Supported Layer 2 Networking Standards

Junos OS substantially supports the following standards for Layer 2 networking.

• Institute of Electrical and Electronics Engineers (IEEE) Standard 802.1ab, IEEE Standard for Local and metropolitan area networks—Station and Media Access Control Connectivity Discovery (Link Layer Discovery Protocol (LLDP))

• IEEE Standard 802.1D, IEEE Standard for Local and Metropolitan Area Networks: Media Access Control (MAC) Bridges

  This document includes the standard for Rapid Spanning Tree Protocol (RSTP), which is often referred to as 802.1w. It also discusses Quality of Service (QoS) at the MAC level, often referred to as 802.1p.

• IEEE Standard 802.1X, IEEE Standard for Local and Metropolitan Area Networks—Port-Based Network Access Control

  IEEE 802.1X Port-Based Network Access Control regulates access to the network, guarding against transmission and reception by unidentified or unauthorized parties, and consequent network disruption, theft of service, or data loss.