Static vs Dynamic Routing
Qhov sib txawv ntawm qhov zoo li qub thiab dynamic routing yog hais txog txoj kev routing nkag nkag mus rau hauv lub system. Routing nyob rau hauv lub computer networking yog hais txog cov txheej txheem ntawm kev xa mus kom zoo ntawm pob ntawv hla lub computer network kom thaum kawg cov pob ntawv mus txog qhov tseeb. Routing yog ob hom tseem ceeb xws li static routing thiab dynamic routing. Nyob rau hauv static routing, tus thawj tswj network manually teev cov routing nkag nyob rau hauv lub routing ntxhuav. Qhov ntawd yog qhov uas nws manually putsentries uas qhia tias txoj kev twg yuav tsum tau ua raws li nyob rau hauv thiaj li yuav tau ib pob ntawv mus txog ib tug tej yam lo lus uas peb. Ntawm qhov tod tes, nyob rau hauv dynamic routing, routing nkag yog pib-tsim siv routing raws tu qauv txiav txim tsis muaj kev cuam tshuam los ntawm tus thawj tswj network. Cov algorithms siv yog complex tab sis rau cov tes hauj lwm tam sim no, uas yog loj heev nyob rau hauv loj thiab cov uas tau hloov ntau zaus, dynamic routing yog tsim nyog.
Dab tsi yog Kev Routing?
Nyob rau hauv static routing, network administrator manually nkag mus rau routing nkag mus rau lub routing rooj ntawm txhua router thiab computer. Txoj kev nkag mus yog ib qho kev nkag uas qhia meej tias lub rooj vag uas lub pob ntawv yuav tsum tau xa mus, kom nws mus txog qhov chaw twg. Ntawm txhua lub router lossis lub khoos phis tawj, lub rooj hu ua routing table muaj nyob uas muaj ntau qhov kev nkag nkag. Rau ib qho yooj yim me me network, nkag mus rau hauv txoj kev zoo li qub rau txhua tus router yuav ua tau tab sis nws dhau los ua qhov nyuaj nrog qhov nce ntawm qhov loj thiab qhov nyuaj ntawm lub network. Tsis tas li ntawd, yog tias muaj kev hloov pauv tshwm sim hauv lub network uas cuam tshuam rau kev sib txuas (piv txwv li, lub router poob qis, lossis ib lub router tshiab ntxiv), cov kev nkag nkag yuav tsum tau hloov pauv. Yog li, nyob rau hauv static routing, kev tswj cov rooj routing yuav tsum tau ua los ntawm tus thawj tswj hwm. Qhov zoo ntawm static routing yog tias tsis muaj kev ua haujlwm ntau. Qhov tsuas yog ua yog ua ib qho kev saib ntawm lub rooj sib tham rau ib qho chaw tshwj xeeb thiab yog li cov khoom siv routing yuav tsum tsis tas yuav muaj cov txheej txheem tsim nyog ua rau lawv pheej yig dua.
Ib qho kev sib tw khiav mus rau yav tom ntej
Dynamic Routing yog dab tsi?
Nyob rau hauv dynamic routing, routing nkag yog pib tsim los ntawm routing algorithms. Li no, tus thawj tswj hwm tsis tas yuav ua ib qho kev hloov kho manually. Routing algorithms yog txoj kev ua lej nyuaj uas cov routers tshaj tawm txog lawv cov kev sib txuas thiab siv cov ntaub ntawv ntawd, txoj hauv kev zoo tshaj plaws suav nrog. Muaj ntau txoj hauv kev nyob ntawm seb qhov kev tshaj tawm thiab kev suav ua li cas. Txuas lub xeev algorithms thiab nrug vector algorithms yog ob txoj kev nto moo. OSPF (Open Shortest Path First) yog ib qho algorithm uas ua raws li qhov txuas lub xeev algorithm thiab RIP (Routing Information Protocol) yog ib qho algorithm uas siv cov vector algorithm nrug. Rau niaj hnub loj tes hauj lwm uas muaj ntau yam kev hloov thaum lub sij hawm ua hauj lwm, dynamic routing yog zoo tagnrho.
Nyob rau hauv dynamic routing, routing tables yog ib ntus hloov tshiab thiab li no, yog muaj kev hloov tau tshwm sim, cov tshiab routing rooj yuav tsim raws li lawv. Lwm qhov zoo dua yog tias nyob rau hauv dynamic routing, nyob ntawm qhov congestion, routing yog yoog. Ntawd yog, yog tias qee txoj hauv kev muaj ntau dhau, cov txheej txheem kev ua haujlwm yuav txiav txim siab lawv thiab cov kev yuav raug zam rau yav tom ntej routing tables. Lub drawback ntawm dynamic routing yog hais tias lub xam yog complex uas nws yuav tsum tau ntau npaum li cas ntawm kev ua. Yog li ntawd, tus nqi ntawm cov khoom siv routing no yuav kim heev.
Qhov txawv ntawm Static Routing thiab Dynamic Routing yog dab tsi?
• Nyob rau hauv static routing, network administrator manually nkag mus rau lub routing ntxhuav. Tab sis nyob rau hauv dynamic routing, network neeg khiav dej num tsis tas yuav nkag mus rau ib qho kev nkag raws li cov kev nkag yog pib generated.
• Nyob rau hauv dynamic routing, routing nkag yog generated siv complex routing algorithms. Nyob rau hauv static routing, tsis muaj xws li algorithms koom.
• Rau txoj kev zoo li qub, qhov kev txiav txim tsuas yog ua ib qho kev saib ntawm lub rooj thiab yog li tsis tas yuav muaj kev ua haujlwm ua cov khoom siv qis dua. Tab sis, dynamic routing algorithms suav nrog ntau ntawm kev suav. Li no, nws yuav tsum tau muaj peev xwm ua tau ntau yam. Raws li qhov tshwm sim, kho vajtse yuav raug nqi.
• Hauv txoj kev zoo li qub, routers tsis tshaj tawm lossis tshaj tawm cov ntaub ntawv hais txog kev txuas mus rau lwm lub routers. Tab sis, nyob rau hauv dynamic routing, cov ntxhuav yog generated siv xws li cov ntaub ntawv tshaj tawm los ntawm routers.
• Nyob rau hauv dynamic routing, routing tables tau hloov kho raws sij hawm thiab yog li rhiab heev rau tej kev hloov hauv lub network. Tab sis, nyob rau hauv static routing, tus thawj tswj network yuav tsum manually ua tej yam kev hloov.
• routing zoo siv tau rau cov tes hauj lwm me. Tab sis, rau cov tes hauj lwm loj, static routing tsis tuaj yeem tswj tau thiab yog li siv dynamic routing.
• Nyob rau hauv txoj kev zoo li qub, yog tias muaj qhov txuas tsis ua haujlwm, kev sib txuas lus yuav raug cuam tshuam txog qhov txuas rov qab los yog tus thawj tswj hwm tau teeb tsa txoj hauv kev hloov pauv. Tab sis, nyob rau hauv dynamic routing, nyob rau hauv xws li ib tug tshwm sim, lub routing rooj yuav hloov kho kom muaj lwm txoj kev.
• routing zoo li qub muaj kev nyab xeeb ntau vim tsis muaj kev tshaj tawm raug xa mus. Tab sis, nyob rau hauv dynamic routing, tshaj tawm thiab tshaj tawm tshwm sim ua rau nws tsis ruaj ntseg.
Summary:
Static vs Dynamic Routing
Nyob hauv kev sib txuas hauv computer, routing yog ib qho tseem ceeb tshaj plaws uas ua kom lub computer network ua haujlwm zoo. Static routing yog cov txheej txheem uas tus thawj coj yuav tsum tau teeb tsa cov kev nkag nkag. Ntawm qhov tod tes, nyob rau hauv dynamic routing, routing tables yog cia li generated siv algorithms hu ua routing algorithms xws li RIP thiab OSPF. Rau cov kev sib txuas loj loj, kev siv static routing yog qhov nyuaj heev thiab yog li ib tus yuav tsum mus rau dynamic routing. Qhov kom zoo dua ntawm dynamic routing yog tias cov rooj routing yuav raug tsim ua ntu zus thiab yog li lawv yuav ua raws li kev hloov pauv hauv lub network. Tab sis qhov tsis zoo yog tias cov kev suav hauv dynamic routing xav tau ntau lub zog ua haujlwm.
