3Com 2426-PWR, 2226-SFP, 2250-SFP manual Use the Setup tab to create a port mirror session

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Switch takes all the traffic going in or out of the mirror port and copies it to the monitor port.

CAUTION: The monitor port should have a higher bandwidth than the mirror port. Otherwise, the Switch may not be able to copy all traffic effectively during periods of high traffic.

Two tabs are available on the Port Mirroring page:

Setup

Remove

Setup

Use the Setup tab to create a port mirror session.

Figure 67 Port Mirroring Setup Screen

Monitoring 71

To set up port mirroring:

1Connect a network analyzer to a port.

2Access the Web interface. Click Monitoring, then Port Mirroring on the menu. The Port Mirroring Setup Screen appears.

3Click Monitor as the port type, then select the port number to which you connected the network analyzer. Traffic to or from the selected mirrored port will be forwarded to this port.

4Click Mirror as the port type, then select the port number that you want to monitor. Traffic to or from this port will be forwarded to the monitor port.

5Select Mirror In to monitor a port’s incoming traffic, or Mirror Out to monitor a port’s outgoing traffic.

6Click Apply.

Remove

Use the Remove tab to delete a port mirroring session.

Figure 68 Port Mirroring Remove Screen

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Contents Installation and User Guide 3Com Corporation 350 Campus Drive Marlborough MA Contents Snmp 3COM CLI Reference Guide Page Conventions About this GuideProduct Registration Documentation CommentsAutonegotiating 10/100 Mbps Ports Overview of the Baseline SwitchFeatures and Capabilities Autosensing of MDI/MDIX ConnectionsGigabit Combo Ports RJ-45/SFP Physical FeaturesPower-over-Ethernet Capability RJ-45 10/100 Ports Front PanelGigabit Combo Ports RJ-45/SFP 10/100BASE-TX Link/Activity Status LEDs SFP Mode Rear Panel Power LEDPackage Contents Important Safety Information Installing the SwitchImportante Avviso di Sicurezza Positioning the SwitchRack-Mounting or Free-Standing Using the Mounting KitPlacing Units On Top of Each Other Supplying Power to the SwitchMontagesatz Anweisungen Status Meaning Checking for Correct OperationInserting an SFP Transceiver Using SFP TranceiversApproved SFP Transceivers Removing an SFP Transceiver Performing Spot ChecksRefer to Troubleshooting on Using the Console Command Line Interface CLI Requirements for Accessing the Web InterfaceCLI Summary with Default IP Address CLI Summary with Assigned IP Address Logging On to the Web InterfaceMenu Navigating the Web InterfaceMenu Item Description Snmp Port Status Buttons3Com Switch Detect Welcome Screen Running the 3Com Switch Detect Application3Com Switch Detect Search Screen Connecting to the WEB Interface Device Summary Information Configuration OverviewPolling Interval Device ViewColor Key Administration SettingsModifying the IP Address Settings Automatic IP ConfigurationBackup Configuration IP SetupFirmware Upgrade Restore ConfigurationInitialize, keep IP setting ResetSystem Access RebootCreate User User SummaryRemove User Modify UserSystem Time SetupSystem Name Snmp Remove Configuring VLANsSnmp Add Vlan Modify Vlan Setup ScreenRename Modify PortPort Detail RemoveVlan Detail Sample Vlan ConfigurationsForwarding Tagged/Untagged Frames Setting Up Vlan Across Two Switches Setting Up Two VLANs on the Same SwitchSpanning Tree Tagged Vlan ConfigurationSpanning Tree Summary Screen SummarySpanning Tree Setup Screen Port SetupIgmp Snooping & Query Spanning Tree Port Setup ScreenBroadcast Storm Summary Screen Broadcast StormModify QoS VoIP Traffic SettingsQoS VoIP Setup Screen OUI Add OUI SummaryQoS OUI Modify Screen PoE 3CBLSF26-PWR onlyAdministration Configuring Port SettingsDetail Port Administration Summary ScreenSpeed/Duplex for 1000 Mbps Connections Port Administration Setup ScreenGuidelines for Creating Trunks Link AggregationLink Aggregation Summary Screen CreateUse the Remove tab to delete a link aggregation group Radius Client SecurityStatistics Configure 802.1X Settings802.1X Summary Screen Address Table MonitoringPort Summary Port MirroringUse the Setup tab to create a port mirror session Cable Diagnostic Summary Screen Cable DiagnosticsCable Diagnostic Screen DiagnosticsConfiguring the Switch from the WEB Interface Resetting to Factory Defaults TroubleshootingFiber cable is connected, but the Module Active LED is off Solving LED IssuesForgotten Static IP Address All ports appear to show continual activity If the Problem PersistsLink/Activity LED is on, but network performance is poor Troubleshooting Register Your Product Purchase Value-Added ServicesTroubleshoot Online Access Software Downloads Contact Us Telephone Technical Support and RepairCountry Telephone Number Latsupportanc@3com.com Electrical 3CBLSF26 Related StandardsEnvironmental Physical3CBLSF26PWR Related Standards Electrical 3CBLSF50 Related StandardsEnvironmental PhysicalAppendix B Technical Information Console Cable PIN-OUTSModem Cable Null Modem CablePC-AT Serial Cable Pin Number 10/100 1000 Ethernet Port RJ-45 Pin AssignmentsAppendix C PIN-OUTS Logging on to the CLI Getting Started with the Command Line InterfaceConsole Port Concurrent CLI Sessions CLI CommandsAutomatic Logout Syntax Default Configuration Parameters Ping255.255.255.0 IpSetupUpgrade Initialize Following example resets the Switch to factory defaultsLogout PasswordRegulatory Notices 100 Bandwidth 1000BASE-TAuto-negotiation Category 6 Cables Category 3 CablesCategory 5 Cables Category 5e CablesIeee 802.1Q Full DuplexHalf Duplex Ieee 802.1DMAC Address Power over EthernetLayer Link AggregationSubnet Mask SwitchServer Subnet AddressVlan Numbers IndexIndex