AccessLayer uaSpoj niam

Feem ntau, ib feem ntawm lub network uas txuas ncaj qha rau cov neeg siv lossis nkag mus rau lub network yog hu ua txheej txheej nkag, thiab ib feem ntawm txheej txheej nkag thiab txheej txheej tseem ceeb yog hu ua txheej txheej txheej lossis txheej txheej txheej.Cov keyboards nkag tau feem ntau yog siv los txuas ncaj qha rau cov khoos phis tawj, thiab cov keyboards sib sau ua ke feem ntau yog siv los ntawm cov tsev.Convergence yog sib npaug rau qhov chaw nres tsheb hauv zos lossis tseem ceeb, thiab cov tub ntxhais tseem ceeb sib npaug rau kev tawm lossis tag nrho kev sib sau.Lub hom phiaj ntawm cov ntsiab lus tseem ceeb ntawm cov txheej txheej aggregation yog txhawm rau txo lub nra ntawm cov tub ntxhais, sib pauv cov ntaub ntawv hauv zos hloov tsheb mus rau hauv lub zos aggregation hloov, txo cov kev ua haujlwm ntawm cov tub ntxhais txheej, thiab ua rau cov tub ntxhais txheej tsuas yog txheej txheem cov ntaub ntawv sib pauv sab nraud. cheeb tsam hauv zos.

Aggregation txheej hloov

Lub aggregation txheej hloov yog lub aggregation point ntawm ntau nkag mus rau txheej keyboards.Nws txoj haujlwm yog txhawm rau sib koom ua ke tawm ntawm qhov nkag nkag, thiab nws kuj ua haujlwm xa mus thiab routing.Nws yuav tsum muaj peev xwm tswj tau tag nrho cov tsheb khiav los ntawm kev nkag mus rau txheej txheej thiab muab uplinks rau cov txheej txheem tseem ceeb, yog li cov txheej txheem sib sau ua ke yuav tsum muaj kev xa mus siab dua piv rau cov txheej txheem nkag mus, uas feem ntau yog ib qhotxheej 3 hloov.