Moxa Technologies user manual Sample Applications of VLANs using Moxa EDS-726, Hub

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EDS-726 Series User’s Manual

Featured Functions

The IEEE Std 802.1Q-1998 defines how VLANs operate within an open packet-switched network. An 802.1Q compliant packet carries additional information that allows a switch to determine which VLAN the port belongs to. If a frame is carrying the additional information, it is known as a tagged frame.

To carry multiple VLANs across a single physical (backbone, trunk) link, each packet must be tagged with a VLAN identifier so that the switches can identify which packets belong in which VLAN. To communicate between VLANs, a router must be used.

MOXA EDS-726 supports two types of VLAN port settings:

yAccess Port: The port connects to a single device that is not tagged. The user must define the default port PVID that assigns which VLAN the device belongs to. Once the ingress packet of this Access Port egresses to another Trunk Port (the port needs all packets to carry tag information), EDS-726 will insert this PVID into this packet to help the next 802.1Q VLAN switch recognize it.

yTrunk Port: The port connects to a LAN that consists of untagged devices/tagged devices and/or switches and hubs. In general, the traffic of the Trunk Port must have a Tag. Users can also assign PVID to a Trunk Port. The untagged packet on the Trunk Port will be assigned the port default PVID as its VID.

The following section illustrates how to use these ports to set up different applications.

Sample Applications of VLANs using MOXA EDS-726

Device A

VLAN 5 Untagged Device

Port 1 (Access Port

PVID 5)

 

Port 7 (Access Port

Device I

 

PVID 4)

VLAN 4 Untagged

Switch A

Switch B

Device

Port 3 (Trunk Port, PVID 1)

Port 5 (Access Port

 

 

 

 

PVID 3)

Device H

 

 

VLAN 3 Untagged

Port 2 (Trunk Port PVID 2,

 

Device

 

 

Fixed VLAN (Tagged)=3,4)

 

 

HUB

Port 4 (Access

Port 6 (Access Port PVID 5)

Port PVID 2)

 

Device F

VLAN 2 Untagged

Device G

 

Device

VLAN 5 Untagged Device

Device E

VLAN 4 Tagged Device, VID 4

Device B

Device C

Device D

VLAN 2 Untagged

VLAN 3 Tagged Device, VID 3

Device

VLAN 2 Untagged

 

 

Device

 

In this application,

yPort 1 connects a single untagged device and assigns it to VLAN 5; it should be configured as “Access Port” with PVID 5.

yPort 2 connects a LAN with two untagged devices belonging to VLAN 2. One tagged device with VID 3 and one tagged device with VID 4. It should be configured as “Trunk Port” with PVID 2 for untagged device and Fixed VLAN (Tagged) with 3 and 4 for tagged device. Since each port can only have one unique PVID, all untagged devices on the same port can only belong to the same VLAN.

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Contents Moxa EtherDevice Switch EDS-726 Series User’s Manual First Edition, JulyCopyright Notice TrademarksDisclaimer Table of Contents Chapter EDS Configurator GUI Introduction Overview Package ChecklistFeatures Industrial Networking CapabilityUseful Utility and Remote Configuration Recommended Software and AccessoriesGetting Started RS-232 Console Configuration 115200, None, 8, 1, VT100 Connection CautionEDS-726 Series User’s Manual Key Function Configuration by Telnet Console Configuration by Web Browser EDS-726 Series User’s Manual Disabling Telnet and Browser Access Featured Functions Configuring Basic Settings System IdentificationSwitch Location PasswordSwitch Name Switch DescriptionPassword AccountAny host can access the EDS-726 Accessible IPAny host on a specific subnetwork can access the EDS-726 Allowable Hosts Input formatDescription EnablePort NameFDX Flow Control NetworkPort Transmission Speed Port TypeSwitch Subnet Mask Auto IP ConfigurationSwitch IP Address Default GatewayCurrent Date TimeCurrent Time System Up TimeSystem File Update-By Remote Tftp System File Update-By Local Import/Export Using Port Trunking System File Update-By CF CardFactory Default Port Trunking Concept Configuring Port Trunking Trunk Type Setting DescriptionTrunk Group Maximum of 4 trunk groups Member Ports/Available PortsConfiguring Snmp SnmpV1, V2c Read Community Snmp Read/Write SettingsSnmp Versions V1, V2c Write/Read CommunityTrap Settings Trap Server IP/NamePrivate MIB information Using Communication RedundancySwitch Object ID Gigabit Ethernet Redundant Ring Capability 300 msInitial Setup Turbo Ring ConceptWhen the number of EDS-726 units in the Turbo Ring is even Ring Coupling Configuring Turbo Ring STP/RSTP Concept What is STP? How STP Works STP RequirementsPort Speed Path Cost 802.1D Edition 802.1w-2001 Differences between Rstp and STP STP ConfigurationSTP Reconfiguration STP CalculationUsing STP on a Network with Multiple VLANs STP ExampleConfiguring STP/RSTP Protocol of Redundancy Forwarding DelayRoot/Not Root Bridge priorityPort Priority Configuration Limits of RSTP/STPEnable STP per Port Port CostTraffic Prioritization Concept Using Traffic PrioritizationWhat is Traffic Prioritization? How Traffic Prioritization WorksDifferentiated Services DiffServ Traffic Marking Ieee 802.1p Priority Level Ieee 802.1D Traffic TypeTraffic Prioritization Configuring Traffic Prioritization QoS ClassificationTraffic Queues Inspect TOS Default Port PriorityQueuing Mechanism Inspect COSSetting Description Factory CoS MappingTOS/DiffServ Mapping Using Virtual LAN What is a VLAN?Virtual LAN Vlan Concept Managing a Vlan VLANs and Moxa EtherDevice SwitchBenefits of VLANs Communication Between VLANsSample Applications of VLANs using Moxa EDS-726 HUBConfiguring 802.1Q Vlan Vlan Port SettingsPort Fixed Vlan List Tagged Management Vlan IDPort Pvid Port Forbidden Vlan ListConcept of Multicast Filtering Using Multicast FilteringWhat is an IP Multicast? Benefits of MulticastMulticast Filtering Network without multicast filteringQuery Mode Multicast Filtering and Moxa EtherDevice SwitchIgmp Internet Group Management Protocol Snooping Mode Igmp Multicast FilteringStatic Multicast MAC Configuring Igmp SnoopingIgmp Snooping Settings Enabling Multicast FilteringQuerier Igmp SnoopingStatic Multicast Router Port Igmp TableNone Add Static Multicast MACAdd New Static Multicast Address to the List Join PortGmrp enable Setting Description Factory Default Configuring GmrpPort Setting Description Factory Default Port Mode Setting Description Factory DefaultGmrp Table Using Bandwidth ManagementConfiguring Bandwidth Management Broadcast Storm ProtectionIeee Using Port Access ControlTraffic Rate Limiting Settings Static Port LockMessage Exchange Configuring Ieee 802.1XServer Port Database OptionRadius Server Shared Key802.1X Re-Authentication Local User Database Setup802.1X Re-Authentication Local User Database Setup Static Port Lock802.1X Table Using Auto Warning Configuring Email WarningEmail Alarm Events Settings System Event MoxaEtherDeviceSwitch0001@SwitchLocationEvent Types Port EventEmail Settings Configuring Relay Event Types Configuring Relay WarningRelay Alarm Events Settings Activate your settingsRelay Alarm List Override relay alarm settingsConfiguring Line-Swap Fast Recovery Using Line-Swap-Fast-RecoveryUsing Set Device IP Enable Line-Swap-Fast-RecoveryConfiguring Set Device IP Set up the connected devicesOutput data stream Using DiagnosisMirror Port Bi-directionalUsing Monitor Monitor by SwitchPing Using the MAC Address Table Monitor by PortUsing Event Log ALLEDS Configurator GUI Starting EDS Configurator Broadcast SearchUpgrade Firmware Search by IP addressModify IP Address Export Configuration Import Configuration Unlock Server EDS-726 Series User’s Manual MIB II.4 IP Group MIB II.1 System GroupMIB II.2 Interfaces Group MIB II.5 Icmp GroupMIB II.10 Transmission Group MIB II.11 Snmp GroupMIB II.17 dot1dBridge Group Public Traps Private TrapsModular Managed Switch System, EDS-72610G InterfacePower Gigabit Ethernet Interface Module, IM seriesMechanical Fast Ethernet Interface Module, IM series Optical FiberInterface Environmental Regulatory ApprovalsService Information Moxa Internet Services Following services are providedProblem Report Form Serial NumberProduct Return Procedure
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