This attribute is valid on all channel types that can ever receive a channel initiation flow, except for sender channels. This attribute is valid for channel types of.
这个属性对可以接收一个通道初始化流的所有通道有效，发送器通道除外。
2
Has flow routing that is directed by the client (sender).
具有由客户机(发送方)定向的流路由。
3
Even though these frames might be ignored, because they are sent before the sender receives the RST_STREAM, the sender will consider the frames to count against the flow control window.