Moxa Technologies EDS-726 Benefits of VLANs, VLANs and Moxa EtherDevice Switch, Managing a Vlan

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EDS-726 Series User’s Manual

Featured Functions

Benefits of VLANs

The main benefit of VLANs is that they provide a network segmentation system that is far more flexible than traditional networks. Using VLANs also provides you with three other benefits:

yVLANs ease the relocation of devices on networks: With traditional networks, network administrators spend much of their time dealing with moves and changes. If users move to a different subnetwork, the addresses of each host must be updated manually. With a VLAN setup, if a host on VLAN Marketing, for example, is moved to a port in another part of the network, and retains its original subnet membership, you only need to specify that the new port is on VLAN Marketing. You do not need to carry out any re-cabling.

yVLANs provide extra security: Devices within each VLAN can only communicate with other devices on the same VLAN. If a device on VLAN Marketing needs to communicate with devices on VLAN Finance, the traffic must pass through a routing device or Layer 3 switch.

yVLANs help control traffic: With traditional networks, congestion can be caused by broadcast traffic that is directed to all network devices, regardless of whether or not they need it. VLANs increase the efficiency of your network because each VLAN can be set up to contain only those devices that need to communicate with each other.

VLANs and MOXA EtherDevice Switch

Your EDS-726 provides support for VLANs using IEEE Std 802.1Q-1998. This standard allows traffic from multiple VLANs to be carried across one physical link. The IEEE Std 802.1Q-1998 standard allows each port on your EDS-726 to be placed in:

yAny one VLAN defined on the EDS-726.

ySeveral VLANs at the same time using 802.1Q tagging.

The standard requires that you define the 802.1Q VLAN ID about each VLAN on your EDS-726 before the switch can use it to forward traffic:

Managing a VLAN

A new or initialized EDS-726 contains a single VLAN—the Default VLAN. This VLAN has the following definition:

yVLAN Name—Management VLAN

y802.1Q VLAN ID—1 (if tagging is required)

All the ports are initially placed in this VLAN, and it is the only VLAN that allows you to access the management software of the EDS-726 over the network.

Communication Between VLANs

If devices connected to a VLAN need to communicate to devices on a different VLAN, a router or Layer 3 switching device with connections to both VLANs needs to be installed. Communication between VLANs can only take place if they are all connected to a routing or Layer 3 switching device.

VLANs: Tagged and Untagged Membership

Your EDS-726 supports 802.1Q VLAN tagging, a system that allows traffic for multiple VLANs to be carried on a single physical (backbone, trunk) link. When setting up VLANs you need to understand when to use untagged and tagged membership of VLANs. Simply put, if a port is on a single VLAN it can be an untagged member, but if the port needs to be a member of multiple VLANs, tagged membership must be defined.

A typical host (e.g., clients) will be untagged members of one VLAN, defined as “Access Port” in EDS-726, while inter-switch connections will be tagged members of all VLANs, defined as “Trunk Port” in EDS-726.

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Contents First Edition, July Moxa EtherDevice Switch EDS-726 Series User’s ManualDisclaimer Copyright NoticeTrademarks Table of Contents Chapter EDS Configurator GUI Introduction Features Package ChecklistOverview Industrial Networking CapabilityRecommended Software and Accessories Useful Utility and Remote ConfigurationGetting Started Connection Caution RS-232 Console Configuration 115200, None, 8, 1, VT100EDS-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 System Identification Configuring Basic SettingsSwitch Name PasswordSwitch Location Switch DescriptionAccount PasswordAny host on a specific subnetwork can access the EDS-726 Accessible IPAny host can access the EDS-726 Allowable Hosts Input formatPort EnableDescription NamePort Transmission Speed NetworkFDX Flow Control Port TypeSwitch IP Address Auto IP ConfigurationSwitch Subnet Mask Default GatewayCurrent Time TimeCurrent Date System Up TimeSystem File Update-By Remote Tftp System File Update-By Local Import/Export Factory Default Using Port TrunkingSystem File Update-By CF Card Port Trunking Concept Configuring Port Trunking Trunk Group Maximum of 4 trunk groups Setting DescriptionTrunk Type Member Ports/Available PortsSnmp Configuring SnmpSnmp Versions Snmp Read/Write SettingsV1, V2c Read Community V1, V2c Write/Read CommunityTrap Server IP/Name Trap SettingsSwitch Object ID Using Communication RedundancyPrivate MIB information Gigabit Ethernet Redundant Ring Capability 300 msTurbo Ring Concept Initial SetupWhen the number of EDS-726 units in the Turbo Ring is even Ring Coupling Configuring Turbo Ring STP/RSTP Concept What is STP? Port Speed Path Cost 802.1D Edition 802.1w-2001 How STP WorksSTP Requirements STP Reconfiguration STP ConfigurationDifferences between Rstp and STP STP CalculationSTP Example Using STP on a Network with Multiple VLANsConfiguring STP/RSTP Root/Not Root Forwarding DelayProtocol of Redundancy Bridge priorityEnable STP per Port Configuration Limits of RSTP/STPPort Priority Port CostWhat is Traffic Prioritization? Using Traffic PrioritizationTraffic Prioritization Concept How Traffic Prioritization WorksTraffic Prioritization Differentiated Services DiffServ Traffic MarkingIeee 802.1p Priority Level Ieee 802.1D Traffic Type Traffic Queues Configuring Traffic PrioritizationQoS Classification Queuing Mechanism Default Port Priority Inspect TOS Inspect COSTOS/DiffServ Mapping Setting Description FactoryCoS Mapping Virtual LAN Vlan Concept Using Virtual LANWhat is a VLAN? Benefits of VLANs VLANs and Moxa EtherDevice SwitchManaging a Vlan Communication Between VLANsHUB Sample Applications of VLANs using Moxa EDS-726Vlan Port Settings Configuring 802.1Q VlanPort Pvid Management Vlan IDPort Fixed Vlan List Tagged Port Forbidden Vlan ListWhat is an IP Multicast? Using Multicast FilteringConcept of Multicast Filtering Benefits of MulticastNetwork without multicast filtering Multicast FilteringIgmp Internet Group Management Protocol Snooping Mode Multicast Filtering and Moxa EtherDevice SwitchQuery Mode Igmp Multicast FilteringIgmp Snooping Settings Configuring Igmp SnoopingStatic Multicast MAC Enabling Multicast FilteringStatic Multicast Router Port Igmp SnoopingQuerier Igmp TableAdd New Static Multicast Address to the List Add Static Multicast MACNone Join PortPort Setting Description Factory Default Configuring GmrpGmrp enable Setting Description Factory Default Port Mode Setting Description Factory DefaultConfiguring Bandwidth Management Using Bandwidth ManagementGmrp Table Broadcast Storm ProtectionTraffic Rate Limiting Settings Using Port Access ControlIeee Static Port LockMessage Exchange 802.1X Configuring IeeeRadius Server Database OptionServer Port Shared Key802.1X Re-Authentication 802.1X Re-AuthenticationLocal User Database Setup 802.1X Table Local User Database SetupStatic Port Lock Email Alarm Events Settings Using Auto WarningConfiguring Email Warning Event Types MoxaEtherDeviceSwitch0001@SwitchLocationSystem Event Port EventEmail Settings Relay Alarm Events Settings Configuring Relay WarningConfiguring Relay Event Types Activate your settingsOverride relay alarm settings Relay Alarm ListUsing Set Device IP Using Line-Swap-Fast-RecoveryConfiguring Line-Swap Fast Recovery Enable Line-Swap-Fast-RecoverySet up the connected devices Configuring Set Device IPMirror Port Using DiagnosisOutput data stream Bi-directionalPing Using MonitorMonitor by Switch Monitor by Port Using the MAC Address TableALL Using Event LogEDS Configurator GUI Broadcast Search Starting EDS ConfiguratorSearch by IP address Upgrade FirmwareModify IP Address Export Configuration Import Configuration Unlock Server EDS-726 Series User’s Manual MIB II.2 Interfaces Group MIB II.1 System GroupMIB II.4 IP Group MIB II.5 Icmp GroupMIB II.17 dot1dBridge Group MIB II.10 Transmission GroupMIB II.11 Snmp Group Private Traps Public TrapsInterface Modular Managed Switch System, EDS-72610GMechanical PowerGigabit Ethernet Interface Module, IM series Optical Fiber Fast Ethernet Interface Module, IM seriesInterface Regulatory Approvals EnvironmentalService Information Following services are provided Moxa Internet ServicesSerial Number Problem Report FormProduct Return Procedure
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