Table of Contents
BGRP (Border Gateway Reservation Protocol) A Tree-Based Aggregation Protocol for Inter-Domain Reservations
Outline
Resource Reservation
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Reservation Architectures
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Protocol Scaling Issues
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Current Network Size
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Growth Rates
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BGRP Protocol
BGRP Basics
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PROBE Message
GRAFT Message
REFRESH Message
Comparison of BGRP vs. RSVP
BGRP Enhancements
Problem: Flapping Leaves
Problem: Rushing Sap
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Problem: Broken Branches
Performance Evaluation
Flow Counts vs. Region Size
Flow Counts vs. Region Size
Number of Flows (broken down by BW)
BGRP / RSVP Gain for each BW Class
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Reservation Count vs. Link Number
Reservation Count vs. Node Number
Gain: Nrsvp / Nbgrp
Reservation Count vs. Traffic Load
Reservation Count vs. Traffic Load
Message Rate vs. Refresh Rate
Message Rate vs. Refresh Rate
Message Reduction vs. Quantum Size
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Message Reduction vs. Quantum Size
Message Reduction vs. Load & Quantum Size
Conclusions
Future Work
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