Table of Contents
Advertisement
Chapter 4: LANVIEW LEDs
4.2
DELHF-UA LED STATE DEFINITIONS
•
Through-A -
port A (primary ring in) and exiting through port B (primary ring out).
The secondary ring is isolated from the MAC with the flow entering
from port B (secondary ring in) and exiting through port A (secondary
ring out).
•
Through-B -
port B (primary ring in) and exiting through port A (primary ring out).
The secondary ring is isolated from the MAC with the flow entering
from port A (secondary ring in) and exiting through port B (secondary
ring out).
The flow of the primary ring is entering through port A
•
Wrap-A -
(primary in) and is wrapped by the DELHF-UA, causing the ring to
exit through port A (secondary out). Port B is disconnected from the
ring. If the DELHF-UA LED state indicates "Wrap-A" the ring has
lost the redundancy of the secondary ring due to the wrapped
condition. This configuration should be repaired, as additional
problems could isolate stations from the FDDI ring.
The flow of the primary ring is entering through port B
•
Wrap-B -
(secondary in) and is wrapped by the DELHF-UA, causing the ring to
exit through port B (primary out). Port A is disconnected from the
ring. If the DELHF-UA LED state indicates "Wrap-B" the ring has
lost the redundancy of the secondary ring due to the wrapped
condition. This configuration should be repaired, as additional
problems could isolate stations from the FDDI ring.
Both port A and port B are isolated from the ring.
•
Isolated -
•
Dual Homed (Default) -
through port B (primary in) and is wrapped by the DELHF-UA,
causing the ring to exit through port B (secondary out). Port A is in
standby mode, and will take over the functions of port B if port B
leaves the ring. This LED sequence is the default setting if the
DELHF-UA is configured to be a dual homed device.
4-4
The flow of the primary ring is entering the MAC from
The flow of the primary ring is entering the MAC from
The flow of the primary ring is entering
DELHF-UA User's Guide
Advertisement
Table of Contents
