Autonegotiation (formerly NWay) is an Ethernet procedure by which two connected devices choose common transmission parameters, such as speed and duplex mode. In this process, the connected devices first share their capabilities as for these parameters and then choose the fastest transmission mode they both support. In the OSI model, autonegotiation resides in the physical layer. It was originally defined in the IEEE standard 802.3u in 1995.

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  • Autonegotiation (formerly NWay) is an Ethernet procedure by which two connected devices choose common transmission parameters, such as speed and duplex mode. In this process, the connected devices first share their capabilities as for these parameters and then choose the fastest transmission mode they both support. In the OSI model, autonegotiation resides in the physical layer. It was originally defined in the IEEE standard 802.3u in 1995. It was placed in the fast Ethernet part of the standard but is also backwards compatible to 10BASE-T. However, its implementation was optional, and a part of the specification was open to interpretation. The debatable portions of the autonegotiation specifications were eliminated by the 1998 version of IEEE 802.3. In 1999, the negotiation protocol was significantly extended by IEEE 802.3ab, which specified the protocol for gigabit Ethernet, making autonegotiation mandatory for 1000BASE-T gigabit Ethernet over copper.
  • Autonegotiation bezeichnet ein Verfahren, welches es Netzwerkkarten bzw. HBAs und Netzwerkswitchen ermöglicht, selbständig die korrekte Übertragungsgeschwindigkeit und das Duplex-Verfahren der jeweiligen Gegenstelle, mit der sie verbunden sind, zu erkennen und sich entsprechend zu konfigurieren.
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  • Autonegotiation (formerly NWay) is an Ethernet procedure by which two connected devices choose common transmission parameters, such as speed and duplex mode. In this process, the connected devices first share their capabilities as for these parameters and then choose the fastest transmission mode they both support. In the OSI model, autonegotiation resides in the physical layer. It was originally defined in the IEEE standard 802.3u in 1995.
  • Autonegotiation bezeichnet ein Verfahren, welches es Netzwerkkarten bzw. HBAs und Netzwerkswitchen ermöglicht, selbständig die korrekte Übertragungsgeschwindigkeit und das Duplex-Verfahren der jeweiligen Gegenstelle, mit der sie verbunden sind, zu erkennen und sich entsprechend zu konfigurieren.
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  • Autonegotiation
  • Autonegotiation
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