摘要 |
<p>PROBLEM TO BE SOLVED: To provide a multi-mode scheduler, that can be compatible with both a router where extension performance of number of ports is a requirement and a router where priority control among classes is a requirement, so as to realize a general-purpose scheduler. SOLUTION: All selection circuits 121-12M,..., 1k1-1kM select either of external assigned output port information and assigned output port information outputted from pre-stage N×M schedulers 110,..., 1(k-1)0, according to a selection control signal set from an external device (not shown). In the case of selecting the external assigned output port information, all the selection circuits 121-12M,..., 1k1-1kM select the external assigned output port information.</p> |