"BGP-based Auto-Discovery for Layer-1 VPNs", Hamid Ould-Brahim, 8-Feb-08. ( bytes)

The purpose of this document is to define a BGP-based auto-discovery mechanism for Layer-1 VPNs (L1VPNs). The auto-discovery mechanism for L1VPNs allows the provider network devices to dynamically discover the set of PEs having ports attached to CE members of the same VPN. That information is necessary for completing the signaling phase of L1VPN connections. One main objective of a L1VPN auto-discovery mechanism is to support the "single-end provisioning" model, where addition of a new port to a given L1VPN would involve configuration changes only on the PE that has this port and on the CE that is connected to the PE via this port.

"Layer 1 VPN Basic Mode", Don Fedyk, Yakov Rekhter, Richard Rabbat, Lou Berger, 21-Feb-08. ( bytes)

This document describes the Basic Mode of Layer 1 VPNs (L1VPN BM). L1VPN Basic mode is a port-based VPN. In L1VPN Basic Mode (BM), the basic unit of service is a Label Switched Path (LSP) between a pair of customer ports within a given VPN port-topology. This document defines the operational model using either provisioning or a VPN auto-discovery mechanism, and the signaling extensions for the L1VPN BM.

"OSPF Based Layer 1 VPN Auto-Discovery", Igor Bryskin, Lou Berger, 13-May-08. ( bytes)

This document defines an Open Shortest Path First (OSPF) based Layer-1 Virtual Private Network (L1VPN) auto-discovery mechanism. This mechanism enables provider edge (PE) devices using OSPF to dynamically learn about existence of each other, and attributes of configured customer edge (CE) links and their associations with L1VPNs. This document builds on L1VPN framework and requirements, and provides a L1VPN basic mode auto-discovery mechanism.

"Applicability Statement for Layer 1 Virtual Private Networks (L1VPNs) Basic Mode", Adrian Farrel, Hamid Ould-Brahim, Tomonori Takeda, 14-Apr-08. ( bytes)

This document provides an applicability statement on the use of Generalized Multiprotocol Label Switching (GMPLS) protocols and mechanisms to support Basic Mode Layer 1 Virtual Private Networks (L1VPNs). L1VPNs provide customer services and connectivity at layer 1 over layer 1 networks. The operation of L1VPNs is divided into the Basic Mode and the Enhanced Mode where the Basic Mode of operation does not feature any exchange of routing information between the layer 1 network and the customer domain. This document examines how GMPLS protocols can be used to satisfy the requirements of a Basic Mode L1VPN. T.Takeda, et al. Expires October 2008 [page 1] draft-ietf-l1vpn-applicability-basic-mode-05.txt April 2008

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