较全面的介绍了以太网的相关知识，包括以太网的物理层、数据链路 层、VLAN、千兆以太网、生成树协议等-Introduced a more comprehensive knowledge of Ethernet, including Ethernet physical layer, data link layer, VLAN, Gigabit Ethernet, Spanning Tree Protocol, etc.

Brush Electronics Ethernet Bootloaders have been developed to deliver a rapid development environment for an Ethernet enabled Microchip Flash Memory based PIC Microcontroller and to support remote firmware upgrade for these systems deployed in the fi