Layer 1 Virtual Private Networks (l1vpn)

Last Modified: 2008-04-14

Additional information is available at tools.ietf.org/wg/l1vpn

Chair(s):

  • Adrian Farrel <adrian@olddog.co.uk>

  • Hamid Ould-Brahim <hbrahim@nortel.com>

  • Tomonori Takeda <takeda.tomonori@lab.ntt.co.jp>

    Routing Area Director(s):

  • Ross Callon <rcallon@juniper.net>
  • David Ward <dward@cisco.com>

    Routing Area Advisor:

  • David Ward <dward@cisco.com>

    Mailing Lists:

    General Discussion: l1vpn@ietf.org
    To Subscribe: https://www1.ietf.org/mailman/listinfo/l1vpn
    Archive: http://www.ietf.org/mail-archive/web/l1vpn/index.html

    Description of Working Group:

    The L1VPN Working Group's task is to specify mechanisms necessary for
    providing layer-1 VPN services (establishment of layer-1 connections
    between CE devices) over a GMPLS-enabled transport service-provider
    network.

    The following two service models will be addressed:

    1. Basic mode: the CE-PE interface's functional repertoire is limited
    to
    path setup signalling only. Provider's network is not involved in
    distribution of customer network's routing information.

    2. Enhanced mode: the CE-PE interface provides the signaling
    capabilities as in the Basic mode, plus permits limited exchange of
    information between the control planes of the provider and the customer
    to help such functions as discovery of reachability information in
    remote sites, or parameters of the part of the provider's network
    dedicated to the customer.

    The WG will work on the following items:

    1. Framework document defining the reference network model, L1VPN
    service model, fundamental assumptions, and terminology.

    2. Specification of the L1VPN signaling functionality between the
    customer and the provider network to support the basic mode.

    3. Specification of the L1VPN signaling and routing functionality
    within
    the provider network to support the basic mode.

    4. OAM features and MIB modules and/or extensions required for the
    basic
    mode.

    5. Specification of the L1VPN signaling and routing functionality
    between the customer and the provider network to support the extended
    mode.

    6. Specification of the L1VPN signaling and routing functionality
    within
    the provider network to support the extended mode.

    7. OAM features and MIB modules and/or extensions required for the
    extended mode.

    8. Applicability guidelines to compare the basic and extended modes.

    At this point the WG will address the single-AS scenario only. The
    multi-AS/provider scenario may be considered in future.

    Protocol extensions required for L1VPN will be done in cooperation with
    MPLS, CCAMP, OSPF, IS-IS, IDR, L3VPN, and other WGs where necessary.

    L1VPN WG shall also cooperate with ITU-T SG13 through the established
    IETF process, and use documents Y.1312 and Y.1313 (describing L1VPN
    requirements and network architectures) as input to its design process.
    The documents will be available at the IETF liaison web-site.

    Goals and Milestones:

    Done  Submit first Internet Draft of L1VPN framework
    Done  Submit first Internet Drafts of basic mode specifications
    Dec 2005  Submit first Internet Drafts of MIB modules for basic mode
    Done  Submit basic mode specifications to IESG for publication as Proposed Standard
    Jun 2006  Submit first Internet Drafts of enhanced mode specifications
    Aug 2006  Submit MIB modules for basic mode to IESG for publication as Proposed Standard
    Dec 2006  Submit enhanced mode specifications to IESG for publication as Proposed Standard
    Done  Submit L1VPN framework to IESG for publication as Informational RFC
    Aug 2007  Submit MIB modules for enhanced mode to IESG for publication as Proposed Standard
    Dec 2007  Recharter or disband

    Internet-Drafts:

    OSPFv3 Based Layer 1 VPN Auto-Discovery (23837 bytes)

    Request For Comments:

    Framework and Requirements for Layer 1 Virtual Private Networks (RFC 4847) (85807 bytes)
    BGP-based Auto-Discovery for Layer-1 VPNs (RFC 5195) (21480 bytes)
    Layer 1 VPN Basic Mode (RFC 5251) (57599 bytes)
    OSPF-Based Layer 1 VPN Auto-Discovery (RFC 5252) (23232 bytes)
    Applicability Statement for Layer 1 Virtual Private Network (L1VPNs) Basic Mode (RFC 5253) (42675 bytes)
    IETF Secretariat - Please send questions, comments, and/or suggestions to ietf-web@ietf.org.

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