Moxa Technologies PT-7728 user manual Benefits of VLANs, VLANs and the PowerTrans, Managing a Vlan

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PT-7728 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 nePT 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 the PowerTrans

Your PT-7728 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 PT-7728 to be placed as follows:

yIn a single VLAN defined on the PT-7728

yIn several VLANs simultaneously using 802.1Q tagging

The standard requires that you define the 802.1Q VLAN ID about each VLAN on your PT-7728 before the switch can use it to forward traffic:

Managing a VLAN

A new or initialized PT-7728 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 PT-7728 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.

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Contents Moxa PowerTrans Switch PT-7728 User’s Manual First Edition, February Moxa IncCopyright Notice TrademarksDisclaimer Table of Contents Appendix a MIB Groups Appendix B Specifications ‰ Overview ‰ Package Checklist ‰ Software Features IntroductionPackage Checklist Software FeaturesOverview Getting Started Serial Console Configuration 115200, None, 8, 1, VT100 PT-7728 User’s Manual Getting Started Configuration by Telnet Console Key FunctionPT-7728 User’s Manual Getting Started PT-7728 User’s Manual Getting Started Configuration by Web Browser Disabling Telnet and Browser Access Featured Functions Configuring Basic Settings System IdentificationPassword PasswordAccount Grant access to any host on a specific subnetwork Accessible IPGrant access to one host with a specific IP address Hosts That Need Access Input FormatDescription EnablePort NameNetwork SpeedFDX Flow Ctrl Switch Subnet Mask Auto IP ConfigurationSwitch IP Address Default GatewayCurrent Time TimeDaylight Saving Time Current DateSystem File Update-By Remote Tftp Firmware Files Path and Name Configuration Files Path and NameTftp Server IP/Name Log Files Path and NameSystem File Update-By Local Import/Export Factory DefaultUsing Port Trunking Port Trunking ConceptTrunk Type Configuring Port TrunkingTrunk Group Maximum of 4 trunk groups Available Ports/Member PortsConfiguring Snmp Setting DescriptionTrunk Table V1, V2c Read Community Snmp Read/Write SettingsSnmp Versions V1, V2c Write/Read CommunitySetting Description Factory Default 1st Trap Server IP/Name Setting Description Factory DefaultUsing Communication Redundancy Private MIB informationInitial setup for Turbo Ring or Turbo Ring Turbo Ring ConceptTurbo Ring with odd number switches Ring Coupling Configuration Determining the Redundant Path for Turbo RingSwitch B Configuring Turbo Ring and Turbo Ring Dual-Homing Configuration for Turbo RingConfiguring Turbo Ring Redundancy Protocol Now ActiveMaster/Slave Set as MasterEnable Ring Coupling Coupling PortCoupling Control Port Ring 1/2-1st Ring Port Status Ring 1/2-2nd Ring Port Status Enable RingRing 1/2-Status Coupling-ModeCoupling Mode Primary/Backup PortWhat is STP? STP/RSTP ConceptPT-7728 User’s Manual Featured Functions STP Requirements STP ConfigurationHow STP Works Port Speed Path Cost 802.1D Edition 802.1w-2001STP Reconfiguration Differences between Rstp and STPSTP Example Using STP on a Network with Multiple VLANs Protocol of Redundancy Configuring STP/RSTPRoot/Not Root Bridge PriorityHello Time sec Forwarding DelayEnable STP per Port Max. Age secWhat is Traffic Prioritization? Using Traffic PrioritizationConfiguration Limits of RSTP/STP Traffic Prioritization ConceptHow Traffic Prioritization Works Ieee 802.1p Priority Level Ieee 802.1D Traffic TypeDifferentiated Services DiffServ Traffic Marking Traffic PrioritizationTraffic Queues Queuing Mechanism Configuring Traffic Prioritization QoS Classification Inspect TOSTOS/DiffServ Mapping Setting Description FactoryCoS Mapping Inspect COSUsing Virtual LAN What is a VLAN?Virtual LAN Vlan Concept Managing a Vlan VLANs and the PowerTransBenefits of VLANs Communication Between VLANsSample Applications of VLANs using PT-7728 VLANs Tagged and Untagged MembershipPT-7728 User’s Manual Featured Functions Management Vlan ID Configuring Virtual LANVlan Settings Port TypeConcept of Multicast Filtering Using Multicast FilteringWhat is an IP Multicast? Vlan TableBenefits of Multicast Multicast FilteringNetwork without multicast filtering Query Mode Multicast Filtering and Moxa PowerTrans SwitchIgmp Internet Group Management Protocol Snooping Mode Network with multicast filteringGmrp Garp Multicast Registration Protocol Configuring Igmp SnoopingIgmp Multicast Filtering Static Multicast MACIgmp Snooping Settings Add Static Multicast MAC Gmrp enable Using Bandwidth ManagementConfiguring Gmrp Gmrp TableConfiguring Bandwidth Management Broadcast Storm Protection Traffic Rate Limiting SettingsIngress Static Port Lock Using Port Access ControlConfiguring Static Port Lock IeeeRadius Server Configuring IeeeDatabase Option Server Port802.1X Re-Authentication Local User Database SetupUsing Auto Warning Port Access Control TableLocal User Database Setup Configuring Email Warning Event TypePort Events Email SetupMoxaPowerTransSwitch0001@SwitchLocation Mail Server IP/NameAccount Name Configuring Relay WarningPassword Setting Email AddressEvent Setup Configuring Line-Swap Fast Recovery Using Line-Swap-Fast-RecoveryUsing Set Device IP Override relay alarm settingsConfiguring Set Device IP Set up the connected devicesUsing Diagnosis Mirror PortUsing Monitor Monitor by SwitchPing Using the MAC Address Table Monitor by PortUsing Event Log MACUsing Syslog Syslog ServerPT-7728 User’s Manual Featured Functions 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 TrapsSwitch Properties TechnologyInterface Power Optical Fiber 100BaseFXWarranty MechanicalEnvironmental
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