18_Router_Architecture_II_Qos_Support_and_Switching_Fabric_03

Router_Architecture_II_Qos_Support_and_Switching_Fabric_02

Other Distributed Scheduling Algorithms: Round Robin (循環排序法) request

One Iteration Pointer A1 VOQ 1,1 VOQ 1,2

grant final selection Output Controller 0

Basic Principle: 在每一個回合中,網路設備 依序輪流地為每一個佇列 (Queue)傳送一個封包。 Disadvantage: 當封包的長度不固定時,傳 送大封包的佇列得到比較大 的頻寬,所以還是存在著不 是很公平的情況。

VOQ 1,N

::

Pointer G1

:: Pointer AN VOQ N,1 VOQ N,2 VOQ N,N

:: Output Controller N

Pointer GN

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