Gigabit Ethernet Aggregation TAP (USB)
USR4524 - Installation Guide
©2021 USRobotics, a Division of UNICOM Global | www.usr.com
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Link Failure Propagation (LFP) :
•
LFP is used mostly for High Availability (HA) designed networks.
•
LFP applies to Network ports only.
•
When enabled, LFP can sense a network failure and reflect the failure to the adjacent port of the live network allowing the
network’s failover mechanism to switch over to the secondary network path.
•
LFP ensures an instant switch to the secondary link to maintain 100% uptime.
Configuration/DIP Switch Example
•
This TAP operates in
Aggregation mode, which
combines traffic from both port A and port B and
transmits an aggregated copy from the USB monitor
port.
LEDs
The USR4524 has 4 LED indicators - 2 for each port as
shown to the right.
LED
Status
Meaning
LNK
ON
Link is active
FLASHING
Link is active and packets are flowing
OFF
Link is not active
LFP A
LFP B
LFP
Sync enabled
ON
OFF
Network speed of ports A/B is 1G
OFF
ON
Network speed of ports A/B is 100M
OFF
OFF
Network speed of ports A/B is 10M
Sync disabled
LFP enabled
ON
OFF
Link A failure is detected
OFF
ON
Link B failure is detected
OFF
OFF
Link failure is not detected
Sync disabled
LFP disabled
OFF
OFF
LFP is disabled
USB 3.0
LFP
LNK LFP
LNK
A
B
USB 3.0
LFP
LNK LFP
LNK
C
Monitor Tool
Router
Switch
A
B
Network Ports
