The traffic shaping consist in delaying packets when the traffic rate exceeds the traffic contract (shaping rate during each Tc)
How can I know the size of the shaper buffer ? I mean how much packets can be delayed ? There should be a limit ! I guess I can know how many packets are in buffer (column queue depth in the output of "show policy-map interface") but I don't find information on the queue depth. Is it configurable ?
If you want to adjust the queue limit per class, you can modify that in the class configuration by typing "queue-limit n" where n is the number of packets. The default queue-limit is usually 64 or 128 packets depending on the IOS version.