Los ntawm qhov kev xav ntawm architecture, WiFi routers tuaj yeem muab faib ua thawj tiam ntawm tib - npav ib leeg -CPU qauv WiFi routers, tiam thib ob ntawm ib leeg - npav tus tswv{{3} } qhev CPU qauv WiFi routers, tiam thib peb ntawm ib leeg -bus symmetrical multi-CPU qauv WiFi routers; tiam thib plaub ntawm WiFi routers Multi-bus thiab multi-CPU qauv WiFi routers, thib tsib- tiam sib koom nco qauv WiFi routers, thib rau- tiam neeg hla{{10} }hloov architecture WiFi routers, thiab pawg system{11}}raws li WiFi routers.
Lub router WiFi muaj plaub yam: input ports, output ports, switches, route processors, and other ports.
Qhov chaw nres nkoj nkag yog qhov txuas lub cev thiab qhov chaw nkag ntawm pob ntawv nkag. Cov chaw nres nkoj feem ntau yog muab los ntawm kab ntawv, daim npav kab feem ntau txhawb nqa 4, 8 lossis 16 chaw nres nkoj, thiab ib qho chaw nres nkoj muaj ntau txoj haujlwm. Thawj txoj haujlwm yog ua cov ntaub ntawv txuas txheej encapsulation thiab decapsulation. Qhov thib ob ua haujlwm yog txhawm rau saib qhov chaw nyob ntawm cov pob khoom tuaj hauv lub rooj xa mus los txiav txim qhov chaw nres nkoj lo lus uas peb (hu ua route lookup). Txoj kev tshawb nrhiav tuaj yeem siv tau los ntawm kev siv cov khoom siv dav dav, lossis los ntawm kev kos ib microprocessor ntawm txhua daim npav. . Thib peb, txhawm rau muab QoS (Kev Pabcuam Zoo), qhov chaw nres nkoj faib cov pob ntawv tau txais mus rau ntau qib kev pabcuam ua ntej. Plaub, cov chaw nres nkoj yuav xav tau khiav cov ntaub ntawv txuas- theem raws tu qauv xws li SLIP (Serial Wire Internet Protocol) thiab PPP (Point-rau-Point Protocol) lossis network{{6} }theem raws tu qauv xws li PPTP (Point-rau-Point Tunneling Protocol). Thaum txoj kev tshawb nrhiav tiav lawm, ib qho kev hloov yuav tsum tau siv los xa cov pob ntawv mus rau nws qhov chaw tso zis. Yog hais tias lub router WiFi input -queued, muaj ob peb inputs uas sib koom tib yam hloov. Lub luag haujlwm kawg ntawm qhov chaw nres nkoj tawm tswv yim yog los koom nrog hauv kev txiav txim siab pom zoo ntawm cov peev txheej xws li kev hloov pauv.
Swap keyboards tuaj yeem siv tau los ntawm ntau txoj kev sib txawv. Txog tam sim no, kev siv thev naus laus zis hloov pauv feem ntau yog tsheb npav, crossbar thiab sib koom nco. Cov keyboards yooj yim tshaj plaws siv ib lub tsheb npav los txuas tag nrho cov tswv yim thiab cov chaw nres nkoj. Qhov tsis zoo ntawm kev hloov tsheb npav yog tias lawv lub peev xwm hloov pauv tau txwv los ntawm lub peev xwm ntawm lub npav thiab cov nyiaj siv ua haujlwm ntxiv ntawm kev txiav txim siab rau lub npav sib koom. Crossbars muab ntau txoj hauv kev los ntawm cov keyboards, thiab crossbar nrog NN crosspoints tuaj yeem xav tias muaj 2N tsheb npav. Yog tias tus ntoo khaub lig raug kaw, cov ntaub ntawv ntawm lub tsheb npav nkag tau muaj nyob rau ntawm lub npav tso tawm, txwv tsis pub nws tsis muaj. Qhov kaw thiab qhib ntawm qhov kev sib tshuam yog tswj los ntawm tus teem sijhawm, yog li ntawd, tus teem sijhawm txwv qhov nrawm ntawm qhov hloov pauv tuaj yeem hloov pauv. Hauv kev sib koom nco WiFi routers, cov pob khoom tuaj tau muab khaws cia hauv kev sib koom ua ke, thiab tsuas yog cov taw qhia rau cov pob ntawv sib pauv, uas ua rau kom muaj peev xwm hloov tau, tab sis qhov ceev ntawm kev hloov yog txwv los ntawm lub cim xeeb muaj peev xwm coj ceev. Txawm hais tias lub peev xwm nco tuaj yeem ua ob zaug txhua 18 lub hlis, lub sijhawm nkag mus rau lub cim xeeb txo qis tsuas yog 5 feem pua ntawm ib xyoos, qhov kev txwv ntawm kev sib koom ua ke.
Qhov chaw nres nkoj tso zis khaws cov pob ntawv ua ntej lawv raug xa mus rau qhov tso zis txuas, thiab tuaj yeem siv cov txheej txheem teem caij nyuaj los txhawb cov kev xav tau xws li qhov tseem ceeb. Zoo li cov chaw nres nkoj nkag, cov chaw nres nkoj tso zis yuav tsum txhawb nqa cov ntaub ntawv txuas txheej txheej encapsulation thiab decapsulation, nrog rau ntau cov txheej txheem siab dua - theem.
Lub routing processor suav lub rooj xa mus los siv cov txheej txheem routing thiab khiav cov software uas teeb tsa thiab tswj hwm WiFi router. Nyob rau tib lub sijhawm, nws tseem ua haujlwm rau cov pob ntawv uas nws qhov chaw nyob tsis nyob hauv lub rooj xa khoom ntawm kab ntawv.
Lwm qhov chaw nres nkoj feem ntau xa mus rau qhov chaw nres nkoj tswj. Txij li thaum lub WiFi router nws tus kheej tsis muaj cov tswv yim thiab cov khoom siv davhlau ya nyob twg, tab sis nws yuav tsum tau teeb tsa kom zoo ua ntej nws tuaj yeem siv tau ib txwm, yog li lub router dav dav muaj qhov chaw nres nkoj "Console", uas yog siv los sib txuas lus nrog Txuas lub computer. lossis cov khoom siv davhlau ya nyob twg, thiab teeb tsa lub router WiFi los ntawm cov software tshwj xeeb. Txhua lub routers WiFi tau nruab nrog lub console chaw nres nkoj, uas tso cai rau cov neeg siv lossis cov thawj coj siv lub davhlau ya nyob twg los sib txuas lus nrog WiFi router thiab ua tiav qhov teeb tsa WiFi router. Qhov chaw nres nkoj no muab EIA / TIA-232 asynchronous serial interface rau kev teeb tsa hauv zos ntawm WiFi router (thawj kev teeb tsa yuav tsum tau ua los ntawm console chaw nres nkoj).
Qhov chaw nres nkoj Console txuas ncaj qha mus rau qhov chaw nres nkoj ntawm lub khoos phis tawj siv kev sib txuas tshwj xeeb rau kev teeb tsa, thiab lub davhlau ya nyob twg emulation program (xws li "Hyper Terminal" hauv qab Windows) yog siv los teeb tsa WiFi router hauv zos. Feem ntau ntawm cov console ports ntawm WiFi routers yog RJ-45 chaw nres nkoj.