Yuav ua li cas cov neeg siv khoom xav kom peb ntsuas qhov kev ua tau zoo ntawm lub network, thiab peb tuaj yeem ntsuas nws los ntawm plaub yam no.
1. Bandwidth:
Bandwidth yog txhais nyob rau hauv Baidu Encyclopedia: "cov ntaub ntawv siab tshaj plaws" uas tuaj yeem dhau los ntawm ib qho chaw hauv lub network mus rau lwm qhov taw tes rau ib chav tsev ntawm lub sijhawm.
Lub bandwidth ntawm lub computer network yog cov ntaub ntawv siab tshaj plaws uas lub network tuaj yeem dhau mus, uas yog pes tsawg tus me ntsis ib ob (cov chav tsev feem ntau yog bps (ntsis ib ob)).
Yooj yim muab: bandwidth tuaj yeem muab piv rau txoj kev loj, qhia txog cov tsheb uas tuaj yeem hla ib chav tsev ntawm lub sijhawm;
2. Bandwidth sawv cev:
Bandwidth feem ntau yog qhia raws li bps, qhia ntau npaum li cas ib ob;
"Bits ib ob" feem ntau raug tshem tawm thaum piav txog bandwidth. Piv txwv li, bandwidth yog 100M, uas yog 100Mbps, qhov twg Mbps yog hais txog megabits / s.
Tab sis chav tsev ntawm qhov ceev peb feem ntau rub tawm software yog Byte / s (byte / thib ob). Qhov no suav nrog kev hloov pauv ntawm Byte thiab me ntsis. Txhua 0 lossis 1 nyob rau hauv binary naj npawb system yog me ntsis, thiab me ntsis yog qhov tsawg tshaj plaws chav tsev ntawm cov ntaub ntawv khaws cia, ntawm 8 cov khoom hu ua byte.
Yog li ntawd, thaum peb lis broadband, 100M bandwidth sawv cev rau 100Mbps, theoretical network download ceev tsuas yog 12.5M Bps, tiag tiag tej zaum yuav tsawg dua 10MBps, qhov no yog vim hais tias ntawm cov neeg siv computer kev ua tau zoo, network khoom zoo, kev pab cuam, network ncov, network. kev pab cuam muaj peev xwm, kab lwj, teeb liab attenuation, qhov tseeb network ceev tsis tau mus txog qhov theoretical ceev.
2. Lub sij hawm ncua:
Yooj yim muab, ncua yog hais txog lub sijhawm xav tau rau cov lus mus ntawm ib kawg ntawm lub network mus rau lwm qhov;
Los ntawm cov txiaj ntsig ping, koj tuaj yeem pom tias lub sijhawm ncua sijhawm yog 12ms, uas yog hais txog ICMP cov lus los ntawm kuv lub khoos phis tawj mus rau Baidu tus neeg rau zaub mov yuav tsum ncua sij hawm mus ncig yog 12ms;
(Ping yog hais txog lub sijhawm rov qab thiab rov qab thaum lub pob ntawv xa los ntawm tus neeg siv lub cuab yeej mus rau qhov ntsuas qhov nrawm, thiab tom qab ntawd rov qab mus rau tus neeg siv lub cuab yeej tam sim ntawd.
Network ncua muaj plaub ntu: kev ua haujlwm qeeb, ncua sijhawm ncua sijhawm, kev sib kis qeeb thiab kev nthuav tawm qeeb. Hauv kev xyaum, peb feem ntau xav txog kev ncua kev sib kis thiab kev sib kis qeeb.
3. Cog
: network jitter hais txog lub sij hawm sib txawv ntawm qhov siab tshaj plaws ncua sij hawm thiab qhov tsawg kawg nkaus ncua. Piv txwv li, qhov siab tshaj plaws ncua sij hawm thaum koj mus ntsib lub vev xaib yog 10ms, thiab qhov qeeb qeeb yog 5ms, ces lub network jitter yog 5ms; jitter = siab tshaj ncua-tsawg kawg, co = siab tshaj ncua-tsawg kawg
co tuaj yeem siv los ntsuas qhov kev ruaj ntseg ntawm lub network, qhov me dua qhov jitter, qhov ruaj khov dua lub network;
Tshwj xeeb tshaj yog thaum peb ua si, peb xav tau lub network kom muaj kev ruaj ntseg siab, txwv tsis pub nws yuav cuam tshuam rau kev ua si.
Hais txog qhov ua rau lub network jitter: yog tias lub network congestion tshwm sim, queuing ncua yuav cuam tshuam rau qhov kawg-rau-kawg ncua, uas yuav ua rau ncua sij hawm dheev loj thiab me los ntawm router A mus rau router B, ua rau lub network jitter;
4.Packet poob
: Yooj yim muab, pob ntawv poob txhais tau hais tias cov ntaub ntawv ntawm ib lossis ntau cov ntaub ntawv pob ntawv tsis tuaj yeem ncav cuag qhov chaw los ntawm lub network. Yog tias tus neeg txais pom tias cov ntaub ntawv ploj lawm, nws yuav xa ib daim ntawv thov mus rau tus neeg xa ntawv raws li tus naj npawb ntawm cov kab ke kom ua cov pob ntawv poob thiab rov xa rov qab.
Muaj ntau ntau yam vim li cas cov pob ntawv poob, feem ntau yuav yog lub network congestion, cov ntaub ntawv kev khiav tsheb loj heev, cov khoom siv network tsis tuaj yeem ua rau qee cov ntaub ntawv pob khoom yuav ploj.
Cov pob ntawv poob tus nqi yog qhov piv ntawm cov pob ntawv poob hauv qhov kev xeem rau cov pob ntawv xa mus. Piv txwv li, yog tias koj xa 100 pob ntawv thiab poob ib pob ntawv, tus nqi poob yog 1%.
Post lub sij hawm: Oct-28-2022