The Case for
Raising the Internet MTU
[Start Here (html)]
[Slide Sorter (html)]
Download:
[Postscript: Cisco200307.ps]
[PDF: Cisco200307.pdf]
Page 1: The Case for
Page 2: Outline
Page 3: Part 1
Page 4: The Wizard Gap
Page 5: Imagine Closing the Wizard Gap
Page 6: Moore's law
Page 7: Why not TCP?
Page 8: Tuning requires too much expertise
Page 9: Tuning is Really Debugging
Page 10: Tuning is Painful Debugging
Page 11: Web100 Instrumentation
Page 12: Important Observation
Page 13: TCP Autotuning
Page 14: Observation
Page 15: Congestion Control
Page 16: Change Global Congestion Control?
Page 17: The Net100 Work Around Daemon
Page 18: Remote Direct Data Placement (RDDP)
Page 19: What about MTU?
Page 20: Maximum Transmission Unit
Page 21: Possible approaches
Page 22: Apply Moore's law to packet sizes
Page 23: Another vantage point
Page 24: Part 2
Page 25: Path MTU Discovery is Busted
Page 26: Impact of disabling pMTU discovery
Page 27: A New Algorithm
Page 28: Running code
Page 29: Key feature
Page 30: Reactivate IETF pmtud WG
Page 31: Expect easy deployment
Page 32: Likely long term impact
Page 33: Part 3
Page 34: The general scaling argument
Page 35: Performance scaling
Page 36: Performance conjectures
Page 37: No clear measurement data (Yet)
Page 38: Ethernet must be standard
Page 39: An alternative view:
Page 40: The CRC Argument
Page 41: Invert the Problem
Page 42: What about bit errors?
Page 43: It doesn't fit into current HW designs
Page 44: The current common limit
Page 45: What - no DRAM?
Page 46: New project at PSC
Page 47: Conjecture
Page 48: How much more cost?
Page 49: Comparison to ATM
Page 50: Comparison to Interconnects
Page 51: IP fragmentation is not sufficient
Page 52: Super fragmentation
Page 53: Deployment issues
Page 54: Part 4
Page 55: The Pitch to Large Users
Page 56: Two intertwined subtasks
Page 57: Huge payback
Page 58: LAN vendor resistance
Page 59: Maximizing DoE Impact
Page 60: Pitch to Manufacturers
Page 61: Selling gear
Page 62: Longer Term Impact
Page 63: Closing Summary
Page 64: The End
Generated by MagicPoint
