Maindasitiri ekuchinja anonzi zvakare maindasitiri eEthernet switch, ari Ethernet switch midziyo inoshandiswa mumunda wekutonga kwemaindasitiri, nekuda kweiyo yakagamuchirwa network chiyero, kuvhurika kwayo, kushandiswa kwakakura, mutengo wakaderera, uye pachena uye yakabatana TCP/IP protocol, Ethernet yave. chiyero chikuru chekukurukurirana munharaunda yekutonga kwemaindasitiri. Maindasitiri anochinja ane carrier-class performance maitiro uye anogona kumira nehutsinye hwekushanda nharaunda. Akapfuma chigadzirwa akateedzana uye inochinjika chiteshi gadziriso inogona kusangana nezvinodiwa zveakasiyana maindasitiri minda. Chigadzirwa chinotora dhizaini yakakura yekushisa, iyo yekudzivirira haina kuderera pane IP30, uye inotsigira yakajairwa uye yakavanzika mhete network redundancy protocol. 4G routers anoshandiswa zvakanyanya mumaindasitiri akadai semari, zvekufambisa, kutarisa, kuchengetedza mvura, kuchengetedza kwezvakatipoteredza, simba remagetsi, masevhisi eposvo, meteorology, mobile Internet yezvinhu, uye telecom Internet yezvinhu. Saka, ndeupi misiyano pakati pemaindasitiri switch uye maindasitiri 4G routers? Ngatitarisei pamwe chete!

Kuchinja kwemaindasitiri kwakasiyana kubva kumaindasitiri 4G routers mune anotevera mapoinzi:

(1) Matanho ekushanda akasiyana

Iyo yekutanga maindasitiri switch yaive ichishanda pane data link layer (layer 2) yeOSI/RM yakavhurika architecture, uye indasitiri 4G router yakatanga kugadzirwa kuti ishande pane network layer yeOSI modhi. Sezvo shanduko yeindasitiri ichishanda pachikamu chechipiri (data link layer) yeOSI, iyo nheyo yekushanda iri nyore. Asi maindasitiri e4G routers anoshanda pachikamu chechitatu (network layer) yeOSI, iyo inogona kuwana mamwe maprotocol ruzivo, uye maindasitiri 4G routers anogona kuita hungwaru hwekutumira sarudzo.

(2) Kuendesa data kunobva pane zvakasiyana zvinhu

Maindasitiri anochinja anoshandisa kero dzemuviri kana kero dzeMAC kuona kero yekwainoenda yekutumira data. Maindasitiri e4G routers anoshandisa nhamba dzeID (kureva IP kero) dzemanetiweki akasiyana kuona kero yekutumira data. Iyo IP kero inoshandiswa musoftware uye inotsanangura network uko mudziyo unowanikwa. Dzimwe nguva aya kero-yechitatu kero anonziwo protocol kero kana network kero. Iyo MAC kero inowanzo vakwa muhardware, yakapihwa netiweki kadhi inogadzira, uye yakasimbiswa muinetiweki kadhi, uye kazhinji haigone kuchinjwa. Iyo IP kero inowanzopihwa otomatiki nenetiweki maneja kana system.

(3) Iyo yechinyakare maindasitiri switch inogona kungopatsanura iyo dhizaini yekupokana, kwete iyo nhepfenyuro dhizaini; nepo iyo indasitiri 4G router inogona kugovera iyo nhepfenyuro domain. Zvikamu zvenetiweki zvakabatana neshanduko yeindasitiri zvichiri zvenzvimbo imwechete yekutepfenyura, uye kutepfenyura data mapaketi anozofambiswa pazvikamu zvese zvetiweki zvakabatana neshanduko yeindasitiri, izvo zvinogona kutungamira kutsigiro yekutaurirana uye kusagadzikana kwekuchengetedza mune dzimwe nguva. Zvikamu zvenetiweki zvakabatana neindasitiri 4G router zvichapihwa kune akasiyana nhepfenyuro dhizaini, uye nhepfenyuro yedata haizopfuura nemuindasitiri 4G router.

Kunyangwe iwo maindasitiri anochinja pamusoro pechitatu layer ane mabasa eVLAN, iyo nhepfenyuro inogona zvakare kupatsanurwa, asi kutaurirana pakati peiyo sub-yekutepfenyura domains haigone kutaurwa, uye kutaurirana pakati pavo kuchiri kuda indasitiri ye4G router.

(4) Iyo indasitiri 4G router inopa sevhisi yefirewall. Iyo inongoendesa mberi data packet ane chaiwo kero, uye haifambisi data packets isingatsigire routing maprotocol uye kuendesa data pakiti pane inotarirwa network, iyo inogona kudzivirira kuparadzira madutu.