On Tue, Jul 7, 2020 at 2:24 PM YU, Xiangning <xiangning...@alibaba-inc.com> wrote: > > The key is to avoid classifying packets from a same flow into different > classes. So we use socket priority to classify packets. It's always going to > be correctly classified. > > Not sure what do you mean by default configuration. But we create a shadow > class when the qdisc is created. Before any other classes are created, all > packets from any flow will be classified to this same shadow class, there > won't be any incorrect classified packets either.
By "default configuration" I mean no additional configuration on top of qdisc creation. If you have to rely on additional TC filters to do the classification, it could be problematic. Same for setting skb priority, right? Also, you use a default class, this means all unclassified packets share the same class, and a flow falls into this class could be still out-of-order, right? Thanks.
