EtherHub 1500 System User’s Guide
Hardware Description 2-11
PARTITION/DISABLE
LED Activity Condition Indication
STEADY RED LIGHT PARTITION Indicates port partitioning due to an
abnormal network condition.
BLINKING RED LIGHT DISABLE Indicates the port has been disabled
NO LIGHT OFF Port is in good condition.
F
The PARTITION/DISABLE LEDs are also used as diagnostic LEDs.
Please refer to the
Diagnostic
Test LEDs
section later in this chapter
for more information.
Partition
A port is temporarily partitioned when a line error or too many
collisions are detected on the attached segment. While it is
automatically partitioned, the port continues to receive data
from the segment. However, data is not transmitted onto the
segment. When the problem is corrected or a valid data packet
is received through the port, the port is automatically
reconnected. When partitioning occurs, the port’s
corresponding PARTITION/DISABLE LED will be continually
lit (RED light). Otherwise, this LED should be OFF (unlit).
Disable
Disabling a port is the same as manually partitioning it, except
that you must also manually reconnect it. You can choose to
partition a port even if there is nothing wrong with it. For
example, to prevent a certain device from accessing the network
or to reduce network traffic you may opt to disable the port. No
incoming packet transmission can occur on a disabled port.
Ports can be disabled/enabled using Accton’s AccView/ Open
or the EtherHub 1500 System Configuration Program. They
can also be enabled by activating the factory default settings.
See the section on
Reset Mode in Chapter 4 for information on
reverting to default settings.
