Challenge 4: Small Packets With multimedia streaming flows becoming common, an increasingly large fraction of the bytes transmitted belong to control traffic Compounding the congestion control, small packets may excessively contribute to lower network efficiency in terms of full-size packet transfer performance For small packets, the Nagle algorithm allows to avoid congestion collapse and pathological congestion [RFC896] dramatically reduce the number of small packets aggregation implies delay for packets => applications that are jitter-sensitive typically disable the Nagle algorithm |