Express Ethernet SwitchLB9019A-R2
7
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QoS (Quality of Service) Status
The LEDs displaying status for Layer 3 IP Header priority, Layer 2 VLAN Tagging priority, and
Port 1~6 Port based priority.
L
Before you use this table for troubleshooting, make sure the switch is properly connected to power
and turned on.
Physical Ports
The 16 Ports QoS Switch has sixteen 10/100Mbps ports using RJ-45 connectors with AUTO MDIX
function.
Understanding Front Panel Design
On
Power feeding in
Power switched off
Power LED
Off
Improper connection
On
A valid network connection
LNK stands for LINK
Flashing Transmitting or receiving data
ACT stands for ACTIVITY
LNK/ACT
Off No
connection
On
Full duplex mode
FDX stands for Full Duplex
Flashing Collision
occurred
COL stands for Collision
Port LED
FDX/COL
Off
Half duplex mode
On
Layer 3 IP Header priority on
IP
Off
Layer 3 IP Header priority off
On
Layer 2 VLAN Tagging priority on
VLAN
Off
Layer 2 VLAN Tagging priority off
On
Port 1~6 Port based priority on
QoS Status
LED
Port 1~6
Off
Port 1~6 Port based priority off
