Moxa Technologies PT-7728 user manual Using Port Trunking, Port Trunking Concept

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	PT-7728 User’s Manual		Featured Functions

	NOTE	After restoring the factory default configuration, you will need to use the default network settings
		to re-establish the web or Telnet console connection with the PT-7728.

Using Port Trunking

Link aggregation involves grouping links to into a link aggregation group. A MAC client can treat link aggregation groups as if they were a single link.

The PT-7728’s port trunking feature allows devices to communicate by aggregating up to 4 trunk groups, with a maximum of 8 ports for each group. If one of the 8 ports fails, the other seven ports will automatically provide backup and share the traffic.

Port trunking can be used to combine up to 8 ports between two PT-7728 switches. If all ports on both switch units are configured as 100BaseTX and they are operating in full duplex, the potential bandwidth of the connection will be 1600 Mbps.

The Port Trunking Concept

Moxa has developed a proprietary port trunking protocol that provides the following benefits:

yMore flexibility in setting up your network connections, since the bandwidth of a link can be doubled, tripled, or quadrupled

yRedundancy — if one link is broken, the remaining trunked ports share the traffic within this trunk group

yLoad sharing — MAC client traffic may be distributed across multiple links

To avoid broadcast storms or loops in your network while configuring a trunk, first disable or disconnect all ports that you want to add to the trunk or remove from the trunk. After you finish configuring the trunk, enable or re-connect the ports.

If all ports on both switch units are configured as 100BaseTX and they are operating in full duplex mode, the potential bandwidth of the connection will be up to 1.6 Gbps. This means that users can double, triple, or quadruple the bandwidth of the connection by port trunking between two PT series switches.

Each PT-7728 can set a maximum of 4 port trunking groups. When you activate port trunking, certain settings on each port will be reset to factory default values or disabled:

yCommunication redundancy will be reset

y802.1Q VLAN will be reset

yMulticast Filtering will be reset

yPort Lock will be reset and disabled.

ySet Device IP will be reset

yMirror will be reset

After port trunking has been activated, you may configure these items again for each trunking ports.

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Contents Moxa PowerTrans Switch PT-7728 User’s Manual First Edition, February Moxa IncDisclaimer Copyright NoticeTrademarks Table of Contents Appendix a MIB Groups Appendix B Specifications ‰ Overview ‰ Package Checklist ‰ Software Features IntroductionOverview Package ChecklistSoftware Features 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 IdentificationAccount PasswordPassword 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 NameFDX Flow Ctrl NetworkSpeed 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 PortsTrunk Table Configuring SnmpSetting Description 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 Configuring Turbo Ring and Turbo RingDual-Homing Configuration for Turbo Ring Redundancy Protocol Now ActiveMaster/Slave Set as MasterCoupling Control Port Enable Ring CouplingCoupling 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 Example STP ReconfigurationDifferences between Rstp and STP 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 TypeTraffic Queues Differentiated Services DiffServ Traffic MarkingTraffic Prioritization Queuing Mechanism Configuring Traffic PrioritizationQoS Classification Inspect TOSTOS/DiffServ Mapping Setting Description FactoryCoS Mapping Inspect COSVirtual LAN Vlan Concept Using Virtual LANWhat is a VLAN? 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 TableNetwork without multicast filtering Benefits of MulticastMulticast 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 TableIngress Configuring Bandwidth Management Broadcast Storm ProtectionTraffic Rate Limiting Settings Static Port Lock Using Port Access ControlConfiguring Static Port Lock IeeeRadius Server Configuring IeeeDatabase Option Server Port802.1X Re-Authentication Local User Database SetupLocal User Database Setup Using Auto WarningPort Access Control Table 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 PortPing Using MonitorMonitor by Switch 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.17 dot1dBridge Group MIB II.10 Transmission GroupMIB II.11 Snmp Group Public Traps Private TrapsInterface Switch PropertiesTechnology Power Optical Fiber 100BaseFXEnvironmental WarrantyMechanical