Intel 210T manual Understanding 220T Hubs, 220T Port LEDs, Partitioned ports, Status, Meaning

Understanding 220T Hubs

220T Port LEDs

The LEDs above each port provide information about the port’s configuration and status.

Left side: Orange/ Green

Right side: Yellow

LED	Status	Meaning
Left	Solid orange	Device linked at 10Mbps.
	Solid green	Device linked at 100Mbps.
	Blinking orange	Receive activity at 10Mbps.
	Blinking green	Receive activity at 100Mbps.
	Off	No link detected.
Right	Solid yellow	Port disabled by management (not applicable
		without optional Management Module).
	Blinking yellow	Speed mismatch (not applicable without
		optional Management Module).
	Erratic blinking yellow	Port auto-disabled (partitioned). See below.
	Blinking yellow and	Out-of-specification cabling or port hardware
	Status LED blinking	problem. Try a different cable.

Partitioned ports

A port is automatically disabled (partitioned) by the hub when an invalid condition occurs, such as too many consecutive collisions.

Once the hub sees a valid packet of data from the device or is able to transmit data to the port, the hub automatically re-enables (unpartitions) the port. Clients are usually not affected by a partitioned port because the port is often unpartitioned very quickly.

Usually, a partitioned port indicates an overloaded network or a malfunctioning device (like an adapter card) on the network. To alleviate an overloaded network, segment so that fewer devices share the fixed amount of bandwidth.

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