Vlan And S-Vlan Configurations; Figure 38: Interface Stacking For Vlans Over Bridged Ethernet - Juniper JUNOSE SOFTWARE 11.0.X - LINK LAYER CONFIGURATION GUIDE 4-1-2010 Configuration Manual

VLAN and S-VLAN Configurations

Bridged Ethernet interfaces on E Series routers support the configuration of virtual
local area networks (VLANs) and stacked virtual local area networks (S-VLANs). A
VLAN permits multiplexing multiple higher-level protocols over a single physical port.
An S-VLAN provides a two-level VLAN tag structure, which extends the VLAN ID space
to more than 16 million VLAN tags.
Specifically, you can statically configure the following higher-level protocols over a
VLAN or an S-VLAN subinterface that is stacked above a bridged Ethernet interface:
Figure 38 on page 395 illustrates the interface stacking supported on E Series routers
for VLANs over bridged Ethernet.

Figure 38: Interface Stacking for VLANs over Bridged Ethernet

VLANs and S-VLANs configured over bridged Ethernet interfaces provide the same
basic capabilities as VLANs and S-VLANs configured over Ethernet interfaces, with
the following exception:
IP
MPLS
PPPoE
Transparent bridging
Chapter 12: Configuring Bridged Ethernet
Overview
395