[Detnet] questions about draft-eckert-detnet-mpls-tc-tcqf

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Hi authors,

Thanks for the effort to introduce TSN CQF to IP network, especially, a large scale WAN.

Can you help me to understand how does T-CQF solve the congestion ?  For example, an intermediate node with multiple incoming ports may receive T-CQF packets from many sources, and  these packets are put into the same cycle-id related queue. Can they be guaranteed to be sent together in the next cycle?  Appreciate for additional description of that in the document.

I have seen examples of single T-CQF flow competed with best-effor backgroup flows, that is OK. However, the competetion between multiple T-CQF flows may be more interesting.
One may say that there is a central controller to plan and arrange T-CQF flows, and never permit more T-CQF flows match the same local cycle-id at the intermediate node then to avoid congestion. I think that may be possible for a small network, but may be challange for large scale WAN.

Regards,
PSF