Feature Enhancements for MPLS VPN Remote Access
Several new features and enhancements were made to Cisco IOS so that MPLS VPN services could be provisioned over various remote access technologies. Most of these features are incorporated into the detailed examples provided throughout this chapter or are addressed in the later section, “Advanced Features for MPLS VPN Remote Access.” The features can be summarized as follows:
Virtual-profile Cisco Express Forwarding (CEF)— PPP sessions that terminate on a Cisco router through an L2TP tunnel or direct ISDN interface do so via a virtual-access interface. The virtual-access interface is an instance of a virtual-profile or a virtual-template. Each system has a maximum of 25 virtual-templates; virtual-profiles ...
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