Ukuze ukwazi ukulayisha inethiwekhi yenkqubo yokujonga ividiyo entsonkothileyo, iswitshi kufuneka ifikelele kwiikhamera ezininzi, kunye nomthamo wedatha wokutshintsha. Umtshintshi kufuneka ube nekhono elizinzile kakhulu lokuguqula idatha ukuhambisa amanani amakhulu kwaye ngokuqhubekayo idatha yeVidiyo. Ke, kufuneka i-ethernet itshintshe i-100M okanye i-1000M?

Idatha ehanjiswe ngexesha leyunithi ngexesha lokudluliselwa kwedatha libizwa ngokuba yikhowudi yekhowudi, ukuba inani ledatha ethunyelwa yikhamera phantsi kokutshintsha lidlula amandla okuthunyelwa kwechweba elithile, kuya kubangela ukuba eli zibuko lilahle inani elikhulu ledatha kwaye bangela iingxaki.

Ngokomzekelo, i-100M itshintshela phambili umthamo wedatha odlula i-100M, eya kubangela ukulahlekelwa kwepakethi enkulu, okubangela ukuba isikrini sikhenkce. Ngoko ke, zingaphi iikhamera ozifunayo ukukhetha i-gigabit switch?

Kukho umgangatho, kuxhomekeke kwisixa sedatha ethunyelwa ngekhamera ye-uplink port: ukuba ubungakanani bedatha ethunyelwe yi-uplink port inkulu kune-70M, khetha i-gigabit port, oko kukuthi, khetha i-gigabit switch okanye i-gigabit uplink switch. .

Kukho ukubala ngokukhawuleza kunye nendlela yokukhetha: ixabiso le-bandwidth = (umsinga ophantsi + umjelo oyintloko) * inani lamajelo * 1.2:

① Ixabiso lobubanzi> 70M, sebenzisa igigabhithi;

②Ixabiso lobubanzi

Umbuzo 1: Inkqubo yokubala umzila wekhowudi icacile, kodwa kutheni kufuneka iphindwe ngo-1.2?

Ngenxa yokuba ngokomgaqo wonxibelelwano womnatha, i-encapsulation yeepakethi zedatha iphinda ilandele i-protocol ye-TCP / IP, kwaye inxalenye yedatha kufuneka iphawulwe ngamasimi eentloko zoluhlu lweprotocol nganye ukuba idluliselwe kakuhle, ngoko ke i-header iya kuba nayo. umlinganiselo othile we-overhead.
I-4M ye-bit rate kunye ne-2M ye-bit yekhamera esihlala sithetha ngayo ibhekisela kubungakanani bedatha yedatha. Ngokomlinganiselo wonxibelelwano lwedatha, i-akhawunti yentloko yentloko malunga ne-20%, ngoko ke ifomula kufuneka iphindwe nge-1.2.

Umbuzo 2: Kutheni i-70M ingekho i-100M?

Ikakhulu ukuqwalasela ukugcwala kwetrafikhi. Uluhlu lwedatha yevidiyo luqulunqwe ngezakhelo ezininzi. Uluhlu lwedatha olubonakala lugudileyo eneneni lunokugqabhuka kwedatha kwangoko. Le meko ifuna utshintsho kwi-buffer kwaye ilungise ukuguquguquka kwedatha.
Utshintsho lugcina-phambili-ivenkile-phambili ezi datha, ngoko kuyacetyiswa ukuba ube nogcino oluthile. Xa uyila inethiwekhi yokutshintsha, kunokubakho ugcino lwe-30% -40%. Kwizibuko le-100M, kucetyiswa ukuba i-traffic yokuthumela ayidluli kwi-70M.

I-Shenzhen JHA Technology Co., Ltd, i-13 yeminyaka engamava uMboneleli weHlabathi weSisombululo soNxibelelwano lweDatha yezoShishino, iNtsebenzo ethembekileyo kunye neNkxaso engagungqiyo.