Name: draft-ietf-l2vpn-vpls-ldp-applic-00
Title: VPLS Applicability
State: Active
Authors: Marc Lasserre
Group: Layer 2 Virtual Private Networks (l2vpn)
Date: 2004-10-18
Virtual Private LAN Service (VPLS) is a layer 2 VPN service that provides
multipoint connectivity in the form of an Ethernet emulated LAN, while
usual L2 VPN services are typically point-to-point. Such emulated LANs can
span across metropolitan area networks as well as wide area networks.
PEs of a VPN and a method for forwarding Ethernet frames over such
connections. This document describes the applicability of such procedures
to provide VPLS services. This document also compares the characteristics
of this solution against the requirements specified in [L2VPN-REQ]. In
summary, there are no architectural limitations to prevent the requirements
from being met. But meeting certain requirements (e.g. QoS) is beyond the
specification of [VPLS-LDP], and requires careful planning and precise
implementation of the Service Provider (SP) networks. This document
attempts to capture such issues, presents the potential solutions to these
issues, and discusses the pros and cons of each alternative. This document
does not cover the applicability of [VPLS-BGP].
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