The RTL8332M and RTL8332L are new generation Fast Ethernet switches supporting Energy Efficient Ethernet (EEE). The RTL8332M/RTL8332L are 24-port FE switch controllers with embedded 8-port FE PHYs. The RTL8332M/RTL8332L are provided via a 55nm CMOS process in an LQFP-216 E-PAD package. The Memory interface of the RTL8332M supports DDR1/DDR2/DDR3 and SPI Flash.
The RTL8332M/RTL8332L support two pairs of serially connected XSMII interface ports to connect to two Octal FE PHYs (RTL8208L). The RTL8332M also supports one serially connected QSGMII interface port to connect to 1 Quad Gigabit PHY (RTL8214B).
The RTL8332M/RTL8332L have an embedded 500MHz MIPS-4KEc CPU that supports a 32MByte SPI flash (max.). The Memory interface of the RTL8332M supports DDR1/DDR2/DDR3. Two 16C550 compatible UARTs are integrated for low speed serial data, and one E-JTAG is supported for on-chip debugging.
There are 8K entries in the 4-way hash L2 table for MAC address learning and searching. The RTL8332M/RTL8332L support two hash algorithms. An independent 512-entry Multicast table supports Layer 2 and IP multicast functions.
The RTL8332M/RTL8332L have a 4K-entry VLAN table for 802.1Q port-based, protocol-and-port-based, 802.1Q-based, IP-subnet-based, and ACL Rules-based VLAN operation to separate logical connectivity from physical connectivity. Support is provided for IVL (Independent VLAN Learning), SVL (Shared VLAN Learning), and IVL/SVL (both Independent and Shared VLAN Learning) for flexible network topology architecture. The RTL8332M/RTL8332L support a 1.5K-entry Access Control List (ACL) that parses various protocol packet types and performs configurable actions, e.g., Permit/Drop, redirect, and traffic policing.
The RTL8332M/RTL8332L support per-port ingress/egress bandwidth control and per-queue egress bandwidth control. There are 8 physical queues in each port.
The RTL8332M/RTL8332L provides three types of packet scheduling; SP (Strict Priority), WFQ (Weighted Fair Queuing), and WRR (Weighted Round Robin). Each queue provides a leaky-bucket to shape the incoming traffic into the average rate behavior.
Port-based 802.1X and MAC-based 802.1X authentication prevent unauthorized users from accessing internal servers. The RTL8332M/RTL8332L support port isolation to enhance port security. The RTL8332M/RTL8332L also support a 4-set port mirror configuration to mirror ingress and egress traffic. For network management purposes, complete MIB counter support reflects the switch status in real time. Support is provided for link aggregation to increase link redundancy, and increase linear bandwidth.
The RTL8332M/RTL8332L adopts advanced technologies such as Realtek Cable Test (RTCT), Automatic loop detection and prevention (RLPP/RLDP), Attack Prevention, and MAC Address Learning Constraints. The RTL8332M/RTL8332L supports Energy Efficient Ethernet (EEE).