Problem Six

Multicast Filtering

I connect or disconnect some switch ports and multicast goes everywhere. Is IGMP broken?

No, it may be a proper switch behavior. When the switch detects a change in the network topology through RSTP it acts to avoid loss of multicast traffic – if configured to do so, it starts forwarding all multicast traffic to all ports that are not RSTP Edge ports (because they may potentially link to routers). This may result in some undesired flooding of multicast traffic (which will stop after few minutes), however, it guarantees that all devices interested in the traffic will keep receiving it with no break. Note that the same behavior will be observed when the switch resets or when IGMP Snooping is being enabled for the VLAN.

RS400

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ROS™ v3.5

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Contents

Rugged Operating System ROS V3.5 User Guide Copyright WarrantyDisclaimer of liability Registered Trademarks Table Of Contents DNP 109 Igmp 221 Page Table Of Figures WIN and TIN Form 160 Port Lldp Parameters Form 216 Who Should Use This User Guide Supported PlatformsHow Chapters are organized Document Conventions Firmware/User Guide Version Numbering System Applicable Firmware Revision Administration Using the RS232 Port to Access the User InterfaceROS User Interface 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 Mgmt TypeIP Address Type IP Address Synopsis ###.###.###.### where ### ranges from 0 to DefaultSubnet Destination IP GatewaysGateway Inactivity Timeout IP ServicesTelnet Sessions Allowed Web Server Users Allowed Synopsis Disabled, Enabled Default Enabled Synopsis 1 to 254 or Disabled Default DisabledModBus Address SSH Sessions Allowed System Identification Login BannerSystem Name Location Synopsis Local, Radius Default Local PasswordsAuth Type Guest Password Administration Guest UsernameOperator Password Admin Username Time Time and DateDate Time Zone NTP Update Period Default UTC-000 Lisbon, LondonSynopsis 1 to Default 60 min NTP Server Address Snmp Users Snmp Management Auth Protocol NamePriv Protocol Auth Key Synopsis snmpV1, snmpV2c, snmpV3 Default snmpV3 Administration Priv KeySnmp Security to Group Maps SecurityModel Synopsis Any 32 characters Default Snmp AccessGroup SecurityLevel Synopsis noView, V1Mib, allOfMib Default noViewReadViewName WriteViewName Administration NotifyViewName Radius overview User Login Authentication and Authorization Vendor Default Primary Radius Server ConfigurationSynopsis ###.###.###.### where ### ranges from 0 to Server Auth UDP Port TACACS+ TACACS+ Server Configuration TACACS+ Server Form Auth TCP Port Dhcp Server Address Dhcp Relay Agent N/A for RMC30 Administration Dhcp Client Ports Configuring Local SyslogDefault Debugging Syslog Configuring Remote Syslog Server Configuring Remote Syslog ClientSynopsis 1025 to 65535 or Default UDP Port Severity Facility Problem One Troubleshooting 2 ‘Preemptive Raw Socket’ protocol features 1 ‘Raw Socket’ protocol featuresSerial Protocols Overview Serial Protocols 4 ‘DNP’ protocol features 3 ‘Modbus’ protocol features5 ‘Microlok’ protocol features 6 ‘WIN’ 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 Protocols Use of Differentiated Services Code Point DscpTransport for Raw Socket Transport for Protocols with Defined Links Optical loop topology Force Half Duplex Mode of Operation Serial Protocols Menu Serial Protocol Configuration and Statistics Serial Ports Table Serial Ports Serial Protocols Port Pack TimerProtocol ForceHD Raw Socket Default 0 ms Flow Control Pack CharTransport Max Conns Call DirLoc Port Rem Port Preemptive Raw Socket Table Preemptive Raw Socket Dyn Pack Timer Synopsis 3 to Default 10 msDyn Pack Char Synopsis 10 to Default 10 s Serial Protocols TimeoutModbus Server Synopsis 1 to maximum port number Modbus Client Response TimerAuxiliary TCP Port Send Exceptions Serial Protocols Forward Exceptions WIN and TIN Message Aging Timer Serial Protocols TIN ModeAddress Aging Timer TIN Transport WIN Dscp MicroLok 8 DNP Synopsis TCP, UDP Default TCPLearning Mirrored Bits Serial Protocols Aging Timer Mirrored Bits Form Device Address Table Device Addresses Address Synopsis Any 31 characters DefaultRemote IP Addr Synopsis 1 to maximum port number or Unknown Synopsis Any 16 characters Default Default UnknownDynamic Device Addresses Aging Time Links Statistics Connection Statistics Serial Port Statistics Parity Errors Packet ErrorsFraming Errors Overrun Errors Clearing Serial Port Statistics Resetting Serial Ports Problem Three Problem TwoProblem Four 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 State MediaAutoN Speed LFI Link Alarms Port Rate Limiting Table Port Rate Limiting Port Mirroring Limitations Port MirroringIngress Limit Ingress Frames Port Mirroring Synopsis Disabled, Enabled Default DisabledSource Port Target Port Link Detection Options Synopsis Off, On, OnwithPortGuard Default OnwithPortGuardFast Link Detection Negative impact on overall system responsiveness PoE Parameters when applicable Powered AdminClass Pwr Limit Ethernet Ports Current EoVDSL Parameters when applicable ROS 106 RS400 Set Rate DS/US Mode Link Port StatusLink Rate DS/US SNR Mrgn Ethernet Ports Name Resetting PortsDuplex Page Ethernet Statistics Ethernet Statistics Synopsis ----, Down, Up Viewing Ethernet StatisticsInOctets OutOctets Ethernet Statistics InPkts ErrorPktsOutPkts Ethernet Port Statistics Table Viewing Ethernet Port Statistics Ethernet Port Statistics Form Ethernet Statistics InOctets CRCAlignErrorsTotalInOctets TotalInPkts Collisions JabbersLateCollisions Pkt64Octets OutBroadcasts Ethernet Statistics OutMulticastsUndersizePkts OutUcastPkts Clear Ethernet Port Statistics Form Clearing Ethernet Port Statistics Rmon History Controls Remote Monitoring Rmon Requested Buckets IndexGranted Buckets Interval Rmon History Samples Synopsis Any 127 characters Default MonitorEthernet Statistics Owner StartTime SampleSynopsis Dddd days, Hhmmss Number of good Broadcast packets received Utilization Rmon Alarms ROS 126 RS400 Rising Thr Variable Falling Thr Startup AlarmValue Rising Event Rmon Events Table Rmon Events Synopsis Any 31 characters Default public Synopsis none, log, snmpTrap, logAndTrap Default logAndTrapCommunity Last Time Sent Rmon Event Log Table Rmon Event Log LogTime LogLogDescription Synopsis Any 49 characters Spanning Tree Rstp Operation State Rstp States and Roles Bridge and Port Roles Role Point-to-Point and Multipoint Links Edge PortsPath and Port Costs How Port Costs Are Generated Bridge Diameter STP vs. Rstp Costs MST Regions and Interoperability Mstp Operation Cist Root Mstp Bridge and Port Roles 5.2.2.1 Bridge RolesCist Regional Root Msti Regional Root Cist Port Roles Port RolesMsti Port Roles Boundary Ports Benefits of Mstp Isolation of Spanning Tree ReconfigurationLoad Balancing Mstp versus Pvst Implementing Mstp on a Bridged Network Rstp Applications Rstp in Structured Wiring ConfigurationsSelect the design parameters for the network Identify required legacy support Choose the root bridge and backup root bridge carefully Rstp in Ring Backbone ConfigurationsIdentify desired steady state topology Decide upon port cost calculation strategy Identify edge ports Rstp Port RedundancyChoose the root bridge Assign bridge priorities to the ring Spanning Tree Menu Spanning Tree Configuration Bridge Rstp Parameters Synopsis STP, RSTP, Mstp Default RstpVersion Support ERSTP Enhancements Bridge Priority Forward DelayHello Time Max Age Time Bpdu Guard Timeout Synopsis STP 16 bit, Rstp 32 bit Default STP 16 bitCost Style Ports Port Rstp Parameters Priority Spanning Tree EnabledSTP Cost Rstp Cost Spanning Tree MST Region Identifier Synopsis Any 32 characters Default 00-0A-DC-00-41-74Revision Level Digest Instance ID Bridge Msti Parameters Port Msti Parameter Table Port Msti Parameters Ports Bridge Rstp Statistics Spanning Tree StatisticsBridge Status Bridge ID Configured Forward Delay Configured Hello TimeLearned Forward Delay Configured Max Age Port Rstp Statistics Table Port Rstp Statistics Role Status TX Configs RX ConfigsCost RX RSTs Bridge Msti Statistics Table Bridge Msti Statistics Port Msti Statistics Table Port Msti Statistics Port Msti Statistics Form Spanning Tree Role Troubleshooting Problem Six Problem FiveProblem Seven Problem Nine Problem Eight VLANs and Tags Vlan OperationTagged vs. Untagged Frames Native Vlan Edge Type Edge and Trunk Port TypesTrunk Type Vlan Ingress and Egress Rules Forbidden Ports List Egress RulesVLAN-aware and VLAN-unaware operation modes 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 Synopsis No, Yes Default Yes Vlan ConfigurationGlobal Vlan Parameters VLAN-aware VID Static VLANs Vlan Name Synopsis Any 19 characters DefaultForbidden Ports Port Vlan Parameters Table Port Vlan Parameters Synopsis Untagged, Tagged Default Untagged Synopsis Edge, Trunk Default EdgeSynopsis Adv&Learn, Adv Only, Disabled Default Disabled VLANs Ports Explicit Vlan SummaryImplicit Dynamic Don’t need VLANs at all. How do I turn them off? Page Classes of Service Inspection PhaseCoS Operation Determining The CoS Of a Received Frame Forwarding Phase CoS Weighting CoS ConfigurationSynopsis 8421, Strict Default Global CoS Parameters Port CoS Parameter Table Port CoS Parameters Synopsis Normal, Medium, High, Crit Default Normal Default CoSPriority to CoS Mapping Inspect TOS 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 Router and Host Igmp Operation IgmpMulticast Filtering Active Mode Switch Igmp Operation Igmp Snooping Rules Passive ModeIgmp and Rstp Processing Joins Combined Router and Switch Igmp Operation Processing Leaves Configuring Igmp Parameters Multicast Filtering Configuration and Status Query Interval Multicast Filtering ModeRouter Ports Router Forwarding Synopsis ##-##-##-##-##-## where ## ranges 0 to FF Default Configuring Static Multicast GroupsMAC Address Viewing IP Multicast Groups Synopsis ##-##-##-##-##-## where ## ranges 0 to FFJoined Ports Troubleshooting Problem Six Page MAC Address Tables MAC Address Tables Synopsis 0 to 65535 or Multi, Local Viewing MAC AddressesSynopsis Static, Dynamic Synopsis Normal, Medium, High, Crit Configuring Static MAC Address Table Configuring MAC Address Learning OptionsSynopsis 15 to Default 300 s Age Upon Link Loss MAC address that is to be statically configured Purging MAC Address Table Page Network Discovery Lldp Operation Network Discovery Menu Network Discovery Menu Tx Delay Reinit DelayGlobal Lldp Parameters Tx Interval Port Lldp Parameters Table Port Lldp Parameters Lldp Global Remote Statistics Lldp Neighbor Information Lldp Statistics Page Remote Dial-in For Monitoring PPP over Modem OperationPPP over Modem Router Concentration Router Concentration Using PAP 11.1.4 PAP/CHAP Authentication 11.1.4.1 Users ProfilesUsing Chap Assigning IP Addresses For PPP Static Routes PPP Configuration Menu PPP Configuration AT Commands Modem SettingsSynopsis Any 48 characters Default Country Code PPP Status PPP ControlLocal IP Address Remote IP Address Outgoing PAP Password Synopsis Any 15 characters Default ServerSynopsis Any 15 characters Default PPP over Modem Server Name User Name PPP Users Synopsis Any 9 characters Default PPP over Modem PasswordRemote Net Remote Subnet Current Status PPP StatisticsModem Speed Synopsis 0 to 2147483647 bps or Offline PPP over Modem Tx LCP Packets AuthenticationConnected User 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 Passive Alarms Active AlarmsAlarms and the Critical Failure Relay Viewing and Clearing Alarms Total Powered Time Viewing CPU DiagnosticsSynopsis MMM DD Hhmm Synopsis Any 127 characters Temperature Diagnostics CPU UsageRAM Total RAM Available Viewing the System Log Viewing and Clearing the System Log Viewing Product Information Resetting the Device Loading Factory Default ConfigurationRS900 v2, 40-00-0066, RS900 v2 ROS 244 RS400 Using the CLI Shell Summary Of CLI Commands available in ROSEntering and Leaving the Shell Viewing Files Getting Help for a CommandListing files Pinging a Remote Device Viewing and Clearing Log FilesTracing Events Enabling Trace Displaying Trace settings Starting Trace Executing Commands Remotely Through RSHViewing Dhcp Learned Information Resetting the Device Upgrading Firmware and Managing Configurations Upgrading Firmware using XModemUpgrading Firmware 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 XModem Capturing ConfigurationsCapturing Configurations with Tftp Getting Started Using SQL CommandsFinding the Correct Table 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 Module Name Standard MIBsGroups Supported Proprietary MIB Module Name RuggedCom proprietary MIBs Appendix B Snmp Trap Summary TcpInSegs IfInErrorsIfInOctets IfInUcastPkts TcpRetransSegs UdpInErrorsUdpInDatagrams UdpNoPorts EtherStatsMulticastPkts EtherStatsCRCAlignErrorsEtherStatsUndersizePkts EtherStatsOversizePkts Dot1dBasePortMtuExceededDiscards Dot1dBasePortDelayExceededDiscardsDot1dTpPortInFrames Dot1dTpPortOutFrames IfHCOutBroadcastPkts RcDeviceStsTemperature 0x040x03 RequestResponse 0x10 Modbus Memory Map AlarmsPage Serial Cmd TextUint16 Uint32 Read Data from device using PortCmd AlarmPerforming write actions on the device using PortCmd PSStatusCmd See ROS Read Power Supply Status from device using PSStatusCmd See Lldp Msti Tagging 169

RuggedCom RS400 manual Problem Six

Models: RS400

Multicast Filtering

Problem Six