Flow Control - Sliding Window (N=4)

• Aís window: 0 1 2 3 & Bís window: 0 1 2 3

  • A sends B F0, F1, F2 & B receives all

• Aís window: 3 & Bís window: 3

  • B sends ACK 3

• Aís window: 3 & Bís window: 3 0 1 2

  • A receives ACK 3

• Aís window: 3 0 1 2 & Bís window: 3 0 1 2

• U = 1 if N > 2a+1 else U = N/ (1+2a)

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