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“K16304” — 2012/11/19 — 9:15
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2.2 Retransmission Policies
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We simulate a 4MB file transfer with different network conditions, controlled by
varying the load introduced by cross-traffic. All loss experienced is due to congestion
at the routers; no loss is due to bit errors. The aggregate levels of cross-traffic on each
path range from 5Mbps to 11Mbps. Although we independently control the levels
of cross-traffic on each of the core links, the controls for the cross-traffic on each
forward-return path pair are set the same. Each simulation has three parameters:
1. level of cross-traffic (in Mbps) on the primary path
2. level of cross-traffic (in Mbps) on the alternate path
3. AllRtxAlt vs AllRtxSame policy
Results
We compare the transfer times using