Understanding Bridging And Vlans On Ex Series Switches; Ethernet Lans, Transparent Bridging, And Vlans; Bridging And Vlans—Overview - Juniper JUNOS OS 10.4 - FOR EX REV 1 Manual

CHAPTER 63
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 1501
Understanding Private VLANs on EX Series Switches on page 1507
Understanding Virtual Routing Instances on EX Series Switches on page 1511
Understanding Redundant Trunk Links on EX Series Switches on page 1512
Understanding Q-in-Q Tunneling on EX Series Switches on page 1514
Understanding Multiple VLAN Registration Protocol (MVRP) on EX Series
Switches on page 1517
Understanding Layer 2 Protocol Tunneling on EX Series Switches on page 1520
Understanding Proxy ARP on EX Series Switches on page 1522
Understanding MAC Notification on EX Series Switches on page 1523
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 1501
How Bridging Works on page 1502
Types of Switch Ports on page 1504
IEEE 802.1Q Encapsulation and Tags on page 1504
Assignment of Traffic to VLANs on page 1504
Ethernet Switching Tables on page 1505
Layer 2 and Layer 3 Forwarding of VLAN Traffic on page 1505
GVRP and MVRP on page 1505
Routed VLAN Interface on page 1506
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
1501