Cisco OL-21636-01 - Manual (Page 129)

C H A P T E R
7-1
Cisco IP Solution Center L2VPN and Carrier Ethernet User Guide, 6.0
OL-21636-01
7
Creating an L2VPN Policy
This chapter covers the basic steps to create an L2VPN policy. It contains the following sections:
• Defining an L2VPN Policy, page 7-1
• Defining an Ethernet ERS (EVPL) Policy with a CE, page 7-3
• Defining an Ethernet ERS (EVPL) Policy without a CE, page 7-9
• Defining an Ethernet EWS (EPL) Policy with a CE, page 7-15
• Defining an Ethernet EWS (EPL) Policy without a CE, page 7-22
• Defining a Frame Relay Policy with a CE, page 7-28
• Defining a Frame Relay Policy without a CE, page 7-31
• Defining an ATM Policy with a CE, page 7-33
• Defining an ATM Policy without a CE, page 7-36
Defining an L2VPN Policy
You must define an L2VPN policy before you can provision a Cisco IP Solution Center (ISC) service.
An L2VPN policy defines the common characteristics shared by the end-to-end wire attributes and
Attachment Circuit (AC) attributes.
A policy is a template of most of the parameters needed to define an L2VPN service request. After you
define it, an L2VPN policy can be used by all the L2VPN service requests that share a common set of
characteristics. You create a new L2VPN policy whenever you create a new type of service or a service
with different parameters. L2VPN policy creation is normally performed by experienced network
engineers.
A policy can be shared by one or more service requests that have similar service requirements. The
Editable check box gives the network operator the option of making a field editable. If the value is set
to editable, the service request creator can change to other valid values for the particular policy item. If
the value is not set to editable, the service request creator cannot change the policy item.
The four major categories of an L2VPN policy correspond to the four major services that L2VPN
provides:
• Point-to-point Ethernet Relay Service (ERS). The Metro Ethernet Forum (MEF) name for this
service is Ethernet Virtual Private Line (EVPL). See
Layer 2 Terminology Conventions, page E-1
for more information about terms used to denote L2VPN services in this guide.
• Point-to-point Ethernet Wire Service (EWS). The MEF name for this service is Ethernet Private Line
(EPL).