SVC yog dab tsi hauv kev sib txuas lus?
SVC yog dab tsi hauv kev sib txuas lus?

Video: SVC yog dab tsi hauv kev sib txuas lus?

Video: SVC yog dab tsi hauv kev sib txuas lus?
Video: Koj Txoj Kev Sib Txuas Lus: Lub Cev Tsis Taus – California Connect 2024, Kaum ib hlis
Anonim

Ib tug switched virtual circuit ( SVC ) yog ib hom kab hluav taws xob virtual hauv kev sib txuas lus thiab khoos phis tawj tes hauj lwm uas yog siv los tsim kev sib txuas ib ntus ntawm ob qhov sib txawv network nodes kom txog thaum ua tiav cov ntaub ntawv hloov chaw, tom qab ntawd qhov kev sib txuas raug txiav.

Ib yam li ntawd, nws tau nug, SVC thiab PVC yog dab tsi?

PVC thiab SVC yog ntau hom virtual circuits. “ PVC ” stands rau “Permanent Virtual Circuit” thiab “ SVC ” stands rau “Switched Virtual Circuit.” Ob leeg PVC thiab SVC ua lub luag haujlwm tseem ceeb hauv kev tes hauj lwm xws li Frame Relay thiab X. 25. Lawv kuj tau siv hauv tshuab ATM. Frame Relay network yog cov txheej txheem rau cov ntaub ntawv txuas network.

Tom qab, lo lus nug yog, PVC networking yog dab tsi? Ib tug ruaj khov virtual circuit ( PVC ) yog ib qho kev sib txuas uas tau tsim los mus tas li ntawm ob lossis ntau lub nodes hauv thav duab relay thiab asynchronous hloov hom (ATM) raws li tes hauj lwm . Nws tso cai rau kev tsim kom muaj kev sib txuas lus nyob rau sab saum toj ntawm lub cev kev sib txuas ntawm cov nodes uas sib txuas lus nquag lossis tsis tu ncua.

Kuj paub, daim ntawv tag nrho ntawm SVC yog dab tsi?

SVC kuj sawv cev rau tus saib xyuas hu. Hauv lub network, a switched virtual circuit (SVC) yog ib lub voj voog virtual ib ntus uas tau tsim thiab khaws cia rau lub sijhawm ntawm kev sib hloov cov ntaub ntawv. Ib qho kev ruaj ntseg virtual Circuit Court (PVC) yog ib qho kev ua haujlwm tsis tu ncua virtual.

Yuav ua li cas hloov lub voj voog virtual txawv ntawm lub voj voog virtual mus tas li?

Hauv hom Idle, kev sib txuas ntawm DTEs muaj tab sis cov ntaub ntawv hloov pauv tsis tau nce. Tsis zoo li Hloov Virtual Circuit , PVCs tsis raug txiav tawm thaum lub sijhawm tsis ua haujlwm. Raws li hom no virtual circuit kev sib txuas yog ruaj khov , cov ntaub ntawv hloov tsheb tuaj yeem tshwm sim sai li sai tau thaum nws npaj xa mus.

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