示例：按节点重写 EXP 位
要将自定义表配置为重写特定节点上的 EXP 位（也称为 CoS 位），分类器表和重写表必须指定完全相同的 CoS 值。
此外，CoS 值本身的最低有效位必须表示 PLP 值。例如，CoS 值000必须与 PLP 相关联，001必须与 PLP lowhigh相关联，等等。
此示例配置自定义表以重写特定节点上的 EXP 位：
[edit class-of-service]
classifiers {
exp exp-class {
forwarding-class be {
loss-priority low code-points 000;
loss-priority high code-points 001;
}
forwarding-class af {
loss-priority low code-points 010;
loss-priority high code-points 011;
}
forwarding-class ef {
loss-priority low code-points 100;
loss-priority high code-points 101;
}
forwarding-class nc {
loss-priority low code-points 110;
loss-priority high code-points 111;
}
}
}
rewrite-rules {
exp exp-rw {
forwarding-class be {
loss-priority low code-point 000;
loss-priority high code-point 001;
}
forwarding-class af {
loss-priority low code-point 010;
loss-priority high code-point 011;
}
forwarding-class ef {
loss-priority low code-point 100;
loss-priority high code-point 101;
}
forwarding-class nc {
loss-priority low code-point 110;
loss-priority high code-point 111;
}
}
}