Overview Of Ethernet Solutions; Ethernet Terms And Acronyms - Juniper JUNOS OS 10.4 Manual

CHAPTER 1

Overview of Ethernet Solutions

Ethernet Terms and Acronyms

Copyright © 2012, Juniper Networks, Inc.
Ethernet Terms and Acronyms on page 3
Networking and Internetworking with Bridges and Routers on page 6
Network Addressing at Layer 2 and Layer 3 on page 7
Networking at Layer 2: Benefits of Ethernet Frames on page 9
Networking at Layer 2: Challenges of Ethernet MAC Addresses on page 10
Networking at Layer 2: Forwarding VLAN Tagged Frames on page 11
Networking at Layer 2: Forwarding Dual-Tagged Frames on page 13
Networking at Layer 2: Logical Interface Types on page 14
A Metro Ethernet Network with MX Series Routers on page 15
Layer 2 Networking Standards on page 17
Networking with a switch over Ethernet on a LAN is different than networking with a
router with IP over a wider area. Even the words used to talk about Ethernet networking
are different from those used in IP routing. This topic provides a list of all the terms and
acronyms used in the
Junos OS Layer 2 Configuration Guide
complete network using Ethernet as a carrier technology.
802.1ad—The IEEE specification for "Q-in-Q" encapsulation and bridging of Ethernet
frames.
802.1ah—The IEEE specification for media access control (MAC) tunneling
encapsulation and bridging of Ethernet frames across a provided backbone-managed
bridge.
802.3ag—The IEEE specification for a wide range of Ethernet Operations, Administration,
and Maintenance (OAM) features. See also OAM, CFM, and ETH-DM.
802.3ah—The IEEE specification for link fault management (LFM), a method for OAM
of Ethernet links.
802.1Q—The IEEE specification for adding virtual local area network (VLAN) tags to
an Ethernet frame.
B–MAC—The backbone source and destination MAC address fields found in the IEEE
802.1ah provider MAC encapsulation header.
, as well terms that apply to a
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