Dab tsi ua 8 xaim hauv Ethernet cable ua

Vlan (Virtual Cheeb Tsam Chaw Zej Zog) yog kev sib txuas lus thev naus laus zis uas tau sib cais ib lub cev hauv ntau txoj kev tshaj tawm. Txhua tus VLAN yog kev tshaj tawm npe chaw uas cov tswv yim tuaj yeem sib txuas lus ncaj qha, thaum kev sib txuas lus ntawm cov Vlans sib txawv yog txwv. Raws li qhov tshwm sim, cov xov xwm tshaj tawm tau txwv rau ib VLAN.

Zoo siab

Vim li cas VLans xav tau
·Vlan vs. Subnet
·VLAN LOSSIS THIAB VLAN ID
·Hom Vlan Interfaces thiab Vlan Lossis Tuav Cov Cuab Yeej
·Kev Siv Cov Xwm Txheej Vlans
·Teeb meem nrog Vlans nyob rau hauv huab ib puag ncig

Vim li cas Vlans xav tau

Cov tes hluav taws xob ethernet thaum ntxov yog cov ntaub ntawv kev siv thev naus laus zis raws li CSMA / CD (Carrier Sensection ntau / kev sib txuas lus sib xws. Thaum tus naj npawb ntawm cov tswv yim nce, nws tau coj mus sib tsoo loj, tshaj tawm cov cua daj cua dub, qhov tseem ceeb ua rau muaj kev cuam tshuam, thiab txawm tias kev siv hluav taws xob. Txawm hais tias interconnecting lans siv txheej 2 tuaj yeem daws teeb meem kev sib tsoo, nws tseem ua tsis tiav cov lus tshaj tawm thiab txhim kho lub network zoo. Qhov no coj mus rau kev txhim kho Vlan thev naus laus zis, uas muaj feem faib ua las rau hauv ntau txoj kev vam meej vlans; Txhua tus vlan sawv cev rau kev tshaj tawm xov xwm, ua kom sib txuas lus nyob rau hauv VLAN txhais tau tias nws yog ib qho kev sib txuas lus hauv kev sib txuas lus hauv Inter-VLAN thiab tawm suab tshaj tawm hauv VLAN.

Daim duab 1: Lub Luag Haujlwm ntawm Vlans

Yog li, Vlans muaj cov txiaj ntsig zoo hauv qab no:

Kev tshaj tawm xov xwm tshaj tawm: Cov Ntawv tshaj tawm xov xwm tau raug kaw hauv VLAN, txuag bandwidth thiab txhim kho network ua lub peev xwm.
· Kho kom haum rau LAN kev ruaj ntseg: Cov lus sib txawv ntawm cov Vlans sib cais thaum lub sijhawm sib cais, cov ntsiab lus ntawm cov neeg siv tsis tuaj yeem sib txuas lus nrog lwm tus Vlan.
· Muaj kev cuam tshuam loj heev: kev ua txhaum yog txwv rau ib VLAN, yog li teeb meem nyob rau hauv ib vlan tsis cuam tshuam rau kev ua haujlwm ib txwm muaj ntawm lwm tus vlans.
· Flexible Virtual Workgroup Construction: VLANs can divide users into different workgroups, allowing members of the same workgroup to operate without being restricted to a particular physical area, making network construction and maintenance easier and more flexible.

Vlan vs. Subnet

Los ntawm kev ncua ntxiv rau network ib feem ntawm IP chaw nyob rau hauv cov chaw nyob IP, tus nqi qis ntawm tus IP-qib IP yuav tuaj yeem daws tau. Zoo ib yam li Vlans, subnets kuj tuaj yeem cais kev sib txuas lus nruab nrab ntawm cov tswv. Tus tswv nyob rau vlans sib txawv tsis tuaj yeem sib txuas lus ncaj qha, tsuas yog cov tswv hauv cov kev sib txawv tsis tuaj yeem. Txawm li cas los xij, tsis muaj kev sib sau ncaj qha ntawm ob.

Vlan	Lub hauv qab
Qhov txawv	Siv los faib txheej 2 network.
	Tom qab teeb tsa VLAN Interfaces, cov neeg siv hauv cov Vlans sib txuas lus tsuas yog tsim tau.
	Mus txog 4094 vlans tuaj yeem txhais tau; Tus naj npawb ntawm cov khoom siv hauv VLAN tsis txwv.
Tus kwvtij	Tsis pub dhau tib vlan, ib lossis ntau dua subnets tuaj yeem txhais tau.

VLAN LOSSIS THIAB VLAN ID

Txhawm rau pab hloov cov lus sib txawv los ntawm cov Vlans Vlans, ib daim teb pom VLAN cov ntaub ntawv yuav tsum tau ntxiv rau cov lus. IEEE 802.1Q raws txoj cai qhia tias 4-byte vlan tag (paub li vlan lossis vlan lossis vlail cov ntaub ntawv los txheeb xyuas cov ntaub ntawv VLAN.

Lub teb hauv cov ntaub ntawv qhia txog VLAN uas cov ntaub ntawv thav duab; Cov ntaub ntawv thav duab tsuas tuaj yeem kis tau nyob hauv nws cov vlan. Lub chaw vid sawv cev rau VLAN ID, uas tuaj yeem yog ntawm 0 txog 4094. Txhua cov ntaub ntawv nqa mus rau sab hauv thiab cov ntaub ntawv siv tau

Yog li ntawd, los cuam tshuam nrog cov khoom siv no, hloov kev cuam tshuam yuav tsum lees paub cov thav ntawv ethernet ib txwm thiab ntxiv lossis sawb vlan cim npe thaum kis mob. Lub vlan cim ntxiv sib raug rau lub interface lub neej ntawd VLAN (chaw nres nkoj VLAN ID, PVID).

Hom Vlan Interfaces thiab Vlan Lossis Tuav Cov Cuab Yeej

Hauv cov tes hauj lwm tam sim no, cov neeg siv yog tib lub Vlan yuav txuas nrog cov chaw sib txawv, thiab muaj peev xwm muaj ntau yam vlans spepning thoob. Yog tias cov neeg siv Intercommunication yog qhov tsim nyog, cov interfaces ntawm cov pob tes hluav taws xob yuav tsum muaj peev xwm paub thiab xa cov ntaub ntawv ntawm ntau cov vlans ib txhij. Ua raws li cov khoom sib txuas thiab cov thav duab sib txuas ua tiav, muaj ntau yam VLAN cuam tshuam kom haum cov kev sib txuas sib txawv thiab kev sib txuas.

Nrhiav Elv Cable Tshuaj

Tswj Cables

Rau BMS, tsheb npav, muaj, ntsuas cable.

Nyem qhov no

Qauv Cabling System

Network & cov ntaub ntawv, fiber ntau-optic cable, thaj qws, modules, faceplate

Nyem qhov no

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