[Click] another problem

[=?gb2312?B?bGl1emhhbl9obg==?=]

    I have another problem. When I implement the example fake-iprouter.click, it shows error: chatter:out0 :: Queue overflow . Could anyone help me ? 
    And as a beginner, I find click router is hard to learn , can anyone give me any suggestions please? In our project, we only need to simulate a WAN environment, are there any shortcuts to achieve this goal. I hope you can help me. Thank you . 

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