标题: IEEE 802.3-2015 - IEEE Standard for Ethernet [打印本页] 作者: yy480 时间: 2018-9-17 12:54:21 标题: IEEE 802.3-2015 - IEEE Standard for Ethernet
[attach]180232[/attach][attach]180231[/attach][attach]180230[/attach][attach]180229[/attach] 802.3-2015 - IEEE Standard for Ethernet
This standard defines Ethernet local area, access and metropolitan area networks. Ethernet is specified at selected speeds of operation; and uses a common media access control (MAC) specification and management information base (MIB). The Carrier Sense Multiple Access with Collision Detection (CSMA/CD) MAC protocol specifies shared medium (half duplex) operation, as well as full duplex operation. Speed specific Media Independent Interfaces (MIIs) provide an architectural and optional implementation interface to selected Physical Layer entities (PHY). The Physical Layer encodes frames for transmission and decodes received frames with the modulation specified for the speed of operation, transmission medium and supported link length. Other specified capabilities include: control and management protocols, and the provision of power over selected twisted pair PHY types. 作者: admin 时间: 2018-9-19 10:58:03