Alcatel-Lucent OmniSwitch 6800 Series Network Configuration Manual page 120

VLAN Stacking Overview
Provider
LAN
Customer A
Site 1
Customer B
Site 1
NNI Port
UNI Port (service-based VLAN Stacking)
User-Customer Port (port-based VLAN Stacking)
NNI Port (service-based VLAN Stacking)
User-Provider Port (port-based VLAN Stacking)
page 6-6
EMAN
Provider Edge 1
VLAN Stacking Elements
OmniSwitch 6800/6850/9000 Network Configuration Guide
Provider Edge 2
Transit Bridge
Provider Edge 3
Configuring VLAN Stacking
Customer A
Site 2
Customer B
Site 2
March 2008