The Congestion Problem

• Problem: demand outstrips available capacity …

• Q: Will the “congestion” problem be solved when:

  • a) Memory becomes cheap (infinite memory)?

No buffer

Too late

All links 19.2 kb/s

Replace with 1 Mb/s

S

S

S

S

File Transfer Time = 7 hours

File Transfer time = 5 mins

• b) Links become cheap (high speed links)?

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