TP-Link TG-3468 - Manual (Page 7)

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¾ Microsoft NDIS5 Checksum Offload (IP, TCP, UDP) and
Largesend Offload support
¾ Support Full Duplex flow control (IEEE802.3X)
¾ Support IEEE 802.1p Layer 2 Priority Encoding and
IEEE802.1Q VLAN tagging
¾ Support power down/link down power saving
1.3 LED Status
There are four LEDs, including a 10Mbps Link/Act LED, a
100Mbps Link/Act LED, a 1000Mbps Link/Act LED and a Full
Duplex Mode LED.
¾ The Link/Act LEDs of TG-3468 PCI-E 10/100/1000M LAN
Card indicates Link/Act status. They will light when
connection has been built, and glitter when the adapter
transmits or receives data.
¾ The Full Duplex LED will light when the adapter works in full
duplex.