Specifications

4.6 VLAN

AVirtualLAN(VLAN)isa“logical”groupingofnodesforthepurposeoflimitinga

broadcastdomaintospecificmembersofagroupwithoutphysicallygroupingthe

memberstogether.Thatmeans,VLANallowsyoutoisolatenetworktrafficso

thatonlymembersofVLANcouldreceivetrafficfromthesameVLANmembers.

Basically,creatingaVLANfromaswitchisthelogicalequivalentofphysically

reconnectingagroupofnetworkdevicestoanotherLayer2switch,without

actuallydisconnectingthesedevicesfromtheiroriginalswitches.

PMIIndustrialEthernetSwitchsupports802.1QVLAN.802.1QVLANisalso

knownasTag‐BasedVLAN.ThisTag‐BasedVLANallowsVLANtobecreated

acrossdifferentswitches.IEEE802.1Qtag‐basedVLANmakesuseofVLAN

controlinformationstoredinaVLANheaderattachedtoIEEE802.3packet

frames.ThistagcontainsaVLANIdentifier(VID)thatindicateswhichVLANa

framebelongsto.Sinceeachswitchonlyhastocheckaframe’stag,withoutthe

needtodissectthecontentsoftheframe,thisalsosavesalotofcomputing

resourceswithintheswitch.

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VLANConfigurationgroupenablesyoutoAdd/RemoveVLAN,configureport

Ingress/EgressparametersandviewVLANtable.

Followingcommandsareincludedinthisgroup:

4.6.1VLANPortConfiguration

4.6.2VLANConfiguration

4.6.3GVRPConfiguration

4.6.4VLANTable

4.6.5CLICommandsoftheVLAN

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4.6.1 VLANPortConfiguration

VLANPortC onfigurationallowsyoutosetupVLANportparameterstospecific

port.TheseparametersincludePVID,AcceptFrameTypeandIngressFiltering.