Rstp Applications | RuggedCom RS400 specs

Spanning Tree

5.3 RSTP Applications

5.3.1 RSTP in Structured Wiring Configurations

RSTP allows you to construct structured wiring systems in which connectivity is maintained in the event of link failures. For example a single link failure of any of links A through N in Figure 96 would leave all the ports of bridges 555 through 888 connected to the network.

Figure 96: Example of a Structured Wiring Configuration

Design Considerations for RSTP in Structured Wiring Configurations

1. Select the design parameters for the network.

What are the requirements for robustness and network failover/recovery times? Are there special requirements for diverse routing to a central host computer? Are there any special port redundancy requirements?

2. Identify required legacy support.

Are STP bridges used in the network? These bridges do not support rapid transitioning to forwarding. If these bridges are present can they be re-deployed closer to the network edge?

3. Identify edge ports and ports with half duplex/shared media restrictions.

Ports that connect to host computers, IEDs and controllers may be set to edge ports in order to guarantee rapid transitioning to forwarding as well as reduce the number of topology change

RS400

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ROS™ v3.5

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RuggedCom RS400 Rstp Applications, Rstp in Structured Wiring Configurations, Select the design parameters for the network

Contents

Rugged Operating System ROS V3.5 User Guide Registered Trademarks WarrantyCopyright Disclaimer of liability Table Of Contents DNP 109 Igmp 221 Page Table Of Figures WIN and TIN Form 160 Port Lldp Parameters Form 216 Document Conventions Supported PlatformsWho Should Use This User Guide How Chapters are organized Firmware/User Guide Version Numbering System Applicable Firmware Revision ROS User Interface Using the RS232 Port to Access the User InterfaceAdministration Structure of the User Interface Making Configuration Changes ROS Secure Shell Server ROS Web Server Interface Using a Web Browser to Access the Web Interface Log in to The Device with a Web Browser ROS RS400 Main Menu via Web Server Interface Structure of the Web Interface Parameters Form Example Updating Statistics Displays Administration Menu Administration Menu IP Interfaces Table IP Interfaces IP Address Type TypeMgmt Subnet Synopsis ###.###.###.### where ### ranges from 0 to DefaultIP Address Gateway IP GatewaysDestination Web Server Users Allowed IP ServicesInactivity Timeout Telnet Sessions Allowed SSH Sessions Allowed Synopsis 1 to 254 or Disabled Default DisabledSynopsis Disabled, Enabled Default Enabled ModBus Address Location Login BannerSystem Identification System Name Auth Type PasswordsSynopsis Local, Radius Default Local Admin Username Administration Guest UsernameGuest Password Operator Password Time Zone Time and DateTime Date NTP Server Address Default UTC-000 Lisbon, LondonNTP Update Period Synopsis 1 to Default 60 min Snmp Users Snmp Management Auth Key NameAuth Protocol Priv Protocol SecurityModel Administration Priv KeySynopsis snmpV1, snmpV2c, snmpV3 Default snmpV3 Snmp Security to Group Maps Group Snmp AccessSynopsis Any 32 characters Default WriteViewName Synopsis noView, V1Mib, allOfMib Default noViewSecurityLevel ReadViewName Administration NotifyViewName Radius overview User Login Authentication and Authorization Vendor Server Radius Server ConfigurationDefault Primary Synopsis ###.###.###.### where ### ranges from 0 to Auth UDP Port TACACS+ TACACS+ Server Configuration TACACS+ Server Form Auth TCP Port Dhcp Server Address Dhcp Relay Agent N/A for RMC30 Syslog Configuring Local SyslogAdministration Dhcp Client Ports Default Debugging UDP Port Configuring Remote Syslog ClientConfiguring Remote Syslog Server Synopsis 1025 to 65535 or Default Severity Facility Problem One Troubleshooting Serial Protocols 1 ‘Raw Socket’ protocol features2 ‘Preemptive Raw Socket’ protocol features Serial Protocols Overview 6 ‘WIN’ protocol features 3 ‘Modbus’ protocol features4 ‘DNP’ protocol features 5 ‘Microlok’ protocol features RTU Polling Serial Protocols Operation Broadcast RTU Polling Broadcast RTU Polling Permanent and Dynamic Master Connection Support Preemptive Raw Socket Message Packetization Use of Port Redirectors TCPModbus Performance Determinants Modbus Server and Client Applications RTU Worked Example Use of Turnaround Delay Concept of Links DNP 3.0, Microlok, TIN and WIN Applications Address Learning for DNP Address Learning Address Learning for TIN TIN Broadcast Messages Broadcast Messages DNP Broadcast Messages Transport for Protocols with Defined Links Use of Differentiated Services Code Point DscpTransport Protocols Transport for Raw Socket Optical loop topology Force Half Duplex Mode of Operation Serial Protocols Menu Serial Protocol Configuration and Statistics Serial Ports Table Serial Ports ForceHD Pack TimerSerial Protocols Port Protocol Raw Socket Default 0 ms Transport Pack CharFlow Control Rem Port Call DirMax Conns Loc Port Preemptive Raw Socket Table Preemptive Raw Socket Dyn Pack Char Synopsis 3 to Default 10 msDyn Pack Timer Synopsis 1 to maximum port number Serial Protocols TimeoutSynopsis 10 to Default 10 s Modbus Server Send Exceptions Response TimerModbus Client Auxiliary TCP Port Serial Protocols Forward Exceptions WIN and TIN TIN Transport Serial Protocols TIN ModeMessage Aging Timer Address Aging Timer WIN Dscp MicroLok Learning Synopsis TCP, UDP Default TCP8 DNP Mirrored Bits Serial Protocols Aging Timer Mirrored Bits Form Device Address Table Device Addresses Synopsis 1 to maximum port number or Unknown Synopsis Any 31 characters DefaultAddress Remote IP Addr Dynamic Device Addresses Default UnknownSynopsis Any 16 characters Default Aging Time Links Statistics Connection Statistics Serial Port Statistics Overrun Errors Packet ErrorsParity Errors Framing Errors Clearing Serial Port Statistics Resetting Serial Ports Problem Four Problem TwoProblem Three Page Ethernet Ports Controller Protection Through Link-Fault-Indication LFI Ethernet Ports Ethernet Ports Menu Ethernet Ports Configuration and Status Port Parameters Table Port Parameters Speed MediaState AutoN LFI Link Alarms Port Rate Limiting Table Port Rate Limiting Ingress Frames Port MirroringPort Mirroring Limitations Ingress Limit Target Port Synopsis Disabled, Enabled Default DisabledPort Mirroring Source Port Fast Link Detection Synopsis Off, On, OnwithPortGuard Default OnwithPortGuardLink Detection Options Negative impact on overall system responsiveness PoE Parameters when applicable Pwr Limit AdminPowered Class Ethernet Ports Current EoVDSL Parameters when applicable ROS 106 RS400 Set Rate DS/US Mode SNR Mrgn Port StatusLink Link Rate DS/US Duplex Resetting PortsEthernet Ports Name Page Ethernet Statistics Ethernet Statistics OutOctets Viewing Ethernet StatisticsSynopsis ----, Down, Up InOctets OutPkts ErrorPktsEthernet Statistics InPkts Ethernet Port Statistics Table Viewing Ethernet Port Statistics Ethernet Port Statistics Form TotalInPkts CRCAlignErrorsEthernet Statistics InOctets TotalInOctets Pkt64Octets JabbersCollisions LateCollisions OutUcastPkts Ethernet Statistics OutMulticastsOutBroadcasts UndersizePkts Clear Ethernet Port Statistics Form Clearing Ethernet Port Statistics Rmon History Controls Remote Monitoring Rmon Interval IndexRequested Buckets Granted Buckets Ethernet Statistics Owner Synopsis Any 127 characters Default MonitorRmon History Samples Synopsis Dddd days, Hhmmss SampleStartTime Number of good Broadcast packets received Utilization Rmon Alarms ROS 126 RS400 Rising Thr Variable Rising Event Startup AlarmFalling Thr Value Rmon Events Table Rmon Events Last Time Sent Synopsis none, log, snmpTrap, logAndTrap Default logAndTrapSynopsis Any 31 characters Default public Community Rmon Event Log Table Rmon Event Log Synopsis Any 49 characters LogLogTime LogDescription Spanning Tree Rstp Operation State Rstp States and Roles Bridge and Port Roles Role How Port Costs Are Generated Edge PortsPoint-to-Point and Multipoint Links Path and Port Costs Bridge Diameter STP vs. Rstp Costs MST Regions and Interoperability Mstp Operation Msti Regional Root Mstp Bridge and Port Roles 5.2.2.1 Bridge RolesCist Root Cist Regional Root Boundary Ports Port RolesCist Port Roles Msti Port Roles Mstp versus Pvst Isolation of Spanning Tree ReconfigurationBenefits of Mstp Load Balancing Implementing Mstp on a Bridged Network Identify required legacy support Rstp in Structured Wiring ConfigurationsRstp Applications Select the design parameters for the network Decide upon port cost calculation strategy Rstp in Ring Backbone ConfigurationsChoose the root bridge and backup root bridge carefully Identify desired steady state topology Assign bridge priorities to the ring Rstp Port RedundancyIdentify edge ports Choose the root bridge Spanning Tree Menu Spanning Tree Configuration ERSTP Enhancements Synopsis STP, RSTP, Mstp Default RstpBridge Rstp Parameters Version Support Max Age Time Forward DelayBridge Priority Hello Time Cost Style Synopsis STP 16 bit, Rstp 32 bit Default STP 16 bitBpdu Guard Timeout Ports Port Rstp Parameters Rstp Cost Spanning Tree EnabledPriority STP Cost Spanning Tree Digest Synopsis Any 32 characters Default 00-0A-DC-00-41-74MST Region Identifier Revision Level Instance ID Bridge Msti Parameters Port Msti Parameter Table Port Msti Parameters Ports Bridge ID Spanning Tree StatisticsBridge Rstp Statistics Bridge Status Configured Max Age Configured Hello TimeConfigured Forward Delay Learned Forward Delay Port Rstp Statistics Table Port Rstp Statistics Role Status RX RSTs RX ConfigsTX Configs Cost Bridge Msti Statistics Table Bridge Msti Statistics Port Msti Statistics Table Port Msti Statistics Port Msti Statistics Form Spanning Tree Role Troubleshooting Problem Seven Problem FiveProblem Six Problem Nine Problem Eight Native Vlan Vlan OperationVLANs and Tags Tagged vs. Untagged Frames Vlan Ingress and Egress Rules Edge and Trunk Port TypesEdge Type Trunk Type VLAN-aware and VLAN-unaware operation modes Egress RulesForbidden Ports List Gvrp Generic Vlan Registration Protocol QinQ not supported in RS400 and RS8000/RS1600 families Edge Switch ROS 174 RS400 Traffic Domain Isolation Vlan Applications Reduced Hardware Administrative Convenience VLAN-aware Vlan ConfigurationSynopsis No, Yes Default Yes Global Vlan Parameters VID Static VLANs Forbidden Ports Synopsis Any 19 characters DefaultVlan Name Port Vlan Parameters Table Port Vlan Parameters VLANs Ports Synopsis Edge, Trunk Default EdgeSynopsis Untagged, Tagged Default Untagged Synopsis Adv&Learn, Adv Only, Disabled Default Disabled Dynamic Vlan SummaryExplicit Implicit Don’t need VLANs at all. How do I turn them off? Page CoS Operation Inspection PhaseClasses of Service Determining The CoS Of a Received Frame Forwarding Phase Global CoS Parameters CoS ConfigurationCoS Weighting Synopsis 8421, Strict Default Port CoS Parameter Table Port CoS Parameters Inspect TOS Default CoSSynopsis Normal, Medium, High, Crit Default Normal Priority to CoS Mapping Priority to CoS Mapping Form CoS TOS Dscp to CoS Mapping Table Dscp to CoS Mapping CoS Access Priorities Table CoS Access Priorities RS8000 and RS1600 families only Crit Access Priority Normal Access PriorityPage Multicast Filtering IgmpRouter and Host Igmp Operation Active Mode Switch Igmp Operation Igmp and Rstp Passive ModeIgmp Snooping Rules Processing Joins Combined Router and Switch Igmp Operation Processing Leaves Configuring Igmp Parameters Multicast Filtering Configuration and Status Router Forwarding Multicast Filtering ModeQuery Interval Router Ports MAC Address Configuring Static Multicast GroupsSynopsis ##-##-##-##-##-## where ## ranges 0 to FF Default Joined Ports Synopsis ##-##-##-##-##-## where ## ranges 0 to FFViewing IP Multicast Groups Troubleshooting Problem Six Page MAC Address Tables MAC Address Tables Synopsis Normal, Medium, High, Crit Viewing MAC AddressesSynopsis 0 to 65535 or Multi, Local Synopsis Static, Dynamic Age Upon Link Loss Configuring MAC Address Learning OptionsConfiguring Static MAC Address Table Synopsis 15 to Default 300 s MAC address that is to be statically configured Purging MAC Address Table Page Network Discovery Lldp Operation Network Discovery Menu Network Discovery Menu Tx Interval Reinit DelayTx Delay Global Lldp Parameters Port Lldp Parameters Table Port Lldp Parameters Lldp Global Remote Statistics Lldp Neighbor Information Lldp Statistics Page PPP over Modem PPP over Modem OperationRemote Dial-in For Monitoring Router Concentration Router Concentration Assigning IP Addresses For PPP 11.1.4 PAP/CHAP Authentication 11.1.4.1 Users ProfilesUsing PAP Using Chap Static Routes PPP Configuration Menu PPP Configuration Country Code Modem SettingsAT Commands Synopsis Any 48 characters Default Remote IP Address PPP ControlPPP Status Local IP Address PPP over Modem Server Name Synopsis Any 15 characters Default ServerOutgoing PAP Password Synopsis Any 15 characters Default User Name PPP Users Remote Subnet PPP over Modem PasswordSynopsis Any 9 characters Default Remote Net Synopsis 0 to 2147483647 bps or Offline PPP StatisticsCurrent Status Modem Speed Connected User AuthenticationPPP over Modem Tx LCP Packets Clearing PPP Statistics Resetting PPP Can connect to the server, but I can’t ping or telnet to it Am having performance problems Page Diagnostics Using the Alarm System Viewing and Clearing Alarms Active AlarmsPassive Alarms Alarms and the Critical Failure Relay Synopsis Any 127 characters Viewing CPU DiagnosticsTotal Powered Time Synopsis MMM DD Hhmm RAM Available Diagnostics CPU UsageTemperature RAM Total Viewing the System Log Viewing and Clearing the System Log Viewing Product Information RS900 v2, 40-00-0066, RS900 v2 Loading Factory Default ConfigurationResetting the Device ROS 244 RS400 Entering and Leaving the Shell Summary Of CLI Commands available in ROSUsing the CLI Shell Listing files Getting Help for a CommandViewing Files Tracing Events Viewing and Clearing Log FilesPinging a Remote Device Enabling Trace Displaying Trace settings Viewing Dhcp Learned Information Executing Commands Remotely Through RSHStarting Trace Resetting the Device Upgrading Firmware Upgrading Firmware using XModemUpgrading Firmware and Managing Configurations Checking Status of Download Upgrading Firmware Using a Tftp Client on Your Workstation Example of an Upgrade using ROS Tftp Client Upgrading Firmware Using ROS Tftp Client Capturing Configurations with Tftp Capturing ConfigurationsCapturing Configurations with XModem Finding the Correct Table Using SQL CommandsGetting Started Retrieving Parameter from a Table Retrieving a Table with Where Clause Changing Values in a Table Setting Default Values in a Table Using RSH and SQL Using RSH and SQL Groups Supported Standard MIBsModule Name Proprietary MIB Module Name RuggedCom proprietary MIBs Appendix B Snmp Trap Summary IfInUcastPkts IfInErrorsTcpInSegs IfInOctets UdpNoPorts UdpInErrorsTcpRetransSegs UdpInDatagrams EtherStatsOversizePkts EtherStatsCRCAlignErrorsEtherStatsMulticastPkts EtherStatsUndersizePkts Dot1dTpPortOutFrames Dot1dBasePortDelayExceededDiscardsDot1dBasePortMtuExceededDiscards Dot1dTpPortInFrames IfHCOutBroadcastPkts RcDeviceStsTemperature 0x10 Request0x040x03 Response Modbus Memory Map AlarmsPage Serial Uint32 TextCmd Uint16 PSStatusCmd AlarmRead Data from device using PortCmd Performing write actions on the device using PortCmd See ROS Read Power Supply Status from device using PSStatusCmd See Lldp Msti Tagging 169