Namhlanje, i-CF Fiberlink iya kuthetha ngezalathisi ezine eziphambili zokulinganisa ukusebenza kwenethiwekhi: i-bandwidth, ukulibaziseka, i-jitter, kunye nokulahleka kwepakethi.

Ngaba abathengi bafuna ukuba sivavanye njani ukusebenza kwenethiwekhi, kwaye sinokuyivavanya kule miba yomine.

1. Ububanzi:

I-Bandwidth ichazwa kwi-Baidu Encyclopedia: "izinga eliphezulu ledatha" elinokuthi lidlule ukusuka kwelinye iphuzu kuthungelwano ukuya kwelinye iphuzu kwiyunithi yexesha.

I-bandwidth yenethiwekhi yekhompyutheni yizinga eliphezulu ledatha apho inethiwekhi inokudlula khona, oko kukuthi zingaphi iibhithi ngomzuzwana (iyunithi eqhelekileyo yi-bps (bit ngesekhondi)).

Ukubeka ngokulula: i-bandwidth inokuthelekiswa nomgwaqo omkhulu, ebonisa inani lezithuthi ezinokudlula kwiyunithi yexesha;

2. Ukumelwa kobubanzi:

I-Bandwidth idla ngokuchazwa njenge-bps, ebonisa ukuba yimalini na i-bit ngesekhondi;

"Amasuntswana ngomzuzwana" kaninzi ayifakwa xa kuchazwa i-bandwidth. Ngokomzekelo, i-bandwidth yi-100M, eyi-100Mbps ngokwenene, apho i-Mbps ibhekisela kwi-megabits / s.

Kodwa iyunithi yesantya esihlala sikhuphela isoftware yi-Byte/s (byte/second). Oku kubandakanya ukuguqulwa kwe-Byte kunye ne-bit. Nganye u-0 okanye u-1 kwinkqubo yamanani okubini yintwana, kwaye isuntswana yeyona yunithi incinci yokugcina idatha, apho amasuntswana ayi-8 abizwa ngokuba yi-byte.

Ngoko ke, xa siphatha i-broadband, i-100M bandwidth imele i-100Mbps, isantya sokukhuphela inethiwekhi yethiyori yi-12.5M Bps kuphela, eneneni ingaba ngaphantsi kwe-10MBps, oku kungenxa yokusebenza kwekhompyutha yomsebenzisi, umgangatho wezixhobo zenethiwekhi, ukusetyenziswa kobutyebi, incopho yenethiwekhi, inethiwekhi. umthamo wenkonzo, ukubola komgca, ukunciphisa umqondiso, isantya sothungelwano esisiso asikwazi ukufikelela kwisantya sethiyori.

2.Ukulibaziseka kwexesha:

Ukubeka ngokulula, ukulibaziseka kubhekisa kwixesha elifunekayo ukuze umyalezo uhambe ukusuka kwelinye icala lothungelwano ukuya kwelinye;

Ukusuka kwiziphumo ze-ping, unokubona ukuba ukulibaziseka kwexesha yi-12ms, ebhekisa kumyalezo we-ICMP osuka kwikhompyuter yam ukuya kwiseva ye-Baidu efunekayo ukulibaziseka kwexesha lohambo yi-12ms;

(I-Ping ibhekisa kwixesha elingasemva naphambili xa ipakethe ithunyelwa isuka kwisixhobo somsebenzisi ukuya kwindawo yomlinganiselo wesantya, ize ngoko nangoko ibuyiselwe kwisixhobo somsebenzisi. Oko kukuthi, okuqhelekileyo kwaziwa njengolibaziseko lwenethiwekhi, olubalwe kwi-millisecond ms.）

Ukulibaziseka kwenethiwekhi kubandakanya iinxalenye ezine: ukulibaziseka kokucubungula, ukulibaziseka komgca, ukulibaziseka kokuhanjiswa kunye nokulibaziseka kokusasazwa. Ngokwesiqhelo, siqwalasela ikakhulu ukulibaziseka kothumelo kunye nokulibaziseka kothumelo.

3.Vuthulula

: ijita yenethiwekhi ibhekisa kumahluko wexesha phakathi kolibaziseko olukhulu kunye nolibaziseko oluncinane. Ngokomzekelo, ukulibaziseka okukhulu xa u tyelela iwebhusayithi yi-10ms, kwaye ukulibaziseka okuncinci ngu-5ms, ngoko i-jitter yenethiwekhi yi-5ms; ijita = ulibaziseko oluphezulu-ubuncinane bokulibaziseka, ukungcangcazela = ukulibaziseka okukhulu-kubambezeleka okuncinci

i-shake ingasetyenziselwa ukuvavanya ukuzinza kwenethiwekhi, encinci i-jitter, inethiwekhi ezinzileyo;

Ngokukodwa xa sidlala imidlalo, kufuneka inethiwekhi ibe nokuzinza okuphezulu, ngaphandle koko kuya kuchaphazela amava omdlalo.

Malunga nesizathu se-jitter yenethiwekhi: ukuba ukuxinana kwenethiwekhi kwenzeka, ukulibaziseka komgca kuya kuchaphazela ukulibaziseka kokuphela ukuya ekupheleni, oku kunokubangela ukulibaziseka ngokukhawuleza okukhulu kunye nokuncinci ukusuka kwi-router A ukuya kwi-router B, okubangelwa i-jitter yenethiwekhi;

4.Ilahleko yepakethe

: Ukubeka nje, ilahleko yepakethe ithetha ukuba idatha yepakethe enye okanye ngaphezulu ayinakufikelela kwindawo ekuyiwa kuyo ngenethiwekhi. Ukuba umamkeli ufumanisa ukuba idatha ilahlekile, iya kuthumela isicelo kumthumeli ngokwenombolo ye-serial ye-queue ukuqhuba ukulahleka kwepakethi kunye nokuhanjiswa kwakhona.

Zininzi izizathu zokuphulukana neepakethi, ezona zixhaphakileyo zinokuba kukuxinana kwenethiwekhi, ukugcwala kwedatha kukhulu kakhulu, izixhobo zenethiwekhi azikwazi ukuphatha ngokwendalo ezinye iipakethi zedatha ziya kulahleka.

Ixabiso lokulahleka kwepakethi ngumlinganiselo wenani leepakethi ezilahlekileyo kuvavanyo kwiipakethi ezithunyelwe. Umzekelo, ukuba uthumela iipakethe ze-100 kwaye ulahlekelwe yipakethi enye, izinga lokulahlekelwa kwepakethi li-1%.