| 摘要 |
<p>A packet discard detector detects, for each of output ports, a discard of a packet output from the output port. A distribution processor calculates a degree of congestion for each of the output ports based on a result of the detection of the packet discard detector to find a first output port having a degree of congestion exceeding a threshold, and selects a second output port to be used as a packet distribution destination for the first output port. The distribution processor further calculates a distribution ratio for distributing the packet between the first and second output ports based on the degree of congestion. The packet transfer unit distributes the packet input through the input port and having a destination corresponding to the first output port between the first output port and the second output port according to the distribution ratio calculated by the distribution processor.</p> |
