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你好,我遇到一个问题很困惑
现象描述:
pending=1的时候叶子节点会等待父节点发送数据,但是有时父节点在超过maxFrameTotalWaitTime=1220后才下发数据,这是叶子节点已经休眠了。导致这次传输失败,需要等到下次poll才能成功。
问题:
父节点发送慢的可能原因是什么?是cpu性能,还是csma冲突检测机制导致时间变长,还是什么? 谢谢解答,一直困惑