Home / Case Studies / Design of L2 Gigabit managed switches, 24 ports

A manufacturer of network equipment.

To design a series of Gigabit network switches with Power-over-Ethernet (PoE) support. 16 and 26 port models in metal enclosures in the compact 1U form factor.

Promwad engineering team designed a custom managed L2 switches based on the Realtek 83xx chipset (CPU MIPS-4KEc 32bit@500MHz) and Linux kernel.

L2 switch features:

• Type: L2, managed
• Form factor: 1U
• MAC address table: 8K entries
• RAM: 256 MB
• Energy Efficient Ethernet: IEEE 802.3az

• 24 x 10/100М Ethernet ports
• 4 x Gigabit Ethernet ports
• Power-over-Ethernet (PoE)

• 802.3x flow control
• Loop detection
• Port mirroring
• IGMP snooping
• QoS: 802.1p, DSCP
• VLAN
• 802.1q VLAN

Port-based authentication: 802.1x

• OAM 802.3ah
• Web-interface
• Command Line Interface (CLI)
• Telnet server
• SNMP
• Syslog & RMON

Our customer received a series of new products for simple network management.

Our scope of work included the following services:

• PCB design
• Mechanical design
• Thermal analysis
• Embedded software development
• Web interface for management and control