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3Com 4500 26-PORT, 4500 PWR 50-PORT manual To enable port loopback detection, enter the following

Models: 4500 26-PORT 4500 PWR 26-PORT 4500 PWR 50-PORT 4500 50-PORT

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Ethernet Port Configuration Commands 53

loopback-detection interval-time

Parameter

None

Description

Use the loopback-detection enable command to enable port loopback detection. If there is a loopback port found, the switch will put it under control. Use the undo loopback-detection enable command to disable port loopback detection.

Loopback detection of a specified port only functions after port loopback detection is enabled in the System or Ethernet port view. By default, port loopback detection is disabled.

Related commands: display loopback-detection

Example

To enable port loopback detection, enter the following:

<4500>system-view

System View: return to User View with Ctrl+Z.

[4500]loopback-detection enable

[4500]interface ethernet 1/0/1

[4500-Ethernet1/0/1]loopback-detection enable

[4500-Ethernet1/0/1]

Syntax

loopback-detection interval-time time

undo loopback-detection interval-time

View

System View

Parameter

time: Specifies the interval of monitoring external loopback conditions of the port. It ranges from 5 to 300, measured in seconds.

By default, the interval is 30 seconds.

Description

Use the loopback-detectioninterval-timecommand to configure the detection interval for the external loopback condition of each port. Use the undo loopback-detectioninterval-timecommand to restore the default interval.

Related commands: display loopback-detection

Example

To configure the detection interval for the external loopback condition of each port to 10 seconds, enter the following:

<4500>system-view

System View: return to User View with Ctrl+Z.

[4500]loopback-detection interval-time 10

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3Com 4500 26-PORT To enable port loopback detection, enter the following, Related commands display loopback-detection

Contents

3Com Switch 4500 Family 3Com Corporation Campus Drive Marlborough, MA USA Contents Rstp Configuration Commands Igmp Snooping Configuration Commands184 QoS Configuration Commands List 190 Stack Commands 207Accessing the Bootrom Interface 455 Boot Menu Page Alphabetical Listing of Commands Page Page Page Page Page Page Page Page Page Page Page About this Guide Text conventions This guide uses the following conventionsIcons Related About this Guide Using System Access Commands Description Authentication-mode SyntaxView ParameterSystem View Auto-execute command SyntaxText Specifies the command to be run automatically Command-privilege level SyntaxDatabits 7 Undo databits 4500command-privilege level 0 view system interfaceDatabits Syntax Sets the data bits toDisplay user-interface Syntax SyntaxDisplay the summary information of user interface Output description of the display user-interfacecommandSummary Display the summary of a user interface Information is displayed in the following formatInformation displays in the following format Output description of the display users commandDisplay users Syntax All Enter to display information on all user interfacesUser view Flow-control SyntaxFree user-interface Syntax 4500free user-interface aux Header SyntaxPress the Enter key Initial character % is not the header contentsMode 2 Input in several lines Idle-timeout minutes seconds Undo idle-timeout Initial character % is the header contentsIdle-timeout Syntax 4500user-interface aux Ui-aux0history-command max-sizeUi-aux0language-mode chinese Language-mode SyntaxLock Syntax Language-mode chinese englishParity even mark none odd space Undo parity To lock the current user interface, enter the followingParity Syntax Protocol inbound Syntax4500user-interface vty Ui-vty0protocol inbound ssh Configure SSH protocol supported by VTY0 user interfaceVTY user interface view Quit SyntaxScreen-length Syntax Return SyntaxSystem view or higher Send all number type Service-type SyntaxSend Syntax View Local-user View4500local-user zbr Luser-zbrservice-type telnet level Shell Undo shell Shell SyntaxSpeed speed-value Undo speed Speed SyntaxStopbits Syntax 4500user-interface vty 0Super level Sets the stop bits toSuper Syntax To change to user level 3 from the current user levelSysname Syntax Super password SyntaxTo set the password for level 3 to zbr, type the following 4500super password level 3 simple zbr4500sysname 3Com System-view SyntaxTo enter system view from user view, enter the following Telnet SyntaxUser-interface Syntax User privilege level level Undo user privilege level User privilege level SyntaxSW4500system-view SW4500user-interface 0Ethernet Port Link Aggregation Commands Using Port CommandsUsing Port Commands Port to other ports, to ensure consistent configuration Ports on your SwitchCopy configuration Syntax Interface commandEthernet1/0/1broadcast-suppression pps Ethernet Port ViewDescription Syntax Undo broadcast-suppression4500display interface Ethernet 1/0/1 Display interface SyntaxVlan Output Description of the Display Interface Command4500display loopback-detection Display loopback-detectionAny view Details display in the following formatDisplay port Syntax Display unit SyntaxParameters Related command speedDisplay the port information for all ports on Unit Duplex SyntaxFlow-control Undo flow-control Interface SyntaxLoopback external internal Loopback SyntaxExternal External loop test Internal Internal loop test 4500interface ethernet1/0/1Loopback-detection Syntax Enable port loopback detection controlEthernet1/0/1loopback-detection control enable 4500loopback-detection interval-time To enable port loopback detection, enter the followingRelated commands display loopback-detection Mdi across auto normal Undo mdi Ethernet1/0/1loopback-detection per-vlan enableMdi Syntax Multicast-suppression Syntax Port hybrid pvid vlan Syntax Port access vlan SyntaxTo assign Ethernet port 1/0/1 to VLAN3, enter the following Port hybrid vlan Syntax 4500interface e1/0/1 Port link-type SyntaxEthernet1/0/1port trunk permit vlan 2 4 50 to Port trunk permit vlan SyntaxAll Enter to add the trunk port to all VLANs Port trunk pvid vlan SyntaxEthernet1/0/1port trunk pvid vlan Reset counters interface SyntaxShutdown Syntax Undo form of this command isUnicast-suppression ratio pps pps Undo unicast-suppression Related command duplexUnicast-suppression Syntax Ethernet1/0/1unicast-suppression 4500debugging link-aggregation event 4500debugging link-aggregation errorDebugging lacp packet Syntax 4500debugging lacp packet interface ethernet1/0/1 Debugging lacp state Syntax4500display link-aggregation summary To enable all Lacp state machines debugging4500debugging lacp state all Display link-aggregation summary4500display link-aggregation verbose Display link-aggregation verbose aggid4500display link-aggregation interface ethernet4/0/1 To display the local system ID Lacp enable SyntaxDisplay lacp system-id Syntax Lacp system-priority Syntax To enable Lacp at Ethernet1/0/1, enter the followingLacp port-priority Syntax To set port priority as 64, enter the following4500lacp system-priority To set system priority as 64, enter the followingAggid Aggregation group ID, in the range of 1 to To create manual aggregation group 22, enter the following Related command display link-aggregation summary4500link-aggregation group 22 mode manual 4500reset lacp statistics Reset lacp statistics SyntaxRelated command display link-aggregation interface Using Port Commands Voice Vlan Commands Using Vlan CommandsTo give VLAN1 the description RESEARCH, enter the following VLANs and Vlan interfaces on your systemVlan view Display vlan vlanid all static dynamic Related command interface Vlan-interfaceDisplay vlan Syntax 4500display interface vlan-interfaceInterface VLAN-interface Syntax ExamplesTo display information about Vlan Port Syntax For the related command, see display vlanRelated command display interface vlan-interface To enter the interface view of VLAN1, enter the followingVlan2port ethernet1/0/2 to ethernet1/0/4 Add Ethernet1/0/2 through Ethernet1/0/4 to VlanVlan Interface View Restart interface after shutting down the interface4094 All Delete all VLANs Is default Vlan and cannot be deletedRelated commands display vlan Vlan SyntaxDisplay voice vlan status Display voice vlan status SyntaxVoice vlan aging Syntax Voice vlan enable SyntaxVoice vlan macaddress Syntax Voice vlan vlanid enable Undo voice vlan enable4500voice vlan 2 enable Voice vlan SyntaxTo set the Voice Vlan in manual mode, enter the following For the related command, see display voice vlan ouiVoice vlan mode Syntax Voice vlan mode auto Undo voice vlan mode autoVoice vlan security enable Undo voice vlan security enable By default, the Voice Vlan security mode is enabled4500undo voice vlan mode auto 4500undo voice vlan enable 4500undo voice vlan mode autoCommands Any view PoE on your Switch 4500 PWRPort or all ports on the Switch Display poe interface Syntax4500display poe interface power ethernet1/0/10 Display poe power SyntaxDisplay the power information of port Ethernet1/0/10 Display poe powersupply View Display the power information of all portsDisplay poe Syntax Powersupply 4500display poe powerDisplay the PSE parameters Poe enable SyntaxEnable the PoE feature on the current port Poe legacy enable SyntaxPoe max-power Syntax Enable the nonstandard-PD detect functionDisable the nonstandard-PD detect function Set the PoE mode on current port to signal Set the maximum power supplied by current portRestore the default maximum power on the current port Poe mode SyntaxPoe priority Syntax Configure the PoE management mode on port to autoRestore the default management mode Ethernet1/0/3poe priority critical Poe update SyntaxPoe update refresh full filename Set the port priority to critical4500poe update refresh 0290021.s19 Update the PSE processing software onlineAccess Management Configuration Commands ARP Configuration CommandsDhcp Client Configuration Commands Dhcp Relay Configuration CommandsIP Performance Configuration Commands UDP Helper Configuration CommandsCorresponding IP addresses Addressing on your SwitchDisplay ip host Syntax Vlan Interface view Configure the IP address of interface Vlan interface 1 asIp address Syntax Ip host Syntax Related command display ip hostAddress Resolution Protocol ARP operations on your Switch Arp check enable SyntaxUndo arp static ipaddress 4500undo arp check enableArp static Syntax 4500arp static 202.38.0.10 00e0-fc01-0000 1 Ethernet1/0/1 Related commands reset arp, display arp, debugging arp4500arp timer aging 4500arp static 202.38.0.10 00e0-fc01-0000 1 arp timer agingArp timer aging agingtime Undo arp timer aging Related commands display arp timer agingDisplay arp Syntax To enable ARP packet debugging, enter the followingFor the related commands, see Output Description of the debugging arp packet Command4500display arp Display arp timer aging SyntaxOutput Description of the display arp Command Display arp timer aging4500reset arp static Reset arp SyntaxReset arp dynamic static interface interfacetype Related command arp static, display arpDebugging dhcp xrn xha Syntax Display dhcp client verbose Display dhcp client SyntaxIp address dhcp-alloc Syntax 4500debugging dhcp xrn xhaDebugging dhcp-relay Address using DhcpDebugging. By default, Dhcp relay debugging is disabled To enable Dhcp relay debugging, enter the followingDhcp-server groupNo Undo dhcp-server Dhcp-server SyntaxGroupNo Enter a Dhcp Server group number, in the range 0 to Dhcp-server ip SyntaxDisplay dhcp-server Syntax Display dhcp-server interface vlan-interface vlanid ViewsVlanid Enter the Vlan interface number 4500display dhcp-serverAm ip-pool Syntax Am enable SyntaxAm enable Undo am enable 4500am enableAm trap enable Undo am trap enable Am trap enable SyntaxDisplay am Syntax By default, the access management trap is disabledTo enable the access management trap, enter the following 4500am trap enablePort isolate Syntax Output Description of the display am CommandDisplay isolate port Syntax To display port isolation information, enter the followingNot available UDP Helper Configuration operations on your SwitchBy default, UDP Helper debugging is disabled To enable UDP Helper packet debugging, enter the followingUdp-helper port Syntax To enable the UDP Helper functionSyntax Server Interface 1, enter the following4500udp-helper port dns Udp-helper server SyntaxIp-addressEnter the IP address of the destination server Hop, current flag, timestamp and outbound interface Performance Configuration operations on your SwitchDisplay fib Syntax Number Enter the ACL in number form, in the range 2000 to Display fib ipaddress SyntaxLonger All FIB entries matched in the natural mask range Display fib acl Syntax4500display fib begin Display fib ip-prefix Syntax4500display fib acl Display fib begin include exclude textDisplay icmp statistics Syntax Display fib statistics SyntaxSock-typeEnter the type of a socket tcp1, udp 2, raw ip Output Description of the display icmp statistics CommandTo view statistics about Icmp packets, enter the following Display ip socket SyntaxDisplay ip statistics Display ip statistics Syntax4500display ip socket socktype 4500display ip statistics Output Description of the display ip statistics CommandRelated commands display ip interface, reset ip statistics To view statistics about IP packets, enter the followingDisplay tcp statistics Related commands display tcp status, reset tcp statisticsDisplay tcp statistics Syntax To view statistics about TCP packets, enter the followingDisplay udp statistics Syntax Output Description of the display tcp status CommandDisplay tcp status Syntax To clear the IP statistics information, enter the following Reset ip statistics SyntaxReset tcp statistics Syntax Tcp timer syn-timeout Syntax Reset udp statistics SyntaxTcp timer fin-timeout Syntax Tcp window Syntax Undo tcp timer syn-timeoutRelated commands tcp timer fin-timeout,tcp window 4500tcp timer syn-timeout4500tcp window Using Network Protocol Commands RIP Configuration Commands Static Route Configuration CommandDisplay ip routing-table IP Routing Policy CommandsDisplay ip routing-table Syntax Display ip routing-table acl aclnumber verbose Output Description of the display ip routing-tableCommand4500display ip routing-table 4500display ip routing-table acl 2000 verbose 4500acl number Acl-basic-2000rule permit source 10.1.1.1Acl-basic-2000display ip routing-table acl Verbose IpaddressDisplay ip routing-table ipaddress mask longer-match View Display ip routing-table ip-prefix ipprefixname verbose Ip-prefix4500display ip routing- .1.1.0 24 2.2.2.0 4500display ip routing-table ip-prefix abc2 verbose 4500display ip routing-table protocol static Display ip routing-table protocol protocol inactive verbose4500display ip routing-table protocol direct Display ip routing-table statistics To display the route information, enter the followingDisplay ip routing-table radix 4500display ip routing-table radixDisplay ip routing-table verbose Command4500display ip routing-table statistics Descriptor Meaning 4500display ip routing-table verboseIp route-static Syntax Delete static-routes all SyntaxDelete all the static routes in the router Description Checkzero Syntax Default cost SyntaxDisplay rip Undo default costRipdefault cost Display rip SyntaxFilter-policy export Syntax Output Description of the display rip CommandRipfilter-policy 2000 export Related commands acl, filter-policy import, ip ip-prefixFilter-policy import Syntax Import-route Syntax Host-route SyntaxRipimport-route static cost Related commands default costNetwork Syntax Networkaddress Enter the IP network address of an interfaceUndo peer ipaddress Peer SyntaxIpaddress Enter the interface IP address of the peer router RipnetworkTo specify a RIP preference of 20, enter the following Reset SyntaxReset the RIP system Preference SyntaxInterface View To enable RIP, and enter RIP view, enter the followingRip authentication-mode Syntax Rip SyntaxVlan-interface1rip authentication-mode simple aaa MD5 cipher text authentication key for RIP-2Related command rip version Rip input Undo rip input Vlan-interface1rip authentication-mode md5 usual aaaRip input Syntax Rip metricin SyntaxRip output Undo rip output Rip metricout SyntaxRip output Syntax Rip metricout value Undo rip metricoutRip split-horizon Undo rip split-horizon Rip split-horizon SyntaxRip version Syntax Summary Syntax Rip work SyntaxRipundo summary Timers SyntaxUndo timers update timeout Riptimers update 10 timeout Route Policy View These commands operate across all routing protocolsRelated command ip ip-prefix Apply cost SyntaxRoutepolicyname Specify displayed Route-policy name Output Description of the display ip-ip prefix CommandOutput Description of the display route-policyCommand Display route-policy SyntaxIf-match cost value Undo if-match cost If-match acl ip-prefix SyntaxRoute policy view If-match cost SyntaxRoute-policyif-match interface Vlan-interface By default, no match sub-statement is definedIf-match interface Syntax Undo if-match interfaceRoute-policyif-match ip next-hop ip-prefix p1 If-match ip next-hop SyntaxIp ip-prefix Syntax Description 4500route-policy policy permit node Route-policy SyntaxRoute-policy Using Routing Protocol Commands Using Multicast Protocol Member port timeout Igmp configuration commands on your SwitchDisplay igmp-snooping Syntax Configuration Snooping configuration informationDisplay igmp-snooping statistics Display the multicast group information about VLAN2Display statistics information about Igmp Snooping 4500display igmp-snooping group vlanIgmp-snooping Syntax Enable Igmp Snooping on VlanIgmp-snooping enable disable 4500igmp-snooping host-aging-time Configure to respond to the Igmp Snooping packet within 20sSet the aging time to 300 seconds 4500igmp-snooping router-aging-time Reset igmp-snooping statisticsClear Igmp Snooping statistics information 4500igmp-snooping max-response-time4500reset igmp-snooping statistics Using Multicast Protocol Commands Logon user’s ACL Control Command QoS Configuration Commands ListAcl Syntax Number chosen from 2000 to Display the content of all the ACLsDisplay acl Syntax All Displays all ACLs4500display packet-filter unitid Packet-filter SyntaxDefine or delete the subrules of an advanced ACL Reset acl counter SyntaxDefine or cancel the subrules of user-defined ACL Rule Syntax Define or delete the subrules of a basic ACLParameters specific to advanced ACLs Corresponding ACL ViewParameters specific to basic ACLs Parameter for user-defined ACL Parameters specific to Layer 2 ACLDisplay mirror Syntax Display qos-interface all Syntax Unit-id Unit ID of the SwitchDisplay COS and Local-precedence map Display qos-interface line-rate Display all the configurations of QoS parameters for unitUnit-idUnit ID of the Switch Display qos-interface 1 allUndo line-rate Related command mirrored-toDisplay the traffic limit settings Line-rate Syntax4500interface Ethernet 1/0/1 4500line-rate outbound Mirrored-to SyntaxMirroring-port inbound outbound both Undo mirroring-port Related command display qos-interface mirrored-toMirroring-port Syntax 4500interface Ethernet 1/0/4 Monitor-port SyntaxPriority Syntax Monitor-port Undo monitor-portPriority trust Undo priority Set the priority of Ethernet1/0/1 port toPriority trust Syntax Undo qos cos-local-precedence-map Following is the default CoS and Local Precedence tableDefault CoS and Local-precedence table 4500qos cos-local-precedence-map 0 1 2 3 4 5 6 Configure CoS and Local Precedence tableQueue-indexindex of output queue, in the range of 0~7 Wred SyntaxLocal Switch using Telnet Use the undo wred command to restore the default settingsBy default, the wred function is disabled Switch4500ip http acl Ip http acl SyntaxSnmp-agent community Syntax Ip http acl acl-number Undo ip http acl4500snmp-agent community read MyCompany acl Snmp-agent group Syntax4500snmp-agent group v1 MyCompany acl Snmp-agent usm-user SyntaxParameter Using QOS/ACL Commands 4500system-view 4500change self-unit to Using Stack Commands4500display ftm topology-database Change unit-id SyntaxTo change the unit ID from6 to 4, enter the following Change unit-id to 1-8 1-8 auto-numberingPort display the stacking port information Display ftm SyntaxDisplay xrn-fabric Syntax 4500fabric save-unit-id Fabric save-unit-id Syntax4500display xrn-fabric Fabric save-unit-id Undo fabric save-unit-idFtm stacking-vlan vlan-id Undo ftm stacking-vlan Fabric-port enable Syntax4500fabric-port gigabitEthernet1/0/51 enable Ftm stacking-vlan Syntax4500ftm stacking-vlan 4500xrn-fabric authentication-mode simple helloSet Vlan 2 as stacking Vlan Set unit name SyntaxSysname sysname Undo sysname You can use this command to set a name for a deviceUnit Name Unit ID First Second Using Rstp Commands Related command reset stp Configuration commands on your SwitchTo the port command in this guide State of the SwitchDisplay information Reset stp SyntaxReset stp interface interfacelist Stp Syntax 4500reset stp interface Ethernet1/0/1 to Ethernet1/0/3Stp enable disable Undo stp Stp bpdu-protection Syntax Related command stp modeTo enable Rstp on a Switch, enter the following To disable Rstp on Ethernet1/0/1, enter the followingPath cost for ports at different link speeds Stp cost SyntaxCost Specifies the path cost, ranging from 1 to Stp edged-port SyntaxStp loop-protection Undo stp loop-protection Stp loop-protection SyntaxStp mcheck Stp mode SyntaxStp mode stp rstp Undo stp mode Stp mcheck SyntaxStp pathcost-standard Syntax 4500stp mode stp4500stp pathcost-standard dot1t Stp point-to-point SyntaxStp port priority Syntax 4500stp pathcost-standard dot1d-19984500stp priority Stp priority SyntaxUndo stp priority 4500stp root primary Stp root primary SyntaxStp root secondary Syntax Stp root primary Undo stp rootStp root-protection Undo stp root-protection Stp root-protection Syntax4500stp root secondary 4500stp timeout-factor Stp timeout-factor SyntaxStp timer forward-delay Syntax Stp timeout-factor number Undo stp timeout-factor4500stp timer forward-delay Stp timer hello SyntaxUndo stp timer forward-delay Related commands stp timer hello, stp timer max-ageStp transmit-limit Syntax Stp timer max-age SyntaxEthernet1/0/1stptransmit-limit Using Rstp Commands AAA Configuration Commands Using AAA and RadiusRadius Protocol Configuration Commands 235 Sessions Displays the session connection information SwitchDisplay the configuration information Display dot1x SyntaxDot1x Syntax 4500dot1x interface ethernet 1/0/1 To enable 802.1x on Ethernet 1/0/1, enter the followingTo enable 802.1x globally, enter the following Dot1x max-user Syntax Related command display dot1xConfigure 802.1x user to use PAP authentication Dot1x dhcp-launch Syntax4500dot1x max-user 32 interface ethernet 1/0/2 Dot1x port-control SyntaxDot1x port-method Syntax Dot1x quiet-period Undo dot1x quiet-period Dot1x quiet-period Command4500dot1x port-method portbased interface ethernet 1/0/3 4500dot1x quiet-period To enable quiet-period timer, enter the followingRelated command display dot1x, dot1x timer Dot1x retry Syntax4500dot1x retry Dot1x supp-proxy-check SyntaxDot1x timer Syntax Reset dot1x statistics interface interface-list Reset dot1x statistics Syntax4500dot1x timer server-timeout Debugging Syntax 4500reset dot1x statistics interface ethernet 1/0/2Clear the 802.1x statistics on Ethernet 1/0/2 4500display mac-authentication Display mac-authenticationOffline detect period Mac-authentication SyntaxUndo mac-authentication authmode 4500mac-authentication interface Ethernet 1/0/14500mac-authentication 4500mac-authentication authmode usernamefixed 4500undo mac-authentication authusername 4500mac-authentication authpassword mac4500mac-authentication authusername vipuser 4500mac-authentication timer server-timeout 4500mac-authentication domain CamsCurrent ISP domain, ranging from 1 to On your SwitchAccess-limit Syntax ISP Domain View4500local-user JohnQ Cut connection Syntax4500cut connection domain marlboro.net All Configures to disconnect all connectionDisplay connection Syntax 4500display connection 4500display domain Display domain SyntaxDisplay local-user Syntax Display domain isp-name4500display local-user Domain Syntax Output description of the display local-usercommandISP Domain View Idle-cut disable enable minute flowIdle-cut Syntax Local-user Syntax Related command domainLevel Syntax Local User ViewTo add a local user named 3Com1, enter the following By default, no local userRelated commands display local-user,server-type Messenger Syntax Related commands display local-user,password4500local-user password-display-mode cipher-force 4500local-user 3Com1 Luser-3Com1password simple Password Syntax4500domain system Isp-systemmessenger time enable 30 Password simple cipher password Undo passwordScheme Syntax Related commands radius scheme, display radiusSelf-service-url enable url-stringself-service-url disable Self-service-url SyntaxChange user password on this Related command radius scheme, display radiusService-type Syntax State active block State SyntaxISP Domain View Local User View Accounting that uses this Radius scheme Accounting optional SyntaxSelection of Radius accounting option Otherwise, the user will be disconnectedDisplay local-server statistics Radius Scheme ViewUndo data-flow format 4500radius scheme 3Com4500display radius Display radius Syntax4500display local-server statistics Display radius statistics Troubleshooting Related command radius schemeDisplay radius statistics Syntax Displayed packet information can help with Radius diagnosisDisplay stop-accounting-buffer Key Syntax 4500radius scheme 3Com Radius-3Comkey authentication hello4500local-server nas-ip 10.110.1.2 key 3Com Local-server SyntaxNas-ip Syntax Radiuskey accounting okPrimary accounting Syntax Ip-addressIP address in dotted decimal formatRadius Server Group View Related commands key, radius scheme, statePrimary authentication Syntax 4500radius nas-ip Radius nas-ip SyntaxRadius nas-ip ip-address Undo radius nas-ip Undo radius scheme radius-scheme-name Reset radius statistics SyntaxReset radius statistics Radius scheme SyntaxTo clear the Radius protocol statistics, enter the following 4500reset radius statisticsUndo retry Retry Syntax4500radius scheme 3Com Radius-3Comretry realtime-accounting Retry stop-accounting Syntax4500radius scheme 3Com Radius-3Comretry stop-accounting Secondary accounting SyntaxServer-type 3com standard Server-type SyntaxUndo server-type Stop-accounting-buffer enable Timer seconds Undo timer Timer SyntaxTime quiet minutes Undo timer quiet Related commands radius scheme, retryTimer quiet Syntax Timer response-timeout seconds Undo timer response-timeout Timer response-timeout SyntaxRelated commands retry realtime-accounting,radius scheme 4500radius scheme 3Com Radius-3Comtimer realtime-accountingUser-name-format with-domain without-domain 4500radius scheme 3Com Radius-3Comtimer response-timeoutUser-name-format Syntax Related command radius scheme FTP Server Configuration Commands Configuration File Management CommandsMAC Address Table Management Commands FTP Client CommandsTftp Configuration Commands System Debug Commands Device Management CommandsBasic System Configuration and Management Commands System Status and System Information Display CommandsSnmp Configuration Commands SSH Terminal Service Configuration Commands Rmon Configuration CommandsNTP Configuration Commands Sftp Client Configuration Commands SSH Client Configuration CommandsSftp Server Configuration Commands Copy Syntax Delete the file flash/test/test.txt Display current directory informationCopy the file test.txt and save it as test.bak Delete SyntaxDisplay information for directory flash/test Dir SyntaxDisplay the information for file flash/test/test.txt File prompt Syntax Configure the prompt mode of file operation as quietExecute Syntax Directory Directory name Format SyntaxFormat flash Mkdir SyntaxDisplay the current directory information Display contents of file test.txtMove Syntax Rename Syntax Pwd SyntaxRmdir Syntax Reset recycle-bin SyntaxFile-pathName of the file to be deleted Delete the file from the recycle binUndelete Syntax File-pathName of the file to be recoveredRecover the deleted file sample.bak Delete the directory test4500dir /all Files on your SwitchDisplay Syntax Current-configuration Display current-configuration controller interfaceConfiguration File Management Commands Display saved-configuration unit unit-id Unit unit-idSpecify the Unit ID of switch4500display current-configuration include user 4500display this Display this SyntaxDisplay this 4500display startup Reset saved-configurationDisplay startup Syntax Display startupSave filename safely 4500reset saved-configurationSave Syntax 4500startup bootrom-access enable Get the current configuration files stored in flash memoryTo enable Bootrom access function, enter the following Startup saved Syntax ConfigurationDisplay ftp-user Syntax Display ftp-server SyntaxFtp server Syntax Show the configuration of FTP user parametersEnable Start FTP Server Ftp timeout Syntax4500ftp timeout Set the connection timeout to 36 minutesRelated commands display local-user,service-type New local user added Binary Syntax Configure to transmit data in the Ascii modeAscii Syntax FTP Client viewBye Configure to transmit data in the binary modeBye Syntax Cd SyntaxCdup Change the working path to flash/tempCdup Syntax Change working path to the upper level directoryDelete remotefile Close SyntaxDelete the file temp.c CloseDisconnect Disconnect SyntaxConnect to FTP Server at the IP address Ftp SyntaxShow local working path Get SyntaxDownload the file temp1.c and saves it as temp.c Lcd SyntaxQuery file temp.c Ls SyntaxPassive Syntax Set the data transmission to passive modeFtpmkdir flash/lanswitch Pathname Directory nameFtppassive Put SyntaxRemotehelp Syntax Protocol-commandFTP protocol commandShow the current directory on the remote FTP Server User Syntax Show the syntax of the protocol command userPathname Directory name of remote FTP Server Delete the directory flash/temp1 from FTP ServerEnable verbose Username Logon username Password Logon passwordUse the user command to register an FTP user Log in the FTP Server with username tom and password helloTftp get Syntax Tftp server and save it with a different name on the switchRelated command tftp put VxWorks.app on the local switchSW5500tftp 1.1.3.214 put sw5500cfg.txt temp.txt Display mac-address SyntaxInterface-nameSpecify the interface name SW4500display mac-address aging-time Mac-address SyntaxSW4500display mac-address 00e0-fc01-0101 Display mac-address aging-timeMax-mac-countmac-address max-mac-count count Undo mac-address static dynamic blackhole mac-addressUndo mac-address max-mac-count Mac-address timer SyntaxBoot bootrom Syntax Boot boot-loader SyntaxDisplay cpu Syntax Display boot-loader SyntaxDisplay fan Syntax Display device SyntaxShow device information Display memory Syntax Display power SyntaxReboot Syntax Show power stateDisplay schedule reboot Syntax Schedule reboot at hhmm yyyy/mm/dd Undo schedule reboot Reboots the SwitchSchedule reboot at Syntax SW4500schedule reboot delay Schedule reboot delay SyntaxSW4500schedule reboot at Schedule reboot delay hhhmm mmm Undo schedule rebootDevice Management Commands Clock datetime Syntax Commands available on your SwitchDefault is 235552, 2000/4/1 Related command display clockClock timezone zonename add minus Hhmmss Undo clock timezone Clock timezone SyntaxDisplay clock Syntax Set the hostname of the Switch to be LANSwitchView the current system date and clock Display config-agent SyntaxUnit-idUnit ID of current switch, in the range of 1 to Display the information about the system version Show all the enabled debuggingDisplay debugging Syntax Display version SyntaxInformation that can be displayed on your Switch End-station polling Syntax Ip-address For the related commands, see display debuggingEnable IP Packet debugging Requiring periodic testingPing -a ip-address -c count -d -h tll Configure 202.38.160.244 requiring periodical testingPing Syntax SW4500end-station polling ip-addressDescription Remote-ping Purpose Displays the test history Related CommandsDisplay remote-ping Purpose Displays the latest test resultsNumber Test Connection fail number Remote-ping-agent Purpose enable This command can be used in the following views Any viewTracert -a source-ip -f first-TTL -m max-TTL -p port Enable remote-ping clientRemote-ping-agent enable Undo remote-ping-agent enable Tracert SyntaxSW4500tracert Port isDisplay info-center Show details about the information channelDisplay info-center Syntax SW4500display channelUndo info-center channel channel-number Show the system log informationUndo info-center console channel Rename channel 0 as execconsoleChannel Info-center console channel channel-number channel-nameInfo-center logbuffer Syntax Enable the system log functionSW4500info-center enable SW4500info-center logbuffer Info-center loghost SyntaxInfo-center monitor channel channel-number channel-name Related commands info-center enable, display info-centerSW4500info-center loghost SW4500info-center loghost source vlan-interfaceSW4500info-center monitor channel Configure channel 6 as the Snmp information channelLevel Level Info-center source SyntaxChannel-numberChannel number to be set SW4500info-center snmp channelModule names in logging information FTP server moduleIP module Information Channel in Each Output Direction by Default Info-center switch-on Syntax Info-center timestamp Syntax SW4500info-center switch-on 2 trappingInfo-center trapbuffer Syntax Reset logbuffer SyntaxSW4500info-center timestamp debugging boot Reset logbufferTerminal debugging Syntax Reset trapbuffer SyntaxClear information in log buffer Clear information in trap bufferTerminal monitor Syntax terminal monitor Enable the terminal display debuggingDisable the terminal log display Terminal logging Syntax terminal loggingTerminal trapping Syntax Disable the terminal monitorEnable trap information display Commands available on your SwitchGroup Display the currently configured community namesDisplay the engine ID of current device Following table describes the output fields Display Snmp group name and safe modeOutput description of the display snmp-agent group command Groupname Group name, ranging from 1 to 32 bytesSW4500display snmp-agent statistics Display the current state of Snmp communicationDisplay snmp-agent statistics Total number of the input Snmp packets Display the information of all the current users Display the character string sysContact system contactDisplay the system location Display the version information of running SnmpView statistics information of Snmp proxy on unit Enable snmp trap SyntaxEnable snmp trap updown Undo enable snmp trap updown Display snmp-proxy unit SyntaxSW4500snmp-agent community read comaccess SW4500snmp-agent community write mgr Delete the community name comaccessSW4500undo snmp-agent community comaccess SW4500snmp-agent group v3 3Com Configure the ID of a local or remote device asTo create an Snmp group named 3Com, enter the following Snmp-agent mib-view SyntaxSW4500snmp-agent mib-view included mib2 Create a view that consists of all the objects of MIB-IISet system location as Building 3/Room Location command to restore the default valueSet the size of Snmp packet to 1042 bytes Snmp-agent sys-info SyntaxSW4500snmp-agent trap enable Standard authentication coldstart linkdown linkup warmstart Snmp-agent trap enable SyntaxSW4500snmp-agent trap life Configure the timeout interval of Trap packet as 60 secondsSnmp-agent trap life Syntax Snmp-agent trap life seconds Undo snmp-agent trap lifeSW4500snmp-agent trap queue-size Configure the queue length toSnmp-agent trap source Syntax Vlan-idSpecify the Vlan interface ID, ranging from 1 toSnmp-agent usm-user Syntax SW4500undo snmp-agent Disable the running Snmp agents of all Snmp versionsUndo snmp-agent Syntax Undo snmp-agentDisplay rmon event Syntax Display rmon alarm SyntaxDisplay rmon eventlog Syntax Port-numEthernet port name For the related commands, see rmon historyOutput description of the display rmon eventlog command Display rmon history SyntaxOutput description of the display rmon history command Display rmon prialarm SyntaxPrialarm-table-entryentry of extended alarm table Display alarm information about extended RmonShow Rmon statistics Output description of the display rmon prialarm commandDisplay rmon statistics Syntax Port-numEthernet port numberUndo rmon alarm entry-number Rmon alarm SyntaxRmon event Syntax Delete the information of entry 15 from the alarm tableSW4500undo rmon alarm Undo rmon history entry-number Rmon history SyntaxDelete the entry 15 from the history control table SW4500rmon event 10 logSW4500interface Ethernet1/0/1 Rmon prialarm SyntaxUndo rmon prialarm entry-number Entry-numberSpecifies the entry number, ranging from 1 toUDP port 123 is closed as the NTP feature is disabled Delete line 10 from the extended Rmon alarm tableSwitch 4500 Family provides the following functions UDP port 123 is opened only when the NTP feature is enabledVerbose Displays detailed NTP session information View the status of all sessions maintained by NTP servicesDisplay ntp-service sessions verbose SW4500 display ntp-service sessionsDisplay ntp-service status Ntp-service access Syntax Display ntp-service trace SyntaxSW4500 system-view SW4500 ntp-service access peerSW4500 ntp-service access server Undo ntp-service authentication-keyid key-id Enable the NTP authenticationSW4500 ntp-service authentication enable By default, no switch operates in the broadcast client mode Max-dynamic-sessionsntp-service max-dynamic-sessions number Disable Vlan-interface1 from receiving NTP messagesNtp-service Syntax Undo ntp-service max-dynamic-sessions SW4500-Vlan-interface1ntp-service multicast-client By default, no trusted authentication key is configured Key-id Authentication key ID, in the range of 1 toNtp-service unicast-peer Syntax Ntp-service unicast-server SW4500 ntp-service unicast-server 128.108.22.44 version SW4500debug ssh server all SW4500term debug Debugging ssh server SyntaxSW4500display rsa local-key-pair public Related command rsa local-key-pair createDisplay rsa local-key-pair public Display rsa peer-public-key brief name keyname Display rsa peer-public-keyDisplay ssh server status session Display ssh server SyntaxSW4500display rsa peer-public-key SW4500display rsa peer-public-key name candy2Public key view To display SSH sessionsPeer-public-key end Syntax SW4500user-interface vty 0 Related command user-interface vtyRelated commands rsa peer-public-key,public-key-code begin To quit public key view, enter the followingPublic-key-code end Syntax Public-key-code begin SyntaxPublic key edit view To generate the local RSA key pair, enter the following Rsa local-key-pair create SyntaxSsh server Syntax Rsa peer-public-key SyntaxCharacters Program supporting SSH1.5Ssh user assign rsa-key Syntax By default, it is Related command display ssh serverSsh server timeout Syntax SW4500ssh user jsmith assign rsa-key key1 Related command display ssh user-informationTo associate the key 1 with jsmith, enter the following Keys, enter the following At the next logonDisplay ssh server-info Syntax SW4500rsa peer-public-key SW4500003 Related commands rsa peer-public-key, public-key-code beginRelated commands rsa peer-public-key, public-key-code end To exit the public key view, enter the followingPublic-key-code end Syntax SW4500rsa peer-public-key SW4500002 Ssh client assign rsa-key SyntaxEnable Ssh2 Syntax SW4500ssh client first-time enableMd596 Hmac algorithm hmac-md5-96 Ssh user service-type Syntax Sftp server enable SyntaxUse the sftp server enable command to start the Sftp server By default, the Sftp server is shutdownSftp Client View By default, the service type is stelnetParticular user TypeRemote-fileThe name of a file on the server Remote-pathThe name of a path on the serverTo change the current path to d/temp, enter the following Sftp-clientdelete temp.c Remote-pathThe name of the directory to viewTo view the directory, flash/, enter the following Exit Syntax exit ViewSftp-clientget temp1.c temp.c Command The name of a commandHelp command Help SyntaxFlash To view the directory flash/, enter the followingSftp-clientput temp.c temp1.c Sftp-clientremove temp.c Remove SyntaxOldname Original file name Sftp-clientrmdir D/temp1 Newname New file nameSftp Syntax Sftp-clientrename temp1 temp2SW4500sftp Display password-control Configuring Password ControlDisplay Syntax Fields in Display Password- Control CommandPassword # Configure the system login password for user test toPassword-control Syntax System view System View return to User View with Ctrl+Z Password-control enable SyntaxPassword-control super Syntax Reset password-control history-record username username # Delete the history password records of all usersUsername username Specifies a user name # Delete the history password records of user testReset password-control blacklist username username Blacklist# Delete user test from the blacklist Configuring Password Control Five second countdown timer allowing access to the bootrom Bootrom InterfaceBoot Menu BootEnter Option 1 at the prompt to display the following Current mode is enable bootrom password recovery Download Commands Selecting a Tftp download Selecting an XModem download Selecting a FTP download