| 摘要 |
In one embodiment, a node determines a ratio of traffic that is to be marked at an output. The node also determines if an input feeding the output has less traffic marked than is to be marked at the output, and marks unmarked traffic of that particular input corresponding to a ratio substantially equal to the difference between what is needed at the output and what is marked at the input. Also, in one embodiment, a node may determine a fair share of an output for unconstrained inputs (e.g., a preemption threshold divided among the inputs, taking into consideration inputs that use less than their fair share), and mark traffic accordingly.
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