Re: [L1vpn] Draft liaison to SG13 from L1VPN

[dimitri papadimitriou <[e-mail]>]

hi adrian -

ok for me - as the discussion concerning the extended mode have just 
started it might appropriate to add a line on this (as this could be of 
interest of a broader community)

thanks,
- dimitri.

Adrian Farrel wrote:

> Hi,
> 
> In Vancouver we reminded ourselves that we should send ITU-T SG13 a
> liaison to let them know how we are progressing.
> 
> Below is a draft. please comment by the 30th of November.
> 
> Thanks,
> Adrian
>  ========
> From: IETF L1VPN Working Group
> To: ITU-T Study Group 13
> For: Information
> 
> Subject: Status of Layer One VPN Work in the IETF
> 
> The L1VPN Working Group would like to take this opportunity to inform
> ITU-T Study Group 13 of its progress on the development of protocol
> solutions for Layer One VPNs.
> 
> The L1VPN Working Group was chartered in the summer of this year. You can
> see the details of the scope of work for the working group at
> http://www.ietf.org/html.charters/l1vpn-charter.html.
> 
> The working group has so far produced two documents:
> 
> http://www.ietf.org/internet-drafts/draft-ietf-l1vpn-framework-00.txt
> presents a framework for L1VPNs and draws much of its material from
> Recommendations Y.1312 and Y.1313. The purpose of this framework is to aid
> in developing and standardizing protocols and mechanisms to support
> interoperable L1VPNs. The document examines motivations for L1VPNs, high
> level (service level) requirements, and outlines some of the architectural
> models that might be used to build L1VPNs.
> 
> http://www.ietf.org/internet-drafts/draft-ietf-l1vpn-applicability-00.txt
> provides an applicability analysis on the use of Generalized Multiprotocol
> Label Switching (GMPLS) protocols and mechanisms to satisfy the
> requirements of Layer 1 Virtual Private Networks (L1VPNs). In addition,
> this document identifies areas where additional protocol extensions or
> procedures are needed to satisfy the requirements of L1VPNs, and provides
> guidelines for potential extensions. The intention is that, as new
> protocol extensions are developed to meet the requirements identified here
> and in the framework document, this document will convert to being a
> simple applicability statement.
> 
> The working group believes that these two documents are largely stable,
> and is now working to develop protocol solutions for the "Basic Mode"
> L1VPN. This mode of operation involves only signaling protocol exchanges
> (i.e. no routing) between CE and PE in the network.
> 
> Two Internet-Drafts currently exist in support of the protocol extensions
> needed for the Basic Mode as identified in the applicability draft:
> 
> http://www.ietf.org/internet-drafts/draft-fedyk-l1vpn-basic-mode-00.txt
> describes an operational model using either provisioning or a VPN
> auto-discovery mechanism and defines signaling extensions for the L1VPN
> Basic Mode.
> 
> http://www.ietf.org/internet-drafts/draft-ouldbrahim-l1vpn-bgp-auto-discovery-00.txt
> defines a BGP-based auto-discovery mechanism for Layer One VPNs that
> allows the provider network devices to dynamically discover the set of PEs
> having ports attached to CEs member of the same VPN.
> 
> The working group is likely to adopt work items based on these
> Internet-Drafts in the near future.
> 
> A further work item to provide an OSPF-based auto-discovery mechanism is
> being developed but is not available at this time.
> 
> The L1VPN Working Group would like to encourage the involvement of all
> interested parties through the open mailing list. Subscription details can
> be found at the charter page
> (http://www.ietf.org/html.charters/l1vpn-charter.html).
> 
> The review and feedback of Study Group 13 on any of this work would also
> be most welcome.
> 
>  Regards,
> Tomonori Takeda
> Hamid Ould-Brahim
> Adrian Farrel
> (L1VPN Working Group co-chairs)
> 
> 
> _______________________________________________
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> 
> .
> 

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