| 摘要 |
A policer sets in advance, with respect to tokens consumed with the passage of arriving packets, a threshold for each bandwidth usage rate (for each rate order ranked by the bandwidth usage rate) to be compared with the remaining amount of tokens at packet arrival time to determine whether to discard an arriving packet. Determining that the remaining amount of tokens at the arrival of a packet is less than a threshold set for the bandwidth usage rate (rate order) of a class (network flow) where the arriving packet belongs, the policer discards the arriving packet.
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