Given the constraints placed upon frame misordering in a Bridge, as expressed in 6.3.3, the mappings of priority and traffic class are static.

网桥内对于数据包的乱序给出了限制，参见6.3.3，优先级的映射和通信类别是静态的。

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NOTE 1-the term Traffic Class, as used in this standard, is used only in the context of the operation of the priority handling and queueing functions of the Forwarding Process, as described in 7.7.

注意1：通信类别这个词，在本标准内使用，只用在优先级操作的上下文，以及转发处理的队列函数内，参见7.7。

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NOTE 1-the term Traffic Class, as used in this standard, is used only in the context of the operation of the priority handling and queueing functions of the Forwarding Process, as described in 7.7.

注意1：通信类别这个词，在本标准内使用，只用在优先级操作的上下文，以及转发处理的队列函数内，参见7.7。

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