I-D ACTION:draft-balus-mh-pw-control-protocol-01.txt

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A New Internet-Draft is available from the on-line Internet-Drafts directories.


	Title		: Multi-Segment Pseudowire Setup and Maintenance using LDP
	Author(s)	: F. Balus, et al.
	Filename	: draft-balus-mh-pw-control-protocol-01.txt
	Pages		: 18
	Date		: 2005-5-11
	
[MH PWE3 Requirements] describes the requirements to allow a service
    provider to extend the reach of pseudo-wires across multiple
    domains. A Multi-Segment PW is defined as a set of two or more
    contiguous PW segments that behave and function as a single point-
    to-point PW.

    The current specification of the PW Architecture [PW ARCH] defines
    the PW as a single Segment entity, connecting the Attachment
    Circuits between two Ultimate PEs (U-PE). The current procedures for
    establishing a single segment PW (SS-PW) is described in [PW
    Control], where typically an LDP session is established between the
    ultimate PEs handling the Pseudowire End Service (PWES). No
    intermediate nodes, between the PEs, are aware of the PW.

    The purpose of this draft is to specify new LDP extensions, end to
    end signaling procedures to address the related requirements
    specified in [MS-PWE3 Requirements]. The proposed procedures follow
    the guidelines defined in [RFC3036bis] and enable the usage of
    addressing schemes (L2FECs) and other TLVs already defined for PWs
    in [PW Control].

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