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Flow monitor module provides a flexible way to extract performance parameters such as number of packets sent, received, dropped, etc.

This task is about extending the examples/tutorial/third.cc to support flow monitor. Currently, third.cc supports ASCII tracing and PCAP generation. In this task, there are two important aspects: (1) enable the support of flow monitor in third.cc and (2) show the number of packets sent, received and dropped in this example.

Submit two things for evaluation: (1) a patch file showing the changes made in third.cc to enable the support of flow monitor and (2) a snapshot of the system terminal showing the number of packets sent, received and dropped.