Cisco OL-21636-01 - Manual (Page 144)

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Cisco IP Solution Center L2VPN and Carrier Ethernet User Guide, 6.0
OL-21636-01
Chapter 7 Creating an L2VPN Policy
Defining an Ethernet EWS (EPL) Policy with a CE
Figure 7-11 Ethernet EWS (EPL) with CE Policy Attributes
Step 2 Check the Standard UNI Port check box to enable port security.
This is the default. When you uncheck the check box, the port is treated as an uplink with no security
features, and the window dynamically changes to eliminate items related to port security.
Note The Standard UNI Port attribute will be unavailable within service requests based on this policy if the
UNI is on an N-PE device running IOS XR.
Note In previous releases, the only Layer 2 VPN support for EWS (EPL) was from EWS (EPL) to EWS (EPL).
In ISC 4.1.2 and later, support is also from EWS (EPL) to Network to Network Interface (NNI) as a trunk
port. To create this new type of service request, you need to create an EWS (EPL) “hybrid” policy by
unchecking the standard UNI flag. When using the EWS (EPL) hybrid policy for service request
creation, check the Standard UNI Port flag for the EWS (EPL) side of the connection and uncheck the
standard UNI flag for the NNI side of the connection.
Note In the case of hybrid services, UNI on an N-PE running IOS XR is not supported.