Ubungakanani bepakethe yeTCP ephantsi buchaphazela ukusebenza kakubi
Unyunithi ophezulu wokuthunyelwa (MTU) ubukhulu obukhulu besunithi yedatha enye yokunxibelelwano lwedijithali ezinokudluliselwa phezu kwenethiwekhi. Ubungakanani be-MTU yipropati ehambelanayo yesikhokelo somnatha womzimba kwaye ngokuqhelekileyo ilinganiswe kwi- bytes . I-MTU ye- Ethernet , umzekelo, ngama-1500 bytes. Ezinye iintlobo zethungelwano, ezifana neendandatho zee-token, zinama-MTU amakhulu, kwaye ezinye iinqununu zinama-MTU amancinci, kodwa ixabiso lugqityiweyo kwi-teknoloji nganye.
U-MTU kunye neMaximum TCP Packet Size
Iiprotokthi zenethiwekhi eziphakamileyo ezifana neTCP / IP zinokuqwalaselwa ngobungakanani bepakethe, okuyiyona ipharamitha ezizimeleyo zeMTU engqimbayo apho iTCP / IP isebenza khona. Ngelishwa, ezininzi izixhobo zethungelwano zisebenzisa iimiqathango ngokulandelanayo. Kuzo zombini ii-routers zasekhaya kunye ne-Xbox Live-consoles-consoles console, umzekelo, i-parameter ebizwa ngokuba yi-MTU, eqinisweni, ubukhulu bepakethe ye-TCP kwaye ayikho i-MTU yomzimba.
Kwi-Microsoft Windows, ubungakanani bepakethi yeepakethi ezinjengeTCP zinokusekwa kwiRejista. Ukuba eli xabiso lisetyenziswe kakhulu, imilambo yendlela yokuthutha ixhulwa ibe yinani elikhulu leepakethe ezincinane, ezichaphazela kakhulu ukusebenza. I-Xbox Live, umzekelo, ifuna ukubaluleka kobukhulu bepakethe ukuba ubuncinane ngama-1365 bytes. Ukuba ubukhulu bepakethe yeTCP bubekwe phezulu kakhulu, bugqitha i-MTU yomzimba kwaye buhlaziye ukusebenza ngokufuna ukuba iipakethi nganye ihlulwe ibe yincinci-inkqubo iyaziwa njengokwahlukana. Iikhompyutha zeMicrosoft Windows zingagqibekanga kumlinganiselo wepakethi wee-1500 bytes zokuxhumela kwi-broadband kunye nee-576 bytes zokudibanisa.
Iingxaki ze-MTU-Related
Kule ngqungquthela, ukunciphisa ubukhulu bepakethe yeTCP ngu 64K (65,525 bytes). Lo mda mkhulu kunokuba uya kusebenzisa ngenxa yokuba izithintelo zokuhambisa ziba nobukhulu obuphantsi. I-MTU yee-1500 bytes i-Ethernet iphakamisa ubukhulu beepakethe ezihamba nayo. Ukuthumela ipakethi ephezulu kunefowuni enkulu yokuthumela i-Ethernet ibizwa ngokuba yi-jabbering. IJabber ingabonwa kwaye ikhuselwe. Ukuba ungagxininiswa, ukugxeka kungaphazamisa inethiwekhi. Ngokuqhelekileyo, i-jabber ifunyenwe ngama-hubs aphindaphindiweyo okanye utshintshi olwenzelwe ukwenza njalo. Indlela elula yokukhusela i-jabber kukubeka ubungakanani obukhulu bepakethe yeTCP kungekho ngaphezu kwe-1500 bytes.
Iingxaki zengqesho zenzeke nokuba i-TCP yokuhanjiswa kweyona ndlela ephezulu kwi- router yasekhaya ibhekene neendlela ezibhekiselwe kuzo.