Lab 42 InterVLAN Routing with an Internal Route Processor and.docx
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Lab42InterVLANRoutingwithanInternalRouteProcessorand
Lab4-2Inter-VLANRoutingwithanInternalRouteProcessorand
MonitoringCEFFunctions
TopologyDiagram
Objective
ThislabroutesbetweenVLANsusinga3560switchwithaninternalroute
processorusingCiscoExpressForwarding（CEF）.
Scenario
Thecurrentnetworkequipmentincludesa3560distributionlayerswitchand
two2960accesslayerswitches.Thenetworkissegmentedintothreefunctional
subnetsusingVLANsforbetternetworkmanagement.TheVLANsinclude
Finance,Engineering,andasubnetforequipmentmanagement,whichisthe
defaultmanagementVLAN,VLAN1.AfterVTPandtrunkinghavebeen
configuredfortheswitches,SwitchedVirtualInterfaces（SVI）areusedonthe
distributionlayerswitchtoroutebetweentheseVLANs,givingfullconnectivity
totheinternalnetwork.
2-13CCNP:
BuildingMultilayerSwitchedNetworksv5.0-Lab4-2Copyright©2006,CiscoSystems,Inc
Step1
Poweruptheswitchesandusethestandardprocessforestablishinga
HyperTerminalconsoleconnectionfromaworkstationtoeachswitchinyour
pod.Ifyouareremotelyaccessingyourequipment,followyourteacher’s
instructions.
RemoveallVLANinformationandconfigurationsthatwerepreviouslyentered
intoyourswitches.（RefertoLab2.0aor2.0bifneeded.）
Step2
Cablethelabaccordingtothediagram.Configurethehostname,password,
andtelnetaccessoneachswitch.
Thefollowingisasampleconfigurationforthe2960switchALS1:
Switch#configureterminal
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
Switch（config）#hostnameALS1
ALS1（config）#enablesecretcisco
ALS1（config）#linevty015
ALS1（config-line）#passwordcisco
ALS1（config-line）#login
ALS1（config-line）#end
Thefollowingisasampleconfigurationforthe2960switchALS2:
Switch#configureterminal
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
Switch（config）#hostnameALS2
ALS2（config）#enablesecretcisco
ALS2（config）#linevty015
ALS2（config-line）#passwordcisco
ALS2（config-line）#login
ALS2（config-line）#end
Thefollowingisasampleconfigurationforthe3560switchDLS1:
Switch#configureterminal
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
Switch（config）#hostnameDLS1
DLS1（config）#enablesecretcisco
DLS1（config）#linevty015
DLS1（config-line）#passwordcisco
DLS1（config-line）#login
DLS1（config-line）#end
ConfiguremanagementIPaddressesonVLAN1forallthreeswitches
accordingtothediagram.
Thefollowingisasampleconfigurationforthe2960switchALS1:
ALS1#configureterminal
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
ALS1（config）#interfacevlan1
3-13CCNP:
BuildingMultilayerSwitchedNetworksv5.0-Lab4-2Copyright©2006,CiscoSystems,Inc
ALS1（config-if）#ipaddress172.16.1.101255.255.255.0
ALS1（config-if）#noshutdown
ALS1（config-if）#exit
Thefollowingisasampleconfigurationforthe2960switchALS2:
ALS2#configureterminal
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
ALS2（config）#interfacevlan1
ALS2（config-if）#ipaddress172.16.1.102255.255.255.0
ALS2（config-if）#noshutdown
ALS2（config-if）#exit
Thefollowingisasampleconfigurationforthe3560switchDLS1:
DLS1#configureterminal
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
DLS1（config）#interfacevlan1
DLS1（config-if）#ipaddress172.16.1.1255.255.255.0
DLS1（config-if）#noshutdown
DLS1（config-if）#exit
Configuredefaultgatewaysontheaccesslayerswitches.Thedistributionlayer
switchwillnotuseadefaultgateway,becauseitactsasaLayer3device.The
accesslayerswitchesactasLayer2devicesandneedadefaultgatewayto
sendtrafficoffofthelocalsubnetforthemanagementVLAN.
Thefollowingisasampleconfigurationforthe2960switchALS1:
ALS1#configureterminal
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
ALS1（config）#ipdefault-gateway172.16.1.1
ALS1（config-line）#end
Thefollowingisasampleconfigurationforthe2960switchALS2:
ALS2#configureterminal
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
ALS2（config）#ipdefault-gateway172.16.1.1
ALS2（config-line）#end
Step3
ConfiguretrunksandEtherChannelsbetweenswitches.
TodistributeVLANandVTPinformationbetweentheswitches,trunksare
neededbetweenthethreeswitches.Configurethesetrunksaccordingtothe
diagram.EtherChannelisusedforthesetrunks.EtherChannelallowsyouto
utilizebothFastEthernetinterfacesthatareavailablebetweeneachdevice,
therebydoublingthebandwidth.
ThefollowingisasampleconfigurationforthetrunksandEtherChannelfrom
DLS1toASL1.Theswitchporttrunkencapsulation[isl|dot1q]commandis
usedbecausethisswitchalsosupportsISLencapsulation.
4-13CCNP:
BuildingMultilayerSwitchedNetworksv5.0-Lab4-2Copyright©2006,CiscoSystems,Inc
DLS1#configureterminal
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
DLS1（config）#interfacerangefastethernet0/7-8
DLS1（config-if-range）#switchporttrunkencapsulationdot1q
DLS1（config-if-range）#switchportmodetrunk
DLS1（config-if-range）#channel-group1modedesirable
Creatingaport-channelinterfacePort-channel1
ThefollowingisasampleconfigurationforthetrunksandEtherChannelfrom
DLS1toASL2:
DLS1#configureterminal
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
DLS1（config）#interfacerangefastethernet0/9-10
DLS1（config-if-range）#switchporttrunkencapsulationdot1q
DLS1（config-if-range）#switchportmodetrunk
DLS1（config-if-range）#channel-group2modedesirable
Creatingaport-channelinterfacePort-channel2
ThefollowingisasampleconfigurationforthetrunksandEtherChannel
betweenALS1andDLS1,andforthetrunksandEtherChannelbetweenALS1
andALS2:
ALS1#configureterminal
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
ALS1（config）#interfacerangefastethernet0/11-12
ALS1（config-if-range）#switchportmodetrunk
ALS1（config-if-range）#channel-group1modedesirable
Creatingaport-channelinterfacePort-channel1
ALS1（config-if-range）#exit
ALS1（config）#interfacerangefastethernet0/7-8
ALS1（config-if-range）#switchportmodetrunk
ALS1（config-if-range）#channel-group2modedesirable
Creatingaport-channelinterfacePort-channel2
ThefollowingisasampleconfigurationforthetrunksandEtherChannel
betweenALS2andDLS1,andforthetrunksandEtherChannelbetweenALS2
andALS1.
ALS2#configureterminal
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
ALS2（config）#interfacerangefastethernet0/11-12
ALS2（config-if-range）#switchportmodetrunk
ALS2（config-if-range）#channel-group1modedesirable
Creatingaport-channelinterfacePort-channel1
ALS2（config-if-range）#exit
ALS1（config）#interfacerangefastethernet0/7-8
ALS1（config-if-range）#switchportmodetrunk
ALS1（config-if-range）#channel-group2modedesirable
Creatingaport-channelinterfacePort-channel2
5-13CCNP:
BuildingMultilayerSwitchedNetworksv5.0-Lab4-2Copyright©2006,CiscoSystems,Inc
VerifytrunkingbetweenDLS1,ALS1,andALS2usingtheshowinterface
trunkcommandonallswitches.
DLS1#showinterfacetrunk
PortModeEncapsulationStatusNativevlan
Po1on802.1qtrunking1
Po2on802.1qtrunking1
PortVlansallowedontrunk
Po11-4094
Po21-4094
PortVlansallowedandactiveinmanagementdomain
Po11
Po21
PortVlansinspanningtreeforwardingstateandnotpruned
Po11
Po21
Usetheshowetherchannelsummarycommandoneachswitchtoverifythe
EtherChannels.
ThefollowingissampleoutputfromALS1.NoticethetwoEtherChannelsonthe
accesslayerswitches.
ALS1#showetherchannelsummary
Flags:
D-downP-inport-channel
I-stand-alones-suspended
H-Hot-standby（LACPonly）
R-Layer3S-Layer2
U-inusef-failedtoallocateaggregator
u-unsuitableforbundling
w-waitingtobeaggregated
d-defaultport
Numberofchannel-groupsinuse:
2
Numberofaggregators:
2
GroupPort-channelProtocolPorts
------+-------------+-----------+---------------------------------------------
1Po1（SU）PAgPFa0/11（P）Fa0/12（P）
2Po2（SU）PAgPFa0/7（P）Fa0/8（P）
1.Whichportsareusedforchannelgroup2?
Step4
ChangetheVTPmodeofALS1andALS2toclient.
ALS1#configureterminal
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
6-13CCNP:
BuildingMultilayerSwitchedNetworksv5.0-Lab4-2Copyright©2006,CiscoSystems,Inc
ALS1（config）#vtpmodeclient
SettingdevicetoVTPCLIENTmode.
ALS1（config）#end
ALS2#configureterminal
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
ALS2（config）#vtpmodeclient
SettingdevicetoVTPCLIENTmode.
ALS2（config）#end
VerifytheVTPchangeswiththeshowvtpstatuscommand.
ALS2#showvtpstatus
VTPVersion:
2
ConfigurationRevision:
0
MaximumVLANssupportedlocally:
1005
NumberofexistingVLANs:
5
VTPOperatingMode:
Client
VTPDomainName:
VTPPruningMode:
Disabled
VTPV2Mode:
Disabled
VTPTrapsGeneration:
Disabled
MD5digest:
0xC80xAB0x3C0x3B0xAB0xDD0x340xCF
Configurationlastmodifiedby0.0.0.0at3-1-9315:
47:
34
2.HowmanyVLANscanbesupportedlocallyonthe2960switch?
Step5
CreatetheVTPdomainonDLS1andcreateVLANS100and200forthe
domain.
DLS1#configureterminal
Enterconfigurationcommands,oneperline.EndwithCNTL/Z.
DLS1（config）#vtpdomainSWPOD
DLS1（config）#vlan100
DLS1（config-vlan）#nameFinance
DLS1（config-vlan）#exit
DLS1（config）#vlan200
DLS1（config-vlan）#nameEngineering
DLS1（config-vlan）#end
VerifyVTPinformationthroughoutthedomainusingtheshowvlanandshow
vtpstatuscommands.
3.HowmanyexistingVLANsare
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