Zte ZXR10 8900 Series User manual

ZXR108900Series
10GigabitRoutingSwitch
UserManual(BasicCongurationVolume)
Version2.8.02.C
ZTECORPORATION
ZTEPlaza,KejiRoadSouth,
Hi-TechIndustrialPark,
NanshanDistrict,Shenzhen,
P .R.China
518057
Tel:[phone]
Fax:[phone]
URL:http://ensupport.zte.com.cn
E-mail:[email protected]

LEGALINFORMATION
Copyright©2006ZTECORPORATION.
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Allcompany,brandandproductnamesaretradeorservicemarks,orregisteredtradeorservicemarks,ofZTECORPORATION
oroftheirrespectiveowners.
Thisdocumentisprovided“asis”,andallexpress,implied,orstatutorywarranties,representationsorconditionsaredis-
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informationcontainedherein.
ZTECORPORATIONoritslicensorsmayhavecurrentorpendingintellectualpropertyrightsorapplicationscoveringthesubject
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theuserofthisdocumentshallnotacquireanylicensetothesubjectmatterherein.
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UsersmayvisitZTEtechnicalsupportwebsitehttp://ensupport.zte.com.cntoinquirerelatedinformation.
TheultimaterighttointerpretthisproductresidesinZTECORPORATION.
RevisionHistory
RevisionNo.RevisionDateRevisionReason
R1.0July.31,2009FirstRelease
SerialNumber:sjzl20093837

Contents
AboutThisManual..............................................i
SafetyInstructions............................................1
SafetyIntroduction.........................................................1
SafetyDescription..........................................................1
UsageandOperation.........................................3
CongurationModes.......................................................3
ConguringSerialInterfaceConnection.........................4
ConguringTelnetConnection......................................6
ConguringSSHConnection.........................................9
ConguringSNMPConnection.....................................11
CommandModes...........................................................12
CommandLineUsage....................................................14
OnlineHelp...............................................................14
CommandAbbreviation..............................................15
CommandHistory......................................................15
SystemManagement.......................................17
FileSystemManagement................................................17
FileSystemOverview.................................................17
OperatingFileSystemManagement.............................18
FTP/TFTPConnectionConguration..................................19
ConguringaSwitchasFTPClientTerminal..................20
ConguringaSwitchasTFTPClientTerminal.................21
FileBackupandRestoration............................................23
BackingupCongurationFile......................................23
RestoringCongurationFile........................................23
BackingupSystemSoftwareVersion............................23
RestoringSystemSoftwareVersion..............................24
StstemSoftwareVersionUpgrade....................................24
UpgradingVersionatAbnormality................................24
UpgradingVersionatNormality...................................26
UpgradingVersionwithoutInterruptingSystem.............27

SystemParameterConguration......................................28
ConguringaHostname.............................................28
ConguringaWelcomeMessage..................................29
ConguringaPasswordofPrivilegedMode....................29
ConguringTelnetUsernameandPassword...................29
ConguringSystemTime............................................30
ConguringVersionLoadSelection...............................30
SavingCommandLogFile...........................................31
ConguringSavingTimeofAlarmLog..........................32
SystemInformationView................................................33
ViewingHardwareandSoftwareVersions......................33
ViewingCurrentRunningCongurationInforma-
tion.................................................................33
ViewingCPUInformation............................................34
ViewingBootInformationofCurrentRunning
Board...............................................................34
ViewingSystemDiagnosisInformation.........................34
CLIPrivilegeClassication..............................37
CLIPrivilegeClassicationOverview.................................37
ConguringCLIPrivilegeClassication.............................38
ConguringT elnetUser..............................................38
ConguringanEnablingPassword................................39
ConguringPrivilegeLevelofaCommand.....................40
CLIPrivilegeClassicationCongurationExample..............42
MaintenanceandDiagnosisofCLIPrivilege
Classication.........................................................42
PortConguration...........................................43
PortBasicConguration.................................................43
PortBasicCongurationOverview................................43
EnablinganEthernetPort...........................................44
EnablingAuto-Negotiation..........................................44
ConguringDuplexMode............................................45
ConguringEthernetPortRate....................................45
ConguringTrafcControl..........................................46
AllowingJumbo-Frame...............................................46
ConguringBroadcastStormSuppression.....................47
ConguringMulticastSuppression................................47
ConguringUnknownUnicastSuppression....................48
EnablingFastPortDetectionFunction...........................48
ConguringFEFIFunction...........................................49

ConguringTCPRateLimit..........................................49
ConguringSwitchofOpticalorElectricalPort...............49
ViewingPortInformation............................................49
DiagnosingandT estingLink........................................51
PortMirroringConguration............................................52
PortMirroringOverview..............................................52
ConguringPortMirroring...........................................52
PortMirroringCongurationExample...........................52
ERSPANConguration....................................................54
ERSPANOverview......................................................54
ConguringERSPAN.......................................................55
EstablishingOneERSPANSession................................55
AddingSourceorDestinationPorttoSessionEntry.........55
DisplayingSessionDetailsConguredbyUser...............55
ERSPANCongurationExample.......................................55
PortLoopDetectionConguration....................................56
PortLoopDetectionOverview......................................56
ConguringPortLoopDetection...................................56
PortLoopDetectionCongurationExample...................57
NetworkProtocolConguration......................59
IPAddressConguration................................................59
IPAddressOverview..................................................59
ConguringIPAddress...............................................61
IPAddressCongurationExample................................61
ARPConguration..........................................................61
ARPOverview...........................................................61
ConguringARP........................................................62
ARPCongurationExample.........................................62
ARPQueryExample...................................................63
DHCPConguration.........................................65
DHCPOverview.............................................................65
DHCPSnoopingOverview...............................................66
ConguringDHCP..........................................................66
ConguringDHCPServer............................................66
ConguringDHCPRelay..............................................67
ConguringDHCPSnooping........................................67
DHCPCongurationExamples.........................................68
DHCPServerCongurationExample............................68
DHCPRelayCongurationExample..............................69

DHCPSnoopingPreventingFalseDHCPServer
CongurationExample.......................................70
DHCPSnoopingPreventingStaticIPConguration
Example...........................................................70
DHCPMaintenanceandDiagnosis....................................71
VRRPConguration.........................................73
VRRPOverview.............................................................73
ConguringVRRP..........................................................74
VRRPCongurationExamples..........................................74
BasicVRRPCongurationExample...............................74
SymmetricVRRPCongurationExample.......................75
VRRPMaintenanceandDiagnosis.....................................76
ACLConguration............................................77
ACLOverview...............................................................77
NP-BasedACLOverview.................................................78
ConguringACLs...........................................................79
DeningACLs...........................................................79
DeningStandardACL.......................................79
DeningExtendedACL......................................80
DeningLayer2ACL.........................................81
DeningHybridACL..........................................81
DeningStandardIPv6ACL................................82
DeningExtendedIPv6ACL...............................82
DeningCustomizedACL...................................83
ConguringTimeRange.............................................83
ApplyingACLtoPhysicalPort......................................84
ApplyingACLtoVirtualPort........................................85
ConguringEventLinkageACLRule.................................85
ApplyingNP-BasedACL..................................................87
ACLCongurationExample.............................................88
ACLMaintenanceandDiagnosis.......................................89
QoSConguration...........................................91
QoSOverview...............................................................91
TrafcClassication...................................................92
TrafcMonitoring.......................................................92
TrafcShaping..........................................................93
QueueSchedulingandDefault802.1p..........................93
PolicyRouting...........................................................94
PriorityMark.............................................................94
TrafcMirroring.........................................................95

TrafcStatistics.........................................................95
Queue-BasedBandwidthUpperandLower
Threshold.........................................................95
HQoS.......................................................................95
ConguringQoS............................................................96
ConguringTrafcMonitoring......................................96
ConguringTrafcRateLimit......................................97
ConguringLayer3RateLimit....................................97
ConguringQueueScheduling.....................................98
ConguringPolicyRouting..........................................99
ConguringPriorityMark............................................99
ConguringT ailDiscarding........................................100
ConguringCOSDiscardingPriorityMapping...............100
ConguringCOSLocalPriorityMapping......................101
ConguringDSCPPriorityMapping.............................101
ConguringTrafcMirroring......................................102
ConguringTrafcStatistics......................................102
ConguringQueue-BasedBandwidthUpperandLower
Threshold.......................................................103
ConguringHQoS........................................................103
ConguringTrafcClass...........................................103
ConguringWREDPolicy..........................................104
ConguringWFQPolicy............................................105
ConguringTrafcShaping.......................................105
ConguringHQoSPolicy...........................................106
QoSCongurationExamples.........................................109
TypicalQoSCongurationExample............................109
PolicyRoutingCongurationExample.........................111
QoSMaintenanceandDiagnosis....................................111
DOT1xConguration.....................................113
DOT1xOverview.........................................................113
ConguringDOT1x......................................................114
ConguringAAA......................................................114
ConguringDOT1xParameters..................................115
ConguringLocalAuthenticationUser.........................115
ManagingDOT1xAuthenticationUser.........................116
DOT1xCongurationExamples......................................117
Dot1xRadiusAuthenticationApplication.....................117
Dot1xRelayAuthenticationApplication.......................118
Dot1xLocalAuthenticationApplication.......................119

DOT1xMaintenanceandDiagnosis.................................120
ClusterManagementConguration...............121
ClusterManagementOverview......................................121
ConguringClusterManagement...................................123
EnablingZDP..........................................................123
EnablingZTP...........................................................124
SettingupaCluster.................................................124
MaintainingaCluster...............................................125
ConguringClusterOperationCommands...................125
ClusterManagementCongurationExample....................126
ClusterManagementMaintenanceandDiagnosis.............126
NetworkManagementConguration.............129
NTPConguration........................................................129
NTPOverview.........................................................129
ConguringNTP......................................................129
NTPCongurationExample.......................................130
RADIUSConguration..................................................130
RadiusOverview......................................................130
ConguringaRADIUSAccountingGroup.....................130
ConguringaRADIUSAuthenticationGroup................131
ConguringRADIUSParameters................................131
ViewingRADIUSInformation.....................................132
RADIUSCongurationExample.................................132
SNMPConguration.....................................................133
SNMPOverview.......................................................133
ConguringSNMP....................................................133
SNMPCongurationExample....................................134
RMONConguration.....................................................134
RMONOverview......................................................134
ConguringRMON...................................................135
RMONCongurationExample....................................135
SysLogConguration...................................................136
SysLogOverview.....................................................136
ConguringSysLog..................................................137
SysLogCongurationExample...................................137
LLDPConguration......................................................138
LLDPOverview........................................................138
ConguringLLDP.....................................................139
LLDPCongurationExample.....................................139
IPTVConguration........................................141

IPTVOverview............................................................141
ConguringIPTV.........................................................141
ConguringIPTVGlobalParameters...........................141
ConguringGlobalParametersofIPTVPreview............142
ConguringIPTVCDRParameters..............................142
ConguringIPTVChannels........................................143
ConguringIPTVServicePackage..............................143
ConguringIPTVPreviewTemplate............................144
ConguringCAC......................................................144
ConguringIPTVFastLeave......................................145
ManagingIPTVUsers...............................................145
IPTVCongurationExample..........................................145
IPTVMaintenanceandDiagnosis....................................146
VBASConguration.......................................149
VBASOverview...........................................................149
ConguringVBAS........................................................149
VBASCongurationExample.........................................150
VBASMaintenanceandDiagnosis..................................150
CPUAttackProtectionConguration.............151
CPUAttackProtectionOverview.....................................151
CPUAttackProtectionPrinciple......................................152
ConguringCPUAttackProtection..................................152
ConguringIPv4ProtocolProtection...........................152
ConguringIPv6ProtocolProtection...........................153
ConguringLayer2ProtocolProtection.......................154
CPUAttackProtectionCongurationExamples.................154
URPFConguration.......................................157
URPFOverview............................................................157
ConguringURPF.........................................................158
URPFCongurationExample.........................................159
URPFMaintenanceandDiagnosis...................................160
IPFIXConguration......................................161
IPFIXOverview...........................................................161
IPFIXOverview.......................................................161
Sampling................................................................162
TimeoutManagement...............................................162
DataOutput............................................................163
ConguringIPFIX........................................................163
BasicConguration..................................................163

Enabling/DisablingIPFIXModule.......................163
SettingIPFIXMemoryEntries...........................163
SettingAgingTimeofActiveStream..................163
SettingAgingTimeofInactiveStream...............164
SettingSamplingRate.....................................164
SettingNMServerAddressandL4PortID..........164
SettingSourceAddressforNetworkDevice
SendingPackets..................................164
SettingT emplateRefreshRate..........................164
ConguringTOPN............................................165
TemplateConguration.............................................165
SettingT emplate.............................................165
SettingDataFieldContainedinT emplate
Packet................................................165
DeletingT emplate...........................................165
RunningTemplate...........................................165
IPFIXCongurationExample.........................................166
IPFIXMaintenanceandDiagnosis..................................166
Figures..........................................................169
Tables...........................................................171
ListofGlossary..............................................173

AboutThisManual
PurposeThismanualprovidesproceduresandguidelinesthatsupportthe
operationofZXR108900Series(V2.8.02.C)10GigabitRouting
Switch.
Intended
Audience
Thismanualisintendedforengineersandtechnicianswhoperform
operationactivitiesonZXR108900Series(V2.8.02.C)10Gigabit
RoutingSwitch.
WhatIsinThis
Manual
Thismanualcontainsthefollowingchapters:
TABLE1CHAPTERSUMMARY
ChapterSummary
Chapter1Safety
Instructions
Thischapterdescribesthesafety
instructionsandsigns
Chapter2Usageand
Operation
ThischapterdescribesZXR10
8912/8908/8905/8902conguration
modeincommonuse
Chapter3System
Management
Thischapterintroduceslesystem
management,lebackupandrestoration,
softwareversionupgrade
Chapter4CLIPrivilege
Classication
ThischapterdescribesCLIprivilege
classicationandcongurationonZXR10
8912/8908/8905/8902
Chapter5Port
Conguration
Thischapterdescribestheconguration
ofZXR108912/8908/8905/8902port
parametersandportmirroringfunction
Chapter6Network
ProtocolConguration
ThischapterdescribesIPaddress
congurationandARPconguration
Chapter7DHCP
Conguration
ThischapterintroducesDHCPand
relatedcongurationonZXR10
8912/8908/8905/8902
Chapter8VRRP
Conguration
ThischapterdescribesVirtualRouter
RedundancyProtocol(VRRP)onZXR10
8912/8908/8905/8902
Chapter9ACL
Conguration
ThischapterintroducesACLand
relatedcongurationonZXR10
8912/8908/8905/8902
Chapter10QoS
Conguration
ThischapterintroducesQoSand
relatedcongurationonZXR10
8912/8908/8905/8902
Chapter11DOT1x
Authentication
Conguration
ThischapterintroducesDOT1x
AuthenticationcongurationonZXR10
8912/8908/8905/8902
CondentialandProprietaryInformationofZTECORPORATIONi

ZXR108900SeriesUserManual(BasicCongurationVolume)
ChapterSummary
Chapter12Cluster
Management
Conguration
Thischapterintroducescluster
managementcongurationonZXR10
8912/8908/8905/8902
Chapter13Network
Management
Conguration
ThischapterintroducesNetwork
managementcongurationonZXR10
8912/8908/8905/8902
Chapter14IPTV
Conguration
ThischapterdescribesIPTVconguration,
maintenanceanddiagnosisforZXR10
8912/8908/8905/8902
Chapter15VBAS
Conguration
ThischapterdescribesVBASonZXR10
8912/8908/8905/8902
Chapter16CPUAttack
ProtectionConguration
Thischapterdescribesconguration
forCPUattackprotectiononZXR10
8912/8908/8905/8902
Chapter17URPF
Conguration
ThischapterintroducesURPF
(UnicastReversePathForwarding)
andrelatedcongurationonZXR10
8912/8908/8905/8902
Chapter18UDLD
Conguration
ThischapterdescribesUDLDandcongu-
rationonZXR108912/8908/8905/8902
Related
Documentation
Thefollowingdocumentationisrelatedtothismanual:
�ZXR108900Series(V2.8.02.C)10GigabitRoutingSwitch
HardwareInstallationManual
�ZXR108900Series(V2.8.02.C)10GigabitRoutingSwitch
HardwareManual
�ZXR108900Series(V2.8.02.C)10GigabitRoutingSwitchUser
Manual(BasicCongurationVolume)
�ZXR108900Series(V2.8.02.C)10GigabitRoutingSwitchUser
Manual(EthernetSwitchingVolume)
�ZXR108900Series(V2.8.02.C)10GigabitRoutingSwitchUser
Manual(IPv4RoutingVolume)
�ZXR108900Series(V2.8.02.C)10GigabitRoutingSwitchUser
Manual(MPLSVolume)
�ZXR108900Series(V2.8.02.C)10GigabitRoutingSwitchUser
Manual(IPv6Volume)
iiCondentialandProprietaryInformationofZTECORPORATION

Chapter1
SafetyInstructions
TableofContents
SafetyIntroduction.............................................................1
SafetyDescription..............................................................1
SafetyIntroduction
Inordertooperatetheequipmentinaproperway,followthese
instructions:
�Onlyqualiedprofessionalsareallowedtoperforminstallation,
operationandmaintenanceduetothehightemperatureand
highvoltageoftheequipment.
�Observethelocalsafetycodesandrelevantoperationpro-
ceduresduringequipmentinstallation,operationandmainte-
nancetopreventpersonalinjuryorequipmentdamage.Safety
precautionsintroducedinthismanualaresupplementarytothe
localsafetycodes.
�ZTEbearsnoresponsibilityincaseofuniversalsafetyoper-
ationrequirementsviolationandsafetystandardsviolationin
designing,manufacturingandequipmentusage.
SafetyDescription
ContentsdeservingspecialattentionduringcongurationofZXR10
8900seriesswitchareexplainedinthefollowingtable.
ConventionMeaning
NoteProvidesadditionalinformation
ImportantProvidesgreatsignicanceorconsequence
ResultProvidesconsequenceofactions
ExampleProvidesinstanceillustration
CondentialandProprietaryInformationofZTECORPORATION1

ZXR108900SeriesUserManual(BasicCongurationVolume)
Thispageisintentionallyblank.
2CondentialandProprietaryInformationofZTECORPORATION

Chapter2
UsageandOperation
TableofContents
CongurationModes...........................................................3
CommandModes...............................................................12
CommandLineUsage........................................................14
ConfigurationModes
ZXR108900seriesswitchprovidesmultiplecongurationmodes,
asshowninFigure1.Usercanselectappropriateconguration
modeaccordingtotheconnectednetwork.
FIGURE1CONFIGURATIONMODES
�Serialinterfaceconnectionconguration
�TELNETconnectionconguration
�SSHconnectionconguration
�FTP/TFTPconnectionconguration
�SNMPconnectionconguration
CondentialandProprietaryInformationofZTECORPORATION3

ZXR108900SeriesUserManual(BasicCongurationVolume)
ConfiguringSerialInterface
Connection
Serialinterfaceconnectioncongurationistheprinciplecongu-
rationmodeofZXR10seriesswitch.
SerialcongurationcableisdeliveredwithZXR108900series
switch.OneendisDB9serialinterface(connectingtocomputer
serialinterface).TheotherendisRJ45interface(connecting
toConsoleinterfaceinMPboardofZXR108900seriesswitch).
SerialconnectioncongurationadoptsVT100terminalmode,
usingtheHyperT erminaltoolprovidedbyWindowsOS.
Tocongureserialinterfaceconnection,performthefollowing
steps.
1.ConnectthecomputerserialporttoConsoleportofZXR10
8900seriesswitchwithserialcongurationcable.
2.OpentheHyperTerminal,asshowninFigure2.Inputthecon-
nectionname,suchasZXR10,andselectthedesiredicon.
FIGURE2HYPERTERMINALCONFIGURATION1
3.ClickOk.Awindowappears,asshowninFigure3.Select
COM1asCOMportintheConnectusingeld.
4CondentialandProprietaryInformationofZTECORPORATION

Chapter2UsageandOperation
FIGURE3HYPERTERMINALCONFIGURATION2
4.ClickOk.COMportattributesetupwindowappears,as
showninFigure4.Fillintheparametervalues,asshownin
Table3.
FIGURE4HYPERTERMINALCONFIGURATION3
CondentialandProprietaryInformationofZTECORPORATION5

ZXR108900SeriesUserManual(BasicCongurationVolume)
TABLE3PARAMETERVALUES
ParametersValues
Bitspersecond115200
Databit8
ParityNone
Stopbit1
FlowcontrolNone
Note:
Iftheswitchfailstobeconnected,setthevalueofbitsper
secondto9600.
5.ClickOktocompletesetting.ZXR108900seriesswitchcon-
gurationwindowappears.Atthispointstartcommandoper-
ation.
Result:Serialinterfaceconnectionhasbeencongured.
ConfiguringTelnetConnection
ZXR108900seriesswitchcanbeconguredbyTelnetlocallyor
remotely.Telnetcongurationistheprincipalmodethatisused
tocongureZXR108900seriesswitchremotely.
Usernameandpasswordmustbesetintheswitchtopreventillegal
usersfromaccessingtheswitchbyTelnet.Onlytheuserswith
validusernameandpasswordcouldlogintothedevice.Usethe
followingcommandtocongureusernameandpassword.
CommandFunction
ZXR10(config)#username<username>password
<password>
Thisconguresusernameand
passwordofT elnetlogin
Conguring
TelnetConnection
through
ManagementPort
ToconguretelnetconnectionthroughmanagementEthernetin-
terface(10/100Base-TX)onmainboard,performthefollowing
steps:
1.CongureIPaddressofmanagementportthroughConsole
port.
2.CongureusernameandpasswordofT elnetloginthroughCon-
soleport.
3.Usestraight-throughEthernetcabletoconnecthostnetwork
interfaceandswitchmanagementEthernetinterface.
4.SettheIPaddressofthehostthatisapartofthesamenetwork
segmentwiththeswitchmanagementEthernetinterface.
6CondentialandProprietaryInformationofZTECORPORATION

Chapter2UsageandOperation
5.Executetelnetcommandinthehost.InputtheIPaddressof
switchmanagementEthernetport,asshowninFigure5.
FIGURE5RUNNINGTELNET
6.ClickOK.Awindowappears,asshowninFigure6.
FIGURE6TELNETLOGINSCHEMATICDIAGRAM
7.Inputvalidusernameandpasswordtoenterswitchcongura-
tionmode.
Note:
�ZXR108900seriesswitchallowsuptofourT elnetuserslogging
insimultaneously.If“**”appearsafterinputtingusername
andpassword,itindicatesthatthenumberofusersreaches
thelimit,pleaseretrylaterorre-loginafterloggingoutother
users.
�WhenusersperformTelnetcongurationthroughmanagement
portconnectingtotheswitch,theIPaddressofmanagement
portcannotbemodiedordeleted,otherwise,T elnetwillbe
disconnected.
CondentialandProprietaryInformationofZTECORPORATION7

ZXR108900SeriesUserManual(BasicCongurationVolume)
Conguring
TelnetConnection
throughHost
TocongureatelnetconnectiontoaswitchthroughaVLANport,
performthefollowingsteps.
1.CongureIPaddressesofVLANandVLANinterfacethrough
Consoleport.
2.CongureusernameandpasswordofT elnetloginthroughCon-
soleport.
3.ConnectthehostnetworkinterfacetotheEthernetportof
switch.
4.SetIPaddressofhost,enablingthehosttopingtheIPaddress
ofVLANinterfaceintheswitchsuccessfully.
5.Executetelnetcommandinthehost.InputtheIPaddress
ofVLANinterface,logintotheswitch.Forthedetailedproce-
dures,pleaserefertoConguringTelnetConnectionthrough
ManagementPort.
Conguring
TelnetConnection
throughOther
Devices(Suchas
SwitchorRouter)
Toconguretelnetconnectionthroughotherdevices(suchas
switchandrouter),performthefollowingsteps.
1.CongureIPaddressofVLANandVLANinterfacethroughCon-
soleport.
2.CongureusernameandpasswordofT elnetloginthroughCon-
soleport.
3.T akearouterconnectedtoaswitchasanexample,fromwhich,
theIPaddressofVLANinterfacecanbepingedsuccessfully.
4.Runtelnetcommandintherouter .InputtheIPaddressof
VLANinterface,logintotheswitch.Forthedetailedproce-
dures,pleaserefertoConguringTelnetConnectionthrough
ManagementPort.
Note:
WhenusersperformT elnetcongurationthroughVLANinterface
connectingtotheswitch,theIPaddressofVLANandVLANinter-
facecannotbemodiedordeleted,otherwise,Telnetisdiscon-
nected.
Conguring
LimittoTelnet
Connections
ThenumberofTelnetconnectionscanbelimitedbythefollowing
commandcongurationtoenhancesystemsecurityandpractica-
bility.
CommandFunction
ZXR10(config)#Linetelnet<max-link>Thisaddslimittothenumber
(1–16)ofconnectedusers.
ExampleAsshowninFigure7,onePCisconnectedtointerfacegei_1/1.To
telnetswitch,conductthefollowingconguration:
8CondentialandProprietaryInformationofZTECORPORATION