The LAN9303M-AKZE is a 3 port 10/100 managed Ethernet Controller combines all the functions of a 10/100 switch system, including the switch fabric, packet buffers, buffer manager, media access controllers (MACs), PHY transceivers and serial management. It is complies with the IEEE 802.3 (full/half-duplex 10Base-T and 100Base-TX) Ethernet protocol specification and 802.1D/802.1Q network management protocol specifications, enabling compatibility with industry standard Ethernet and Fast Ethernet applications. It is the high performance, high efficiency 3 port Ethernet SWITCH FABRIC. The Switch Fabric contains a 3 port VLAN layer 2 Switch Engine that supports untagged, VLAN tagged and priority tagged frames. The switch fabric provides an extensive feature set which includes spanning tree protocol support, multicast packet filtering and Quality of Service (QoS) packet prioritization by VLAN tag, destination address, port default value or DIFFSERV/TOS.
● Serial management via I²C or SMI
● 32k buffer RAM
● 512 Entry forwarding table
● IEEE 802.1d spanning tree protocol support
● 4 Separate transmit queues available per port
● Fixed or weighted egress priority servicing
● Programmable traffic class map based on input priority on per port basis
● Remapping of 802.1Q priority field on per port basis
● Programmable rate limiting at the egress with leaky bucket algorithm, per port / priority
● IGMP v1/v2/v3 monitoring for Multicast packet filtering
● Programmable broadcast storm protection with global % control and enable per port
● Programmable buffer usage limits
● Dynamic queues on internal memory
● Programmable filter by MAC address
● Full transmit/receive statistics
● Full LED support per port
● Auto-negotiation
● Automatic polarity correction
● Automatic MDI/MDI-X
● Loop-back mode
