My Research Direction Related to Policy Based Networking

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My Research DirectionRelated to Policy Based
Networking

• George Lee
• 12/01/99

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The Framework of Interdomain Policy Based Routing

• Three phases
• How does a Bandwidth Broker (BB) exchange policy
  information with the BBs in other domains?
• Adjacent BBs or disjoint BBs?
• World-wide hierarchical BB-interconnected
  network?
• Communication protocol?
• Policy translation?
• How does a BB setup/update its routing table from
  the policy information gathered from other BBs?
• Translation from policy to routing decision?
• Policy summarization?
• How does a BB collect network information from
  the routers within its domain?
• Relations between policies and Network
  information? Policy authentication, security,
  QoS (bandwidth, delay, jitter), Net Info link
  utilization, buffer usage,
• Dynamic or static?
• Edge routers and/or core routers?

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• Problems
• Negotiation between Adjacent BBs only deals with
  policies of the two adjacent domain but lacks
  end-to-end policy guarantee
• Proposed Solution
• BB interconnected network connecting BBs in all
  domains

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BB interconnected network

• BBs form a CBT
• BB knows all BBs of other domain

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BB Network Modified BGP-4? RSVP Extension?
BB5
BB4
BB1
BB2
BB3
Domain 5
Domain 4
Domain 2
Domain 1
Domain 3