lecture04: Network Optimization: Goals and Constraints

The lecture describes some common network optimization goals and constraints, and why each occur.

Topics covered

• Lecture goals/outline
• Network Optimization Goals
• Cost in networking
• Equipment costs
• Link costs
• Simple Example Problem
• The ``constants''
• What is a router?
• Logical Router
• Router Architecture
• Line card
• CPU
• Chassis
• Router Architecture
• Per packet processing
• BGP routing table size
• Expensive bits
• Router costs
• Link costs alternatives
• Linear model: what's it good for?
• Optimizing for Latency
• Different scenarios
• Optimizing for Latency
• Optimizing for survivability
• Five 9's
• Approach
• Technological Constraints
• Non-technological Constraints
• Other Constraints
• Other issues
• Network Optimization