2. Features
Basic Switching Functions
8-port switch controller with transceiver for
10Base-T and 100Base-TX with:
8-port 10/100M UTP
Non-blocking wire-speed reception and
transmission and non-head-of-line-blocking
forwarding
Complies with IEEE 802.3/802.3u
auto-negotiation
Built-in high efficiency SRAM for packet
buffer, with 2K-entry lookup table and two
4-way associative hash algorithms
2K byte maximum packet length
Flow control fully supported:
Half duplex: Back pressure flow control
Full duplex: IEEE 802.3x flow control
Service Quality
Supports high performance QoS function on
each port:
Supports 4-level priority queues
Weighted round robin service
Supports strict priority
Input/Output port bandwidth control
Queue based bandwidth control
1Q-based, Port-based, DSCP-based, IP
address-based, and other types of priority
assignments
Supports IEEE 802.1p Traffic Re-marking
Security and Management
Supports reserved control frame filtering
8-Port 10/100Mbps Ethernet Switch Controller
RTL8309N
Datasheet
Supports advanced storm filtering
Optional EEPROM interface for
configuration
VLAN Functions
Supports up to 16 VLAN groups
Flexible 802.1Q port/tag-based VLAN
Supports four IVLs
Leaky VLAN for
unicast/multicast/broadcast/ARP packets
Power Saving Functions
Supports Energy-Efficient Ethernet (EEE)
function (IEEE 802.3az)
Link down Power Saving Mode
Diagnostic Functions
Supports hardware loop detection function,
with LEDs to indicate the existence of a
loop
Supports cable diagnosis (RTCT function)
LED indicators:
Loop status indication
RTCT status indication
LEDs blink upon reset for LED
diagnostics
Other Features
Optional MDI/MDIX auto crossover for
plug-and-play
Physical layer port Polarity Detection and
Correction function
1
Track ID:
Rev. 1.0