futhi idinga amawashi avumelanisiwe kuzo zombili iziphetho. Isilinganiso sokubambezeleka kohlangothi olulodwa sidinga ukuthi ubike indlela yokuvumelanisa, ukucaca kanye nokuphambuka okulinganisiwe eceleni komphumela. Amahost amabili angavumelanisiwe angaveza inombolo enembile kakhulu yobukhulu obungalungile.
Thwebula amaphakethe angamakhulu ambalwa esikhundleni sesandla esisodwa, futhi urekhode isimo sewashi ngasikhathi sinye:
$ ntpq -p
$ owping -c 300 -i 0.2 10.90.0.1
$ ping -c 200 -i 0.2 10.90.0.1 | tail -n 3Isikhathi sokuhamba nokubuya siyisilinganiso esihlukile, hhayi amanani amabili ohlangothi olulodwa ehlanganisiwe. Ukwehlisa i-RTT ngesigamu kucabanga izindlela ezilinganayo nemigqa elinganayo, futhi umhubhe phezu kwesixhumanisi sokukhuphula seselula wephula zombili lezi zicabango ngokujwayelekile. Bika i-RTT njenge-RTT futhi uyigcine ingaphandle kwesabelomali sohlangothi olulodwa.
Bika ingxenye yokugcina namaphakethe afika sekwephuzile
Fingqa ukusabalalisa: umgqeni ophakathi, amaphesenti angu-95 nangu-99, isimo esibi kakhulu, ukulahleka, kanye nenani lamaphakethe afika ngemuva kwesikhathi esivunyelwe isikhathi sokugcina. Isilinganiso siyinombolo engasebenzi kakhulu kulezo zinombolo emthwalweni wesikhathi sangempela, ngoba isilinganiso esibushelelezi singafihla ingxenye yokugcina eyonakalisa ucingo lwesithathu ngalunye.
Ukushintshashintsha kokubambezeleka kungena ngqo kubhafa yomamukeli. Ibhafa eningi ifihla ukushintshashintsha futhi yengeza ukulinda, ngakho umfudlana ungabonakala uzinzile kuyilapho weqa isikhathi sawo sokugcina. Khetha indlela yokubala yokushintshashintsha, shono isikhathi osikalele, futhi uyigcine ifana phakathi kokusebenza.
Phinda ukusebenza ngethrafikhi enqamulanayo emelekayo. Indlela efinyelela isabelomali uma ingenalutho futhi esihlulekayo ngesikhathi sewindi lokulondoloza isitshele okuthile okuwusizo mayelana nokuhlela, okungeke kudalulwe yisilinganiso esisodwa esithule. Rekhoda izimo eceleni komphumela, ngoba uma kungenjalo unjiniyela olandelayo uzoqhathanisa amasampula amabili angakaze afaniswe.
Yamukela umklamo uma ingxenye yokugcina ekaliwe ingena kwisabelomali ngaphansi komthwalo womsebenzi owusebenzayo ngempela, futhi uwunqabe ngokusho isigaba esedlule emibikweni.