1. L2VPN
1.1 L2VPN models
A VPN (Virtual Private Network) is a generic term. It refers to the use of a network (private or public) to interconnect a set of customer sites that are separated from other customer networks.
A Layer 2 VPN (L2VPN) is a VPN where client interconnection is based on the frame level (layer 2 of the OSI model).
It enables client frames to be routed between sites belonging to the same VPN, over a private or public network infrastructure.
acronyms are explained at the end of the article in the Acronyms and Abbreviations table.
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