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Allied Telesis C613-02013-00 manual Layer 3 Switching, Internet Protocol IP, Chapter

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Page 61

Layer 3 Switching

61

Chapter 5

Layer 3 Switching

The Rapier switch provides Layer 3 switching and routing over VLANs. Once a VLAN has been created (see “Virtual LANs” on page 35), the VLAN name can be used wherever a logical interface is required in commands for configuring routing protocols.

VLAN names are of the form:

VLAN-vlanname

or

VLANn

where vlanname is the manager-assigned name of the VLAN, and n is the VLAN identifier (VID).

For example, if a VLAN is created using the command:

CREATE VLAN=admin VID=11

then the following names can be used to identify the VLAN in routing commands:

vlan-admin

vlan11

The following sections illustrate the use of VLANs for IP, RIP, IPX, AppleTalk and RSVP. For a complete description of all the protocols supported by the switch, see the Rapier Switch Software Reference.

Internet Protocol (IP)

The switch performs IP routing at wire speed between VLANs. To add the admin VLAN as an IP interface, use either of the following commands:

ADD IP INTERFACE=vlan-admin

ADD IP INTERFACE=vlan11

The command:

SHOW IP INTERFACE

displays the interfaces enabled for IP routing (Figure 18 on page 62).

Rapier Switch Software Release 2.2.1 C613-02013-00 Rev A

Image 61

Allied Telesis C613-02013-00 manual Layer 3 Switching, Internet Protocol IP, Chapter

Contents

USER GUIDE RAPIER SWITCHAll trademarks are the property of their respective owners Rapier Switch User Guide Document Number C613-02013-00 REV ACHAPTER 3 Operating the Switch ContentsCHAPTER 4 Layer 2 Switching IntroductionDocumentation Roadmap CHAPTER 5 Layer 3 SwitchingIntroduction Why Read This User Guide?Chapter Technical support Where To Find More InformationSwitching Features What Can the Rapier Switch Do?Routing Features See “Enable AT-RPFL3Upgrade Feature Licence” on page Advanced Feature Licence AT-RPFL3UpgradeOptional Features Command Line Interface Simple SwitchingGetting Started ChapterEntering Commands Giving the Switch an IP AddressLogging In Enabling the GUI Enable AT-RPFL3Upgrade Feature LicenceStarting the GUI Graphical User InterfaceConfiguring Using help modeNavigating Changing your password TroubleshootingMonitoring ExitingUser Privileges Operating the SwitchFile Subsystem ChapterFigure 3 Example output from the SHOW FILE command Online CLI HelpSaving Configuration Entered with the GUI Configuration ScriptsEditor Saving Configuration Entered with the CLIInstall Information Figure 6 Example output from the SHOW INSTALL command OFFICER privilegeReleases and Patches into the Switch To install a compressed release Example Install Software Upgrade for Rapier SwitchSoftware Reference SNMP and MIBswhere interface is the name of an interface, such as vlan11 Switch Ports Layer 2 SwitchingEnabling and Disabling Switch Ports ChapterFigure 8 Example output from the SHOW SWITCH PORT command To display information about switch ports, use the commandTable 3 Parameters in the output of the SHOW SWITCH PORT command ParameterLayer 2 Switching Autonegotiation of Port Speed and Duplex ModeTable 3 Parameters in the output of the SHOW SWITCH PORT command Parameter10/100 Ethernet switch ports Port TrunkingTable 4 Autonegotiation preferences for Ethernet ports PreferenceTo display information about trunks on the switch, use the command Packet Storm Protection SHOW SWITCH PORT=port-list Port MirroringSET SWITCH MIRROR=NONEport SET SWITCH PORT=port-listALL MIRROR=NONERXTXBOTHPort security Virtual LANs A VLAN can contain a mixture of VLAN tagged and untagged ports Creating VLANs Without VLAN Tags Static and dynamic VLANsMarketing VLAN Switch Training VLAN Figure 10 Example output from the SHOW VLAN command Layer 2 SwitchingTable 5 Parameters displayed in the output of the SHOW VLAN command ParameterVLAN Tagging VLANs to be used with VLAN tags are created and destroyed in the same way as VLANs with only untagged ports, by using the commands Figure 11 Tagged VLANs Summary of VLAN Tagging RulesGeneric VLAN Registration Protocol GVRP Layer 2 Switching ProcessThe Ingress Rules The Learning Process The Forwarding Process Layer 2 Filtering SET SWITCH PORT command, or has been dynamically learned The Egress RulesThis parameter is either “static” indicating the filter is a static because it has been added with the LEARN parameter of theFigure 13 Example output from the SHOW SWITCH QOS command Quality of ServicePriority level Spanning Tree Port States Spanning Tree Protocol STPENABLE STP=stpnameALL DISABLE STP=stpnameALL Configuring STPSHOW STP PORT=port-list ADD STP=stpname VLAN=vlanname2..4094To change the STP priority value, use the command Table 10 Parameters in the output of the SHOW STP command Figure 14 Example output from the SHOW STP commandParameter MeaningForward Delay To display STP port information, use the command To restore default port pathcost and priority, use the commandFigure 15 Example output from the SHOW STP PORT command ParameterFigure 16 Example output from the SHOW STP COUNTER command Layer 2 SwitchingTable 12 Parameters in the output of the SHOW STP COUNTER command ParameterIGMP Snooping Interfaces to Layer 3 ProtocolsIGMP is enabled and disabled using the commands Triggers Description EventParameters The port number of the port which has just come upPage Internet Protocol IP Layer 3 SwitchingChapter IP Multicasting PIM Sparse ModeRouting Information Protocol RIP Novell IPX Resource Reservation Protocol RSVP AppleTalkADD APPLE PORT INTERFACE=vlan11 SHOW APPLE PORTdisplays information about the interfaces enabled for RSVP Figure The commandLayer 3 Switching Figure 22 Example output from the SHOW RSVP INTERFACE command