APCON, Inc.
14
A54-3002-027 • Rev B
Chapter 2 Introduction
Bypass Switch TAP/Aggregator User Manual
that tool would be spread across the remaining Bypass TAP ports. The result would be no loss
in traffic. Recovery in this event would be automatic. As soon as the tool is replaced the
network would heal itself.
In an individual LBG port is lost, the blade automatically handles redistribution of traffic to the
remaining LBG ports and notifies the controller of the loss.
If all LBG ports are lost, the blade notifies the controller of the loss and the connection
switches to Bypass mode.
In either event, W
EB
XR and/or T
ITAN
XR sends an alert notifying of the loss. If the
APCON M
OBILE
A
PP
is configured, the alert is also sent to those users who have been
configured to receive alerts.
Failback Method
This release of the Bypass TAP supports two methods of failback recovery:
• Manual
• Automatic
Manual
The blade can switch from Monitor (Normal) mode to Bypass mode using any one of the
following conditions:
• The internally generated heartbeat packets have not returned within the specified
interval.
• The externally generated heartbeat packets have not arrived within the specified
interval.
• There has been a loss of link.
Thus, network traffic enters the N1 port and departs through the N2 port, bypassing the
Appliance ports, as shown in the following illustration.
