Zenza ntoni iingcingo ezisi-8 kwintambo ye-Ethernet?

I-VLAN (i-Virtual Local Area Network) iteknoloji yonxibelelwano eyahlula ngengqiqo i-LAN ebonakalayo kwiindawo ezininzi zokusasaza. I-VLAN nganye yi-domain yosasazo apho ababuki zindwendwe banokunxibelelana ngokuthe ngqo, ngelixa unxibelelwano phakathi kweeVLAN ezahlukeneyo luthintelwe. Ngenxa yoko, imiyalezo yosasazo ikhawulelwe kwiVLAN enye.

Umxholo

· Kutheni iiVLAN zifuneka
·VLAN vs. Subnet
·Ithegi yeVLAN kunye neVLAN ID
·Iindidi ze-VLAN Interfaces kunye neVLAN Tag Handling Mechanisms
·Ukusetyenziswa kweemeko zeVLAN
·Imiba ene-VLANs kwi-Cloud Environments

Kutheni iiVLAN zifuneka

Uthungelwano lwangaphambili lwe-Ethernet lwaluyitekhnoloji yedatha yedatha esekelwe kwi-CSMA / CD (i-Carrier Sense Multiple Access / Conlision Detection) eyayisebenzisa iindlela zokunxibelelana okwabelwana ngazo. Xa inani leenginginya lisanda, likhokelele kungquzulwano olukhulu, izaqhwithi zokusasaza, ukuthotywa komgangatho wokusebenza okubalulekileyo, kunye nokucinywa kwenethiwekhi. Nangona ukudibanisa iiLAN usebenzisa izixhobo zeLayer 2 kunokusombulula imiba yongquzulwano, isahlulekile ukwahlula imiyalezo yosasazo kunye nokuphucula umgangatho wothungelwano. Oku kwakhokelela kuphuhliso lweteknoloji yeVLAN, eyahlulahlula i-LAN kwiiVLAN ezininzi ezinengqiqo; I-VLAN nganye imele i-domain yosasazo, eyenza unxibelelwano ngaphakathi kweVLAN njengokungathi i-LAN ngelixa ikhusela unxibelelwano phakathi kwe-VLAN kunye nokuvala imiyalezo yokusasazwa ngaphakathi kweVLAN.

Umfanekiso 1: Indima yeeVLAN

Ke, iiVLAN zineenzuzo ezilandelayo:

· Ukunciphisa imimandla yoSasazo: Imimandla yosasazo ivalelwe ngaphakathi kweVLAN, igcina i-bandwidth kunye nokuphucula ukusetyenzwa kwenethiwekhi.
· Ukuphucula uKhuseleko lwe-LAN: Imiyalezo evela kwii-VLAN ezahlukeneyo ibekwe yodwa ngexesha lokuhanjiswa, oku kuthetha ukuba abasebenzisi ngaphakathi kweVLAN enye abanakunxibelelana ngokuthe ngqo nabasebenzisi kwenye iVLAN.
· Ukomelela kweNethiwekhi eyongeziweyo: Iimpazamo zikhawulelwe kwiVLAN enye, ngoko ke imiba ngaphakathi kweVLAN enye ayichaphazeli ukusebenza okuqhelekileyo kwezinye iiVLAN.
· I-Flexible Virtual Workgroup Construction: Ii-VLAN zinokwahlula abasebenzisi kumaqela okusebenza ahlukeneyo, ukuvumela amalungu eqela elinye ukuba asebenze ngaphandle kokuthintelwa kwindawo ethile ebonakalayo, ukwenza ukwakhiwa kwenethiwekhi kunye nokugcinwa kube lula kwaye kube bhetyebhetye.

VLAN vs. Subnet

Ngokwahlula ngokuqhubekayo inxalenye yenethiwekhi yeedilesi ze-IP kwii-subnets ezininzi, izinga eliphantsi lokusetyenziswa kwendawo yedilesi ye-IP kunye nokuqina kweedilesi ze-IP zamanqanaba amabini kunokuqwalaselwa. Ngokufana neeVLAN, ii-subnets zinokukwahlula unxibelelwano phakathi kwababuki zindwendwe. Iinginginya zeeVLAN ezahlukeneyo azikwazi ukunxibelelana ngokuthe ngqo, njengoko iinginginya kwii-subnets ezahlukeneyo zingenakho. Nangona kunjalo, akukho mbalelwano ngqo phakathi kwezi zimbini.

VLAN	Umnatha ongaphantsi
Umahluko	Isetyenziselwa ukwahlula iLayer 2 networks.
	Emva kokuqwalasela ujongano lweVLAN, abasebenzisi kwiiVLAN ezahlukeneyo banokunxibelelana kuphela ukuba umzila usekiwe.
	Ukuya kuthi ga kwi-4094 VLANs inokuchazwa; inani lezixhobo ngaphakathi kweVLAN alikhawulelwanga.
Ubudlelwane	Ngaphakathi kweVLAN enye, isubnet enye okanye ngaphezulu ingachazwa.

Ithegi yeVLAN kunye neVLAN ID

Ukuvumela iiswitshi ukwahlula imiyalezo evela kwiiVLAN ezahlukeneyo, indawo echonga ulwazi lweVLAN kufuneka yongezwe kwimiyalezo. I-IEEE 802.1Q protocol ichaza ukuba ithegi ye-VLAN ye-4-byte (eyaziwa ngokuba yi-VLAN Tag) yongezwa kwiifreyimu zedatha ye-Ethernet ukuchonga ulwazi lwe-VLAN.

Indawo ye-VID kwisakhelo sedatha ichonga iVLAN apho isakhelo sedatha singowayo; isakhelo sedatha sinokugqithiselwa kuphela ngaphakathi kweVLAN echongiweyo. Intsimi ye-VID imele i-ID ye-VLAN, enokuthi isuse kwi-0 ukuya kwi-4095. Ekubeni i-0 kunye ne-4095 igcinwe yi-protocol, uluhlu oluvumelekileyo lwee-ID ze-VLAN luyi-1 ukuya ku-4094. Zonke izakhelo zedatha ezicutshungulwe ngaphakathi ngotshintshi zithwala iithegi ze-VLAN, ngelixa ezinye izixhobo (ezifana nemikhosi yomsebenzisi kunye neeseva) zixhunywe kwii-tags ze-Ethernet kuphela zithumela kwaye zifumana isakhelo se-Ethernet kuphela.

Ke ngoko, ukusebenzisana nezi zixhobo, utshintshiselwano lwe-interfaces kufuneka lwamkele izakhelo ze-Ethernet zendabuko kwaye zongeze okanye zihlube iithegi ze-VLAN ngexesha lokuhanjiswa. Ithegi yeVLAN eyongeziweyo ihambelana neVLAN yojongano olungagqibekanga (Port Default VLAN ID, PVID).

Iindidi ze-VLAN Interfaces kunye neVLAN Tag Handling Mechanisms

Kuthungelwano lwangoku, abasebenzisi beVLAN enye banokuqhagamshelwa kwiiswitshi ezahlukeneyo, kwaye kunokubakho iiVLAN ezininzi ezijikeleze iiswitshi. Ukuba unxibelelwano lomsebenzisi luyimfuneko, ujongano phakathi kokutshintsha kufuneka lukwazi ukuqaphela kunye nokuthumela izakhelo zedatha ukusuka kwiiVLAN ezininzi ngaxeshanye. Ngokuxhomekeke kwizinto ezidityanisiweyo kunye nendlela iifreyimu ezicutshungulwa ngayo, kukho iintlobo ezahlukeneyo zojongano lweVLAN ukulungiselela unxibelelwano oluhlukeneyo kunye nothungelwano.

Fumana isisombululo seCable yeELV

Iintambo zokulawula

Ye-BMS, BUS, Industrial, Instrumentation Cable.

Cofa apha

Inkqubo yeCabling eyakhiweyo

Inethiwekhi kunye neDatha, iFiber-Optic Cable, iPatch Cord, iiModyuli, iFaceplate

Cofa apha

Imiboniso ka-2024 kunye noPhononongo lweMisitho

Ixesha lokuposa: Nov-27-2024

[AipuWaton] Ukuqonda imfuneko yeeVLANs

Umxholo

Kutheni iiVLAN zifuneka

Umfanekiso 1: Indima yeeVLAN

VLAN vs. Subnet

Ithegi yeVLAN kunye neVLAN ID

Iindidi ze-VLAN Interfaces kunye neVLAN Tag Handling Mechanisms

Iintambo zokulawula

Inkqubo yeCabling eyakhiweyo

Epreli.16th-18th, 2024 Middle-East-Energy eDubai

Epreli.16-18th, 2024 Securika eMoscow

May.9th, 2024 IIMVELISO EZINTSHA KUNYE NETEKNOLOJI ZIQALISA UMNYATHO eShanghai

Oct.22nd-25th, 2024 UKHUSELEKO CHINA e Beijing

Nov.19-20, 2024 IHLABATHI ELIQHELEKILEYO KSA