Enterasys Networks ENTERASYS ATX manual Adding a New Filter

Page 55

Using ATX Port Filtering

!

CAUTION

Remember that the ATX’s performance may be adversely affected if you define a large number of Port filters. Because the ATX has to decode packet data further than it would if no filters were established, the forwarding rate of traffic may be slowed as packets are buffered and decoded.

Typically, if you create Bridge Address Table filters or only a small number of Port filters, the forwarding rate of the ATX will not be affected; however, the more complex or greater number of Port filters that you create, the more traffic flow will be affected. For this reason, it is good practice to delete filters from the Port Filtering Table when they are no longer needed.

NOTE

If you are also performing Work Group Configuration on your ATX, remember that each Work Group that you establish will reduce the number of Port filters you can configure at a one-to-one ratio.

Adding a New Filter

The ATX allows you to create up to 100 Port filters (total for all connected ports). To add a new filter to the ATX or modify a previously configured Port Filter:

1.In the Port field, type in the interface number of the port to which this filter will apply.

2.Click on the Type button to select the filter type: ENTRY (the default type) EXIT, MENTRY, or MEXIT.

•Entry filters are used to screen incoming traffic at a receive port. They are applied to packets as they are being received by a specified port.

•Exit filters are used to screen outgoing traffic from the receive port. They are applied to packets after they are received and forwarded by a specified port.

•Mirror Entry filters are used to screen incoming traffic at a receive port that supports and is using port mirroring. They are applied to packets as they are being received by a specified port.

•Mirror Exit filters are used to screen outgoing traffic from the receive port when the port supports and is using port mirroring. They are applied to packets after they are received and forwarded by a specified port.

3.Click on the Pseudo button to indicate whether you want to create a pseudo filter.

•YES indicates that you wish to create a pseudo filter — one which gathers statistics on all packets that have met the filtering criteria, but does not actually filter them. Pseudo filters are useful if you want to determine the effects of a filter without actually implementing it, or for monitoring traffic

Editing the Port Filters Table

4-5

Page 54 Page 56
Image 55
Page 54 Page 56
Contents ATX User’s Guide Page Virus Disclaimer Page Restricted Rights Notice Page Contents Chapter ATX Port Mirroring Chapter Using ATX TrunkingChapter Using ATX Port Filtering Chapter Workgroup ConfigurationIntroduction Related Manuals Using the ATX Switch User’s GuideSoftware Conventions Common ATX Switch Window FieldsUsing Window Buttons Getting Help Using On-line HelpGetting Help from the Global Technical Assistance Center Login ATX Switch Chassis View Viewing Chassis Information ATX Switch Chassis ViewConnection Status Front Panel InformationPort Status Menu Structure Boot PromFirmware Port Status Menu Device MenuHelp Menu Utilities MenuPPE Module Menu Port Menu Port Status DisplaysModule Menu PPE Port MenuStatus Selecting a Port Status ViewPort Status Color Codes Viewing Hardware Types Chassis Manager WindowInterface Description Module Type Text BoxesIPX Routing Managing the HubSelecting the Frame Type for a Port Configuring IPX Routing on a portIP Config/Routing window IP RoutingConfiguring IP Routing on a Port Configuring the IP Address TableIndex Port IP MaskBroadcast Protection Port ConfigurationBridge Port Configuration Local SwitchingRing Speed 11. Bridge Configuration window Setting the Bridge ModeBridge Number Transmitting BPDUsSource Route Configuration Ring NumberToken Ring Translation Setting the Spanning Tree Explorer ModeIPX Source Route IPX FramingARP Translate ARP Source Route Netbios Source RouteTo set the Token Ring Translation Parameters Viewing I/F Summary Information Using the Find Source Address FeatureLogical Status IndexRaw Counts Interface Performance Statistics/Bar GraphsViewing Interface Detail RateNon-Unicast DescriptionAddress UnicastMaking Sense of Detail Statistics Enabling and Disabling Ports Administratively Enabling and Disabling PortsATX Switch Chassis View Managing the Hub Using ATX Trunking State Port Trunking WindowRmt Bridge Id Last ErrorRmt IP Address Last Change Enabling and Disabling TrunkingLink Ordinal Link CountUsing ATX Trunking Using ATX Trunking Port Trunking Window Using ATX Port Filtering Using ATX Port Filtering Protocol Port Filters Table InformationId Identifier PseudoEditing the Port Filters Table Adding a New Filter Using ATX Port Filtering Using ATX Port Filtering Using ATX Port Filtering Using ATX Port Filtering Packets Viewing Filter StatisticsDeleting a Port Filter Last Frame AddressWorkgroup Configuration Workgroup Configuration Virtual Workgroups Window Total Configuring a WorkgroupDeleting a Workgroup Workgroup Configuration Configuring a Workgroup ATX Port Mirroring ATX Port Mirroring Port Mirroring WindowConfiguring Port Mirroring If the ports being mirrored are remote From the device where the mirrored ports are locatedFrom the device where the diagnostic port is located ATX Port Mirroring Port Mirroring Window IPX Routing Tables IPX Network IPX StatisticsIPX Interface Port#IPX Route Tick Count Hop CountNext Hop AgeSocket NodeIDIPX Routing Tables Index Index-2 Index-3 Index Index-4
Top Page Image Contents