Understanding Bridging And Vlans On Ex Series Switches; Ethernet Lans, Transparent Bridging, And Vlans; Bridging And Vlans—Overview - Juniper JUNOS OS 10.3 - SOFTWARE Manual

CHAPTER 57
Bridging and VLANs—Overview

Understanding Bridging and VLANs on EX Series Switches

Ethernet LANs, Transparent Bridging, and VLANs

Copyright © 2010, Juniper Networks, Inc.
Understanding Bridging and VLANs on EX Series Switches on page 1283
Understanding Private VLANs on EX Series Switches on page 1289
Understanding Virtual Routing Instances on EX Series Switches on page 1290
Understanding Redundant Trunk Links on EX Series Switches on page 1291
Understanding Q-in-Q Tunneling on EX Series Switches on page 1293
Understanding Multiple VLAN Registration Protocol (MVRP) on EX Series
Switches on page 1296
Understanding Layer 2 Protocol Tunneling on EX Series Switches on page 1299
Understanding Proxy ARP on EX Series Switches on page 1301
Understanding MAC Notification on EX Series Switches on page 1302
Network switches use Layer 2 bridging protocols to discover the topology of their LAN
and to forward traffic toward destinations on the LAN.
This topic explains the following concepts regarding bridging and VLANs on Juniper
Networks EX Series Ethernet Switches:
Ethernet LANs, Transparent Bridging, and VLANs on page 1283
How Bridging Works on page 1284
Types of Switch Ports on page 1286
IEEE 802.1Q Encapsulation and Tags on page 1286
Assignment of Traffic to VLANs on page 1286
Ethernet Switching Tables on page 1287
Layer 2 and Layer 3 Forwarding of VLAN Traffic on page 1287
GVRP and MVRP on page 1287
Routed VLAN Interface on page 1288
Ethernet is a data link layer technology, as defined by Layer 2 of the Open Systems
Interconnection (OSI) model of communications protocols. Ethernet was first
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