Parameter propagation

Most parameters are automatically propagated from a queuing discipline to its classes, and from ``parent'' classes to ``child'' classes. A propagated parameter value can be overridden by specifying that parameter with a different value at the (child) class.

Example:

cbq (...,avpkt 1500B,mpu 500B,...) {
    class (...,mpu 600B,...) {
        class (...) ...
    }
}

is equivalent to

cbq (...,avpkt 1500B,mpu 500B,...) {
    class (...,avpkt 1500B,mpu 600B,...) {
        class (...,avpkt 1500B,mpu 600B,...) ...
    }
}