Compaq SW3322, SW3324, SW3323 Frame Buffering and Frame Latency, Software Download, 10Overview

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1-10Overview

Frame Buffering and Frame Latency

The switch is a store-and-forward switching device. Each frame is copied into switch memory before being forwarded to another port. This method ensures that all forwarded frames conform to a standard Ethernet frame size and have a correct cyclic redundancy check (CRC) for data integrity. This switching method prevents bad frames from traversing the network and using up valuable network bandwidth, as with cut-through switching technology.

To minimize the possibility of dropping frames on congested ports, the switch provides 4 MB of dynamically allocated frame buffering per 8 10/100 ports and 8 MB per gigabit port. This buffer space is used to queue packets for transmission on congested networks. This is an additional advantage over cut- through switching technology, which drops packets immediately when experiencing collisions.

Software Download

The switch supports the industry-standard Trivial File Transfer Protocol (TFTP) for downloading software to the switch. All switch software is stored in a 1 MB sectored Flash ROM. The download feature allows you to easily install software upgrades to the unit. Compaq Networking Management Software includes a TFTP server and a configuration application to allow for the software downloads. Software can alternatively be downloaded via the serial console port using the XMODEM protocol.

A TFTP or XMODEM software download is invoked via the Download Software Menu using the console menus. A TFTP download can also be invoked via SNMP.

Non-volatile Parameter Storage

Important operating parameters such as IP addresses, Spanning Tree configuration, and management security parameters, are stored in non-volatile Flash memory. These values are retained when the switch experiences power interruptions or is powered down for normal maintenance.

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Contents SW3322/SW3323/SW3324 Dual-Speed Switch User Guide 238 Srxirxw Letxiv Rwxeppexmsr Letxiv SRJMKYVMRKERH1SRMXSVMRKXLI7MXGL Letxiv 72141EREKIQIRX RHI\ Svqexxmrksrzirxmsrw 4VIJEGIYhmirgi Ifsevhrxvmiw 3VKERMEXMSR Overview DescriptionSW 3322/23 12,288 SW3324 20,480 Features2Overview Compaq SW3322/SW3323/SW3324 Dual-Speed Switch User Guide Front Panel 4Overview2Port LEDs L/A Default Configuration Front Panel Components 6OverviewPort LEDs Defined Power Connector Rear PanelRear Panel Components 8OverviewSpanning Tree Protocol Feature SummariesIeee 802.1D Bridge Frame Buffering and Frame Latency Software DownloadNon-volatile Parameter Storage 10OverviewConfiguration and Management Interfaces Port Mirroring 12OverviewBroadcast Throttling BootP/DHCPAuto-negotiation Full Duplex Mode LEDsFlow Control Virtual LANs VLANsClient/Server Network Application Class of ServiceApplication Examples Local Backbone Application 16Overview6Local Backbone Application 338406-B21 SX Gbic Module All 338407-B21 LX Gbic Module All Inspecting Your ShipmentSite Requirements 2Installation Mounting the Switch in a Rack Mounting the Switch on a Table or Shelf4Installation 1Mounting the Switch in a RackConnecting a Terminal to the Console Port 2Connecting a Terminal to the Console Port6Installation Powering the Switch 3GBIC Module InstallationPower-Up 8InstallationRJ-45 Connector 6Inserting an RJ-45 Connector into a PortCopper Cable Specifications Fiber Cable Specifications10Installation Network Cable RequirementsGigabit Ethernet Fiber Specifications 1000Base-SX/LX Ports1000Base-SX Multimode 1000Base-LX MultimodeOverview Main Menu2User Interface User AccessFactory Defaults Private Factory Default SettingsTerminal Baud Rate 9600 Vlan Enable Vlan Port Type Access Menu Hierarchy 4User InterfaceMain Menu Main Menu DescriptionsSystem Configuration Menu System Configuration Menu DescriptionsMenu for configuring a number of SNMP-related parameters 6User InterfaceSnmp Configuration Menu Power Up DiagnosticsDiagnostics enabled Not terminate at any time8User Interface Switch Configuration MenuSnmp Configuration Menu Descriptions Switch Configuration Menu Descriptions Vlan Configuration MenuNot accessed 10-1,000,000 second range Value of 0 disables this function10User Interface Forwarding Table Configuration MenuForwarding Table Configuration Menu Descriptions Spanning Tree Configuration Menu Spanning Tree ConfigurationScreen Port ID Displays unique identification number of the port12User Interface Spanning Tree Port Configuration MenuSpanning Tree Configuration Menu Descriptions Learning, forwarding, or blocking Spanning Tree Port Configuration DescriptionsTree Port #n Configuration Menu 14User Interface Spanning Tree Port #n Configuration MenuSpanning Tree Port #n Configuration Menu Descriptions Vlan Configuration Menu Vlan Configuration Menu DescriptionsVlan Configuration Vlan16User Interface Vlan MenuVlan Menu Descriptions Vlan #n Configuration Menu Vlan Configuration #n Menu DescriptionsEntering a Vlan name is not required Allows you to remove a Vlan Egress PortPort ID Port Name Type Access Vlan Port MenuVlan Port Menu Descriptions 18User InterfaceClass of Service Configuration Menu Class of Service Configuration Menu DescriptionsPort Priority Configuration Menu Descriptions READ/WRITE Port ID Port Name Priority DefaultPort Priority Menu 20User InterfaceDisconnected Port MenuPort Menu Port Menu Descriptions 22User InterfacePort identification number Yes or NoPort Configuration Menu Descriptions EnableAre eligible for configuration Port 1 ConfigurationSwitch Statistics Screen Switch StatisticsID Transmitted Received Forwarded Filtered Dropped Errored 24User InterfaceSwitch Statistics Screen Descriptions 26User Interface Switch Summary ScreenSwitch Summary Screen Descriptions Port 1 Statistics Port Statistics ScreenPort Statistics Screen Descriptions 28User Interface Or reset Power Up CountGeneral Information Screen General Information Screen Descriptions30User Interface Download Software MenuDownload Software Menu Descriptions Logout Save Current ConfigurationReturn to Default Configuration Reset 32User InterfaceConfiguring and Monitoring Switch Common TasksSetting Password Protection 2Configuring and Monitoring the SwitchAssigning an IP Address Checking Network Configuration StatusConnecting via Telnet Setting Snmp Management Access 4Configuring and Monitoring the SwitchViewing Switch Statistics Configuring Port MirroringDownloading Via the Serial Port Downloading a Software Upgrade6Configuring and Monitoring the Switch Downloading Via Tftp Configuring Spanning Tree Parameters 8Configuring and Monitoring the SwitchConfiguring VLANs Configuring Class of ServiceConfiguring Port Operation 10Configuring and Monitoring the SwitchConfiguring the Forwarding Table 12Configuring and Monitoring the Switch Configuring Broadcast Cutoff Rate Setting a Default GatewayConfiguring BootP/DHCP 14Configuring and Monitoring the SwitchLetxiv 8LI72144VSXSGSP3FNIGXW 72141EREKIQIRXSQTEU777YEP7TIIH7MXGL9WIV+YMHI XLIVRIX1 4VSTVMIXEV1-&\XIRWMSRW 8LITSVX0%2-4-JSVXLMWTSVX 7MXGLPER-H 2RYQFIVSV4SVXWMRXLI0%2 SQTMPMRK1-&\XIRWMSRW 4SVX8EFPIEVMEFPIWCertification GeneralStandards Compliance Environmental Specifications Electrical SpecificationsData Rate PhysicalPort Specifications MemoryConsole Port Table A-1 RS-232 Console Port Pin AssignmentsMDI/MDI-X Crossover Cable Wiring 4Technical Specifications10Base-T and 100Base-TX Ports Table A-2 10Base-T/100Base-TX Pinouts+IRIVEP 7TERRMRK8VII*IEXYVIW7TERRMRK8VII4VSXSGSPMRE2IXSVO 7TERRMRK8VII4VSXSGSP4EVEQIXIVW 7TERRMRK8VII4VSXSGSPIJEYPXW 4SVX7TERRMRK8VII4VSXSGSP3TIVEXMSR SQQYRMGEXMRK&IXIIR&VMHKIW6IQETTMRK2IXSVO8STSPSK Appendix C VLANs and Frame TaggingVlan Access Ports 2Virtual Lans VLANsVlan Hybrid Ports Figure C-3AVLAN Hybrid Ports Examples 1Vlan Application Example 4Virtual Lans VLANsFigure C-4VLAN Application Example using SW3323 Switches TTIRHM\ PEWWSJ7IVZMGI PEWWSJ7IVZMGI TTIRHM\ GVSRQWERH%FFVIZMEXMSRW RXD TTIRHM\ 6IKYPEXSVSQTPMERGI EREHMER2SXMGI ZmwerehmirYVSTIER9RMSR92SXMGI ETERIWI2SXMGI 8EMERIWI2SXMGIRHI\ RHI\ Product Overview RHI\ SQTEU777YEP7TIIH7MXGL9WIV+YMHI RHI\