my question is acturally two part
1, how to use cb-shape to shape one class without shape other class
2, how do different the the queue method(CBFWQ) is in the in shaper QUEUE (shaping queue) or is CBFWQ in the interface software queue(after shaping).
for example, the questin is
On the WAN edge router, configure the appropriate MQC based
queuing mechanism for the outbound traffic to the WAN (S0/0) so that the following
bandwidth requirements will be met. A strict priority queue with a 168 Kbps
bandwidth guarantee for the class voice is reserved, a minimum bandwidth
guarantee of 30 Kbps is configured for the class interactive, a minimum bandwidth
guarantee of 16 Kbps for class bulk, and the default class is configured for WFQ
with no bandwidth guarantee.
In addition, also limit the bulk traffic class to an average rate of 24 Kbps by
buffering excess traffic(use the IOS default Bc and Be)