MARVELL 88E6155-A2-LKJ1C000: Advanced Gigabit Ethernet Switch Controller
The MARVELL 88E6155-A2-LKJ1C000 represents a highly integrated, feature-rich Gigabit Ethernet switch controller designed to meet the demanding requirements of modern enterprise, industrial, and carrier-grade networking equipment. This system-on-chip (SoC) solution combines high-performance data switching with advanced management capabilities, making it a cornerstone for building robust, scalable, and intelligent network infrastructures.
At its core, the 88E6155 is an 8-port Gigabit Ethernet switch, supporting both copper and fiber interfaces. It leverages a non-blocking switch fabric architecture to ensure wire-speed performance on all ports simultaneously, which is critical for bandwidth-intensive applications and prevents bottlenecks in high-traffic environments. The integration of Marvell's Prestera® architecture provides exceptional packet processing efficiency, enabling advanced features such as Quality of Service (QoS), Access Control Lists (ACLs), and sophisticated traffic management.
A key strength of this controller is its robust support for Layer 2 switching and Layer 3 routing functionalities. It implements comprehensive MAC address learning and aging, VLAN tagging (including port-based and protocol-based VLANs), and rapid spanning tree protocol (RSTP) for creating redundant, loop-free network topologies. For more complex network segmentation and policy enforcement, it offers advanced security features like hardware-based ACLs that can filter traffic based on L2/L3/L4 information without impacting switching performance.
The 88E6155-A2-LKJ1C000 is particularly noted for its sophisticated traffic management and prioritization schemes. It supports eight priority queues per port, allowing network administrators to implement granular QoS policies. This ensures that latency-sensitive traffic, such as voice over IP (VoIP) and video conferencing, is prioritized over standard data traffic, guaranteeing a high quality of user experience (QoE).
From a management perspective, the device offers flexible options including a comprehensive Serial Management Interface (SMI) and an IEEE 802.3ap compliant Management Data Input/Output (MDIO) interface. This facilitates easy control and configuration of the PHYs and switch core. For deeper integration and control, it also supports an SPI (Serial Peripheral Interface) or I2C host interface for register programming.
Designed for reliability, the chip incorporates energy-efficient Ethernet (EEE) capabilities, reducing power consumption during periods of low data activity. Its industrial temperature range support makes it suitable for deployment in harsh environments beyond standard office settings.
ICGOODFIND: The Marvell 88E6155-A2-LKJ1C000 stands out as a powerful and versatile foundation for next-generation networking gear, offering an optimal blend of high-speed switching, advanced feature integration, and robust management for scalable network designs.
Keywords: Gigabit Ethernet Switch, Quality of Service (QoS), Layer 3 Routing, Traffic Management, VLAN Tagging.
