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draft- farrel -interconnected- te -info-exchange Fatai Zhang on behalf of the authors

Problem Statement and Architecture for Information Exchange Between Interconnected Traffic Engineered Networks. draft- farrel -interconnected- te -info-exchange Fatai Zhang on behalf of the authors zhangfatai@huawei.com. IETF-90 : Toronto, Canada, July 2014. History and Purpose.

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draft- farrel -interconnected- te -info-exchange Fatai Zhang on behalf of the authors

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  1. Problem Statement and Architecture for Information Exchange Between Interconnected Traffic Engineered Networks draft-farrel-interconnected-te-info-exchange Fatai Zhang on behalf of the authors zhangfatai@huawei.com IETF-90 : Toronto, Canada, July 2014

  2. History and Purpose • -00 posted in February 2013 • Intention to show • Problem statement and architecture for the exchange of TE information between interconnected TE networks in support of end-to-end TE path establishment • Limited to simple TE constraints and information that determine TE reachability • Four core use cases • Peer Networks • Client-Server Networks • Dual-Homing • Requesting Connectivity • Requirements • An architecture for network abstraction • Identify any missing tools

  3. Proposed Architectural Solution • Abstraction Layer Network Client layer resources: C1, C2, C3, C4 Server layer resources: CN1, CN2, CN3, CN4, CN5 Abstraction layer resources: Nodes:C2, CN1, CN3, CN5, C3 Physical links: C2-CN1, CN5-C3 Abstract links: CN1-CN3, CN3-CN5

  4. What is Abstraction? • Policy-based aggregation • Policies set by one network with knowledge of the other networks • Overcome issues of scaling, stability, confidentiality, and misinformation found in aggregation • Apply policy to the available TE information within a domain, to produce selective information that represents the potential ability to connect across the domain • Don’t necessarily offer all possible connectivity options • Present a general view of potential connectivity • Consider commercial and operational realities • Retain as much useful information as possible while removing the data that is not needed

  5. Status • I-D has been stable for several revisions • Includes text to show applicability of architecture to use cases • Changes from -04 to -05 • Attempt to address concerns from WG chairs • Short section on terminology • Attempt to address concerns about how we described the UNI • Add section 2.4 Requesting Connectivity

  6. Next Steps • Add authors of draft-ceccadedios-ccamp-overlay-use-cases as Contributors • Ooops! Should have done this in -05 • We lifted text and ideas for the new work in -05 • Add Manageability and Security Considerations • Make this the CCAMP document for this work

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