![](https://csdnimg.cn/release/download_crawler_static/89462021/bg1.jpg)
ccess Link Connection) 接入链路链接
(Bidirectional flooding) 双向泛洪
(E-LAN Services) 以太局域网服务
(Spanning Tree) 生成树
(Trunk-Link Connection) 中继链路链接
(Unidirectional flooding) 单向泛洪
(Unshilded Twisted Pair) 无屏蔽双绞线
AC (Acknowledge Connectionless)应答帧
CSMA/CD ( Carrier Sense Multiple Access/Collision
Detection)载波侦听多路访问
EIR (Excess Information Rate)超信息速率
EPL (Ethernet Private Line)以太网专用线
FD (Forward Delay) 转发延迟
GEA (Gibabit Ethernet Alliance) 千兆以太网联盟
HDLC (Hight Data Link Control ) 高级数据链路控制
LAN (Local Area Network) 传统局域网
LLC (Logical Access Control ) 逻辑链路控制
MAC (Media Access Control) 介质访问控制
MAN ( Metropolitan Area Network) 城域网
MEF (Metro Ethernet Forum) 城域以太网论坛
PBB (Provide Backbone Bridge) 运营商主干网桥
PGP (Provide Bridge Protocol) 网桥协议