Intel 100BASE-T4 manual Unit Numbering Convention, Partitioned Ports

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C H A P T E R 3 Intel Express 100BASE-T4 Stackable Hub

NOTE

A stack of Express Stackable Hubs can contain a maximum of six hubs.

Unit Numbering Convention

When Express Hubs are stacked, cascaded, and powered, they are assigned “unit” numbers that are stored in the hub’s nonvolatile memory. Hub numbers are assigned according to a hub’s physical location in the stack. The NMM assigns numbers from the top down— the hub at the top of the stack is numbered 1, the hub below hub 1 is numbered 2, and so on.

In a fully equipped stack, hubs are assigned numbers 1 through 6. You can identify the unit numbers of the hubs in the stack using network management software such as Intel LANDesk® Network Manager.

As you build your stack to include more hubs, each hub you add is assigned a unit number according to its position in the stack after the NMM is reset or the stack is renumbered through network management software.

Partitioned Ports

When the Express Stackable Hub detects a large number of consecutive collisions on a port, it automatically disables, or partitions, that port. These collisions often occur due to excessive traffic or a malfunctioning port or network adapter. After the problem is corrected, the port is automatically re-enabled.

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Contents User Guide First edition August Second edition Contents Index Customer Support Inside back cover Install the hubs Plug power cords into each hub, then check LEDsQuick Start Connect the stackFeatures OverviewRJ-45 100BASE-T4 ports Physical DescriptionFront panel LED matrix PwrStat ColData % MediaAdapter ExpansionRear panel Power receptacleCascade connectors Expansion slot Optional equipmentMedia adapter slot Requirements InstallingExpress Hub Installing a Single Hub A P T E R 2 Intel Express 100BASE-T4 Stackable HubA P T E R 2 Installing the Express Hub Stacking HubsInstalling Uplink Modules Removing a Hub from a StackAdding a Network Management Module NMM DevicesConnecting Connecting Cables to the HubChecking the LEDs LED Color Status indicationsUnit Numbering Convention Partitioned PortsUsing a Switch to Connect Hubs Connecting to 100BASE-TX devices 100BASE-TX Uplink ModuleRouting server Connecting to 100BASE-FX devicesConnecting to 10BASE-T devices 100BASE-TX Uplink Module and 10/100 switching hub 100BASE-TX Uplink Module and 10/100 DownlinkTopology Rules Physical Layer Media SpecificationsFast Ethernet Basic Rules Distance limitations100BASE-T4 and 100BASE-TX 100BASE-T4 and 100BASE-FXRepeater rules Network Topology Extensions Fast Ethernet Topology Rules P E N D I Specifications Optional EquipmentTechnical Optional EquipmentNetwork Management Module NMM Cascade cablesTechnical Specifications Interface Options Safety Agency ApprovalsRepeater Type Statement of Conditions Electromagnetic EmissionsElectromagnetic Susceptibility Voluntary Control Council for Interference Vcci StatementAvertissement Avvertenza Limitation of liability and remedies Limited WarrantyReturning a defective product Index 100BASE-TUTP NMM 100BASE-FX 100BASE-TX Intel Automated Customer Support