Hauv kev sib tham, kev nkag siab qhov sib txawv ntawm Txheej 2 thiab Txheej 3 kev hloov pauv yog qhov tseem ceeb rau kev tsim cov txheej txheem zoo. Ob hom keyboards muaj lub luag haujlwm tseem ceeb, tab sis lawv tau siv nyob rau hauv cov xwm txheej sib txawv nyob ntawm qhov xav tau ntawm lub network. Cia peb tshawb nrhiav lawv qhov sib txawv thiab kev siv.
Layer 2 Switching yog dab tsi?
Txheej 2 hloov ua haujlwm ntawm Data Link txheej ntawm OSI qauv. Nws tsom rau kev xa cov ntaub ntawv hauv ib cheeb tsam hauv zos (LAN) los ntawm kev siv MAC chaw nyob los txheeb xyuas cov khoom siv.
Cov yam ntxwv tseem ceeb ntawm Layer 2 switching:
Siv MAC chaw nyob xa cov ntaub ntawv mus rau lub cuab yeej raug nyob hauv LAN.
Txhua yam khoom siv feem ntau raug tso cai sib txuas lus ywj pheej, uas ua haujlwm zoo rau cov tes hauj lwm me tab sis tuaj yeem ua rau muaj kev sib tsoo hauv kev teeb tsa loj.
Kev them nyiaj yug rau Virtual Local Area Networks (VLANs) rau network segmentation, txhim kho kev ua tau zoo thiab kev ruaj ntseg.
Txheej 2 keyboards yog qhov zoo tagnrho rau cov tes hauj lwm me me uas tsis tas yuav muaj peev xwm ua haujlwm siab.
Layer 3 Switching yog dab tsi?
Txheej 3 kev hloov pauv sib txuas cov ntaub ntawv xa mus ntawm txheej 2 hloov nrog lub peev xwm routing ntawm lub network txheej ntawm OSI qauv. Nws siv IP chaw nyob rau kev xa cov ntaub ntawv ntawm cov network sib txawv lossis subnets.
Cov yam ntxwv tseem ceeb ntawm Layer 3 switching:
Kev sib txuas lus ntawm cov tes hauj lwm ywj pheej yog ua tiav los ntawm kev txheeb xyuas qhov chaw nyob IP.
Txhim kho kev ua tau zoo hauv ib puag ncig loj los ntawm kev faib koj lub network kom txo qis kev hloov pauv cov ntaub ntawv tsis tsim nyog.
Cov ntaub ntawv txoj kev tuaj yeem ua kom zoo dua qub los ntawm kev siv cov txheej txheem xws li OSPF, RIP, lossis EIGRP.
Txheej 3 keyboards feem ntau siv nyob rau hauv kev lag luam ib puag ncig uas ntau VLANs lossis subnets yuav tsum cuam tshuam.
Txheej 2 vs. Txheej 3: Qhov txawv ntawm qhov tseem ceeb
Txheej 2 keyboards ua haujlwm ntawm cov ntaub ntawv txuas txheej thiab feem ntau yog siv los xa cov ntaub ntawv hauv ib lub network raws li MAC chaw nyob. Lawv zoo tagnrho rau me me hauv zos tes hauj lwm. Txheej 3 keyboards, ntawm qhov tod tes, ua haujlwm ntawm txheej txheej network thiab siv IP chaw nyob rau kev xa cov ntaub ntawv ntawm cov network sib txawv. Qhov no ua rau lawv qhov kev xaiv zoo tshaj plaws rau qhov loj dua, ntau qhov sib txuas hauv network uas xav tau kev sib txuas lus ntawm subnets lossis VLANs.
Koj yuav tsum xaiv qhov twg?
Yog tias koj lub network yog qhov yooj yim thiab hauv cheeb tsam, Layer 2 hloov muab cov txiaj ntsig zoo thiab ua haujlwm ncaj qha. Rau cov tes hauj lwm loj lossis ib puag ncig uas xav tau kev sib koom ua ke thoob plaws VLANs, Layer 3 hloov yog qhov kev xaiv tsim nyog dua.
Xaiv qhov kev hloov pauv kom ntseeg tau cov ntaub ntawv hloov pauv tsis sib haum thiab npaj koj lub network rau yav tom ntej scalability. Txawm hais tias koj tswj hwm lub lag luam me me lossis kev lag luam loj, kev nkag siab Layer 2 thiab Layer 3 hloov pauv tuaj yeem pab koj txiav txim siab paub.
Ua kom zoo rau kev loj hlob thiab kev sib txuas: xaiv kom zoo!
Post lub sij hawm: Nov-24-2024
