Intel 220T Manual De Usuario
6
Understanding 210T Hubs
210T Port LEDs
The LEDs above each port provide information about the port’s
configuration and status.
configuration and status.
LED
Status
Meaning
Left
Solid green
Port has a link.
Blinking green
Receive activity at port.
Off
No link detected.
Right
Solid yellow
Port disabled by management (not applicable
without optional Management Module).
without optional Management Module).
Blinking yellow
Speed mismatch. Check that device speed
and hub speed match.
and hub speed match.
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 off) by the hub when an invalid
condition occurs, such as too many consecutive collisions.
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.
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.
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.
Left side:
Green
Green
Right side:
Yellow
Yellow