Moxa Technologies EDS-726 Using Communication Redundancy, Private MIB information, Trap Community

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EDS-726 Series User’s Manual				Featured Functions
Trap Community

	Setting		Description	Factory Default
	character string		Use a community string match for	public
	character string		authentication (maximum of 30	public
			characters).
Private MIB information
Switch Object ID
	Setting		Description	Factory Default
	8691.7.1		EDS-726’s enterprise value	Fixed

NOTE: The Switch Object ID cannot be changed.

Using Communication Redundancy

Setting up Communication Redundancy on your network helps protect critical links against failure, protects against network loops, and keeps network downtime at a minimum.

The Communication Redundancy function allows the user to set up redundant loops in the network to provide a backup data transmission route in the event that a cable is inadvertently disconnected or damaged. This is a particularly important feature for industrial applications, since it could take several minutes to locate the disconnected or severed cable. For example, if MOXA EDS-726 is used as a key communications component of a production line, several minutes of downtime could cause a big loss in production and revenue. MOXA EDS-726 supports two different protocols for this communication redundancy function—Rapid Spanning Tree Protocol (IEEE-802.1w)and Turbo Ring.

Turbo Ring and STP/RSTP cannot both be used on the network at the same time. The table below lists the key differences between each feature. Use this information to evaluate the benefits of each, and then determine which features are most suitable for your network.

	Turbo Ring	STP	RSTP
Topology	Ring	Ring, Mesh	Ring, Mesh
Recovery Time	< 300 ms	Up to 30 sec.	Up to 5 sec

Gigabit Ethernet Redundant Ring Capability (< 300 ms)

Ethernet has become the default data communications medium for industrial automation applications. In fact, Ethernet is often used to integrate video, voice, and high-rate industrial application data transfers into one network. MOXA EDS-726, which comes equipped with a redundant Gigabit Ethernet protocol called Gigabit Turbo Ring, gives system maintainers a convenient means of setting up a versatile yet stable Gigabit Ethernet network. With Gigabit Turbo Ring, if any segment of the network gets disconnected, your automation system will be back to normal in under 300 ms.

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Contents Moxa EtherDevice Switch EDS-726 Series User’s Manual First Edition, JulyTrademarks Copyright NoticeDisclaimer 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 System File Update-By CF Card Using Port TrunkingFactory Default Port Trunking Concept Configuring Port Trunking Trunk Type Setting DescriptionTrunk Group Maximum of 4 trunk groups Member Ports/Available Ports Configuring 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? STP Requirements How STP WorksPort 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 WorksIeee 802.1p Priority Level Ieee 802.1D Traffic Type Differentiated Services DiffServ Traffic MarkingTraffic Prioritization QoS Classification Configuring Traffic PrioritizationTraffic Queues Inspect TOS Default Port PriorityQueuing Mechanism Inspect COSCoS Mapping Setting Description FactoryTOS/DiffServ Mapping What is a VLAN? Using Virtual LANVirtual 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 KeyLocal User Database Setup 802.1X Re-Authentication802.1X Re-Authentication Static Port Lock Local User Database Setup802.1X Table Configuring Email Warning Using Auto 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-directionalMonitor by Switch Using MonitorPing 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.11 Snmp Group MIB II.10 Transmission GroupMIB II.17 dot1dBridge Group Public Traps Private TrapsModular Managed Switch System, EDS-72610G InterfaceGigabit Ethernet Interface Module, IM series PowerMechanical 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