I-D ACTION:draft-boyle-tewg-interarea-reqts-01.txt

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	Title		: Requirements for support of Inter-Area and Inter-AS MPLS Traffic Engineering
	Author(s)	: J. Boyle
	Filename	: draft-boyle-tewg-interarea-reqts-01.txt
	Pages		: 9
	Date		: 2003-12-15
	
Traffic engineering using MPLS within a single IGP area has become
    quite prevalent in networks today.  This gives a network operator
    several advantages, including better traffic measurement
    capabilities, faster restoration times, and of course the ability
    to better manage congestion points within their network.  However,
    the current uses have been limited to one IGP area.  OSPF based
    networks usually do traffic engineering only in their backbone
    area, and many ISIS networks still operate at a single level.  It
    would be useful to be able to extend these capabilities across
    hierarchical areas within a single IGP, as well as to be able to
    extend across AS boundaries if it is found to be useful and
    possible.  This document first considers current applications of
    MPLS traffic engineering (TE), and then it addresses how these
    might be used (or precluded) across IGP areas.  For the purposes
    of this document, IGP areas refers both to OSPF areas and ISIS
    multi-level hierarchies.  Requirements for Inter-AS TE can be
    found in [INTER-AS-TE].

    Please direct comments on this document to [e-mail]

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