How can I implement round robin in Queue?

[Wang Tao]

Hi,

Here, I want to implement a Queue with custom round robin to select the packet to be dequeued in a dequeue operation.

Take DropTailQueue as an example.

I did some modifications to DropTailQueue.

1. I add multiple queues for the purpose that I classify the packets into 2 groups by using (source ip address mod 2).

2. In the dequeue function, I implement my custom round robin, like HTB in QoS. But something may occur that I must keep the packet in the queue in a dequeue operation for implementing HTB in QoS which cause a sequence of errors. :-(

Could you please give me some suggestion? (like, where to implement it? cuz, I implement it in the dequeue function, it seems that the queue is "static" due to the fact that no packets will be enqueued during this dequeue operation)

Best,

Tao

[William Diego]

Hello Tao,

I think that you can find an interesting ns-3 implementation of  a DiffServ Architecture from which you can have an idea of RR queue implementation. :  http://www.eng.uwi.tt/depts/elec/staff/rvadams/sramroop/DiffServ_Overview.htm

Regards

William Diego

[Tommaso Pecorella]

Hi,

the project you pointed to s interesting, but it's a bit old (2010). Probably a huge refactoring will be needed to adapt it to 3.19 or 3.20.

T.

[Wang Tao]

Hi William,

Thanks for your resources, I have get my work done. :-)

Best,

Tao

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