Triggered Updates | Extreme Networks Summit1 specification

ROUTING PROTOCOLS

TRIGGERED UPDATES

Triggered updates occur whenever a router changes the metric for a route, and it is required to send an update message immediately, even if it is not yet time for a regular update message to be sent. This will generally result in faster convergence, but may also result in more RIP-related traffic.

ROUTE ADVERTISEMENT OF VLANS

VLANs that are configured with an IP address, but are configured to not route IP, have their subnets advertised by RIP with a metric of 16 (unreachable). To disable the advertising of a subnet completely, you must unconfigure the IP address for the VLAN using the following command:

unconfig vlan <name> ipaddress

RIP VERSION 1 VERSUS RIP VERSION 2

A new version of RIP, called RIP version 2, expands the functionality of RIP version 1 to include the following:

•Variable-Length Subnet Masks (VLSMs)

•Next-hop addresses

Support for next-hop addresses allows for optimization of routes in certain environments.

•Multicasting

RIP version 2 packets can be multicast instead of being broadcast, reducing the load on hosts that do not support routing protocols.

10-4	SUMMIT SWITCH INSTALLATION AND USER GUIDE

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Extreme Networks Summit1 manual Triggered Updates, Route Advertisement of Vlans, RIP Version 1 Versus RIP Version

Contents

Summit Switch Installation and User Guide Page Contents Installation and Setup Page Virtual Lans Vlans Switch Forwarding Database FDB Quality of Service QOS Routing Protocols IP Multicast Routing Technical Specifications Troubleshooting Figures 10-3 Tables 10-6 Preface Introduction Conventions TerminologyText Conventions Icon Alerts you to Related Publications Preface About the Summit Family of Switches Summit Overview Summit Switch Models Summary of Features 1Summit Switch Port Configurations Switch ModelPort Connections Gigabit Ethernet Ports Fixed Redundant 2Media Types and Distances Standard Media Type Mhz/Km Maximum Rating Distance Port Redundancy Backup ActiveFULL-DUPLEX Load Sharing Spanning Tree Protocol STP IP Multicast Routing Quality of Service QOSIP Unicast Routing Network Configuration Example 2Network configuration using the Summit family of switches Network Configuration Example SUMMIT1 Front View 3Summit1 front view SUMMIT2 Front View 4Summit2 front view SUMMIT3 Front View 5Summit3 front view SUMMIT4 Front View 6Summit4 front view SUMMIT4/FX Front View 7Summit4/FX front view SUMMIT48 Front View 8Summit48 front view Gigabit Ethernet Port Status LEDs Color Indicates10/100Mbps Port Status LEDs Power Socket Redundant Power Supply PortSummit Rear View Serial Number Factory Defaults 4Summit Factory DefaultsDefault Setting MAC Address RIP Summit Overview Determining the Switch Location Installation and SetupFollowing Safety Information Media Types and Distances 1Media Types and Distances Installing the Summit Rack Mounting FREE-STANDING Connecting Equipment to the Console PortStacking the Switch and Other Devices 2Console Connector Pin-Outs Function Pin NumberSummit PC/Terminal Summit Logging in for the First Time Powering on the SwitchChecking the Installation Save Installation and Setup Accessing The Switch Syntax Helper Understanding the Command SyntaxCommand Completion with Syntax Helper Command Shortcuts Abbreviated SyntaxNumerical Ranges Names SymbolDescription Symbols1Command Syntax Symbols Command History LINE-EDITING Keys2Line-Editing Keys Keys Description Command Description Common Commands3Common Commands Switch Configuring Management Access Account Name Access Level Default Accounts4Default Accounts Account name admin cannot be deleted Creating a Management Account Using the Console Interface Methods of Managing the Summit Configuring Switch IP Parameters Using TelnetConnecting to Another Host Using Telnet For more information on DHCP/BOOTP relay, refer to Chapter For example Disconnecting a Telnet Session Disabling Telnet Access IP Host Configuration Commands 5IP Host Configuration Commands Using Extremeware Vista Disabling WEB Access Accessing Switch Agents Supported Mibs6Supported MIBs Description RFC Number Configuring Snmp Settings 7SNMP Configuration Commands 8SNMP Reset and Disable Commands Displaying Snmp SettingsResetting and Disabling Snmp 9Ping Command Parameters Checking Basic ConnectivityPing Traceroute Mtrace Accessing the Switch Configuring Ports Enabling and Disabling Ports Configuring Port Speed and Duplex Setting Turning OFF Autonegotiation for a Gigabit Ethernet Port Port Commands 1Port Commands Chapter Load Sharing Configuring Load Sharing 2Port Combinations for the Summit13Port Combinations for the Summit2 4Port Combinations for the Summit3 5Port Combinations for the Summit4 and Summit4/FX 6Port Combinations for the Summit48 Verifying the Load Sharing Configuration PORT-MIRRORING PORT-MIRRORING Example PORT-MIRRORING Commands7Port-Mirroring Configuration Commands Summit Switch Port Connections Summit Virtual ChassisSummit2 Summit3 Summit48 Extreme Discovery ProtocolSummit4/FX Summit Virtual Chassis Commands 9Summit Virtual Chassis Commands Vlans and Summit Switches Using the Virtual Chassis Configuring Ports Benefits Virtual LANs VLANsOverview of Virtual Lans Types of Vlans PORT-BASED Vlans Sales Switch 2Single port-based Vlan spanning two switches 3Two port-based VLANs spanning two Switches Tagged Vlans Uses of Tagged Vlans = Tagged port Switch = Marketing= Sales Generic Vlan Registration Protocol -4 and Figure 6Network example using Gvrp 1GVRP Commands PROTOCOL-BASED Vlans = IP traffic = All other traffic IPX Vlan Names Precedence of Tagged Packets Over Protocol Filters 2VLAN Configuration Commands Configuring Vlans on the SummitDefault Vlan Etype Llc Snap Vlan Configuration Examples Displaying Vlan Settings Sample output from this command is as follows 3VLAN Delete and Reset Commands Deleting Vlans Switch Forwarding Database FDB FDB ContentsOverview of the FDB FDB Entry Types HOW FDB Entries GET Added Associating a QOS Profile with AN FDB Entry Configuring FDB Entries1FDB Configuration Commands FDB Configuration Examples Displaying FDB Entries 2Removing FDB Entry Commands Removing FDB Entries Spanning Tree Domains Spanning Tree Protocol STPOverview of the Spanning Tree Protocol STP Configurations Defaults Switch a Switch B Switch Y Switch Z Switch M Marketing & Sales Marketing, Sales & Engineering Configuring STP on the Summit 1STP Configuration Commands Stpd Configuration Example Displaying STP Settings Disabling and Resetting STP 2STP Disable and Reset Commands Spanning Tree Protocol STP Building Blocks Quality of Service QoSOverview of Quality of Service QOS Mode Default QOS Profiles Profile Name Priority Minimum Bandwidth Maximum Bandwidth 1Default QoS ProfilesTraffic Groupings 2802.1p Values and Associated QoS Profiles 802.1p Value QoS Profile Ingress Mode Creating and Configuring a QOS Profile Assigning a QOS Profile 3PQM Commands Port Queue Monitor Configuring QOS 4QoS Configuration Commands Sample Ingress Mode QOS Configuration Sample Egress Mode QOS Configuration Resetting QOS Displaying QOS Information IP Unicast Routing Overview of IP Unicast Routing Router Interfaces 1Routing between VLANs Populating the Routing Table Proxy ARP IP Multinetting Bootp works only on the Vlan assigned to the IP protocol Assign the subnet to a physical port IP Unicast Routing Configuring IP Unicast Routing Configuring DHCP/BOOTP Relay Verifying the IP Unicast Routing Configuration Verifying the DHCP/BOOTP Relay Configuration 1Basic IP Commands Disables routing for one or more VLANs 2Route Table Configuration Commands 3ICMP Configuration Commands Routing Configuration Example MyCompany 2Unicast routing configuration example Displaying Router Settings 4Router Show Commands Resetting and Disabling Router Settings 5Router Reset and Disable Commands Routing Protocols Overview RIP Versus Ospf Overview of RIP Routing TableSplit Horizon Poison Reverse RIP Version 1 Versus RIP Version Triggered UpdatesRoute Advertisement of Vlans Areas Overview of OspfLink State Database Area 2Virtual link for stub area 3Virtual link providing redundancy Configuring RIP 1RIP Configuration Commands 10-9 RIP Configuration Example 4RIP configuration example Displaying RIP Settings 2RIP Show Commands Resetting and Disabling RIP 3RIP Reset and Disable Commands Configuring Ospf 4OSPF Configuration Commands Default Minimum Maximum Los Angeles Ospf Configuration ExampleHeadquarters Configuration for ABR1 Following is the configuration for the router labeled ABR1 5OSPF Show Commands Displaying Ospf SettingsConfiguration for IR1 Resetting and Disabling Ospf Settings 6OSPF Reset and Disable Commands 10-20 IP Multicast Routing Configuring IP Multicasting Routing Igmp Overview 1IP Multicast Routing Configuration Commands 2IGMP Configuration Commands Seconds. The default setting is 10 seconds Configuration Example 1IP multicast routing configuration example Displaying IP Multicast Routing Settings 3IP Multicast Routing Show Commands Deleting and Resetting IP Multicast Settings 4IP Multicast Routing Reset and Disable Commands Status Monitoring 1Switch Monitoring CommandsStatus Monitoring and Statistics 12-2 Messages and higher are displayed 12-4 Displays detailed system-related information, including 12-6 Port Statistics Port Errors Port Monitoring Display Keys 2Port Monitoring Display Keys Switch Logging 3Fault Levels Assigned by the Switch4Fault Log Subsystems Level Description Local Logging Logging Commands Remote Logging 5Logging Commands Rmon Rmon Features of the Switch Rmon and the Switch Action High Threshold Event Actions6Event Actions 12-18 Using ExtremeWare Vista Enabling and Disabling WEB Access Setting UP Your Browser Accessing Extremeware Vista Navigating Extremeware Vista Content Frame Task Frame1Multi-Select List Box Key Definitions Selection Type Key Sequence Saving Changes Standalone Buttons Do a GET When Configuring a Vlan Sending Screen Output to Extreme Networks Software Upgrade and Boot Options Downloading a NEW Image Rebooting the Switch Saving Configuration Changes Returning to Factory Defaults Using Tftp to Upload the Configuration Using Tftp to Download the Configuration Boot Option Commands 1Boot Option Commands 14-6 Power Safety InformationImportant Safety Information Power Cord France and Peru only Fuse Connections Lithium Battery Technical Specifications SafetyEnvironmental Requirements Electromagnetic Compatibility Power Supply Protocols Used for AdministrationHeat Dissipation Standards Supported Snmp Troubleshooting Power LED does not light Using the COMMAND-LINE Interface Initial welcome prompt does not display Traps are not received by the Snmp Network Manager Vlans STP Troubleshooting Index Dvmrp EDP Index PQM Rmon Default Index of Commands Ii-Index of Commands Index of Commands-iii