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VLAN Stacking Overview
Configuring VLAN Stacking
page 9-6
OmniSwitch AOS Release 6 Network Configuration Guide
September 2009
VLAN Stacking Services
The VLAN Stacking application uses an Ethernet service based approach for tunneling customer traffic 
through a provider network. This approach requires the configuration of the following components to 
define a tunneling service:
• VLAN Stacking Service—A service name that is associated with an SVLAN, NNI ports, and one or 
more VLAN Stacking service access points. The service identifies the customer traffic that the SVLAN 
will carry through the provider traffic.
• Service Access Point (SAP)—A SAP is associated with a VLAN Stacking service name and a SAP 
profile. The SAP binds UNI ports and customer traffic received on those ports to the service. The 
profile specifies traffic engineering attribute values that are applied to the customer traffic received on 
the SAP UNI ports.
• Service Access Point (SAP) Profile—A SAP profile is associated with a SAP ID. Profile attributes 
define values for ingress bandwidth sharing, rate limiting, CVLAN tag processing (translate or 
preserve), and priority mapping (inner to outer tag or fixed value).
• UNI Port Profile—This type of profile is associated with each UNI port and configures how Span-
ning Tree, GVRP, and other control packets are processed on the UNI port.
 for more information.