Beijing University of Posts and Telecommunications published in ns tutorial- <ns与网络模拟> , Speaking also. The book comes with source code, you can test, the second chapter the second example seems to have problems.

ns与网络模拟电子书及源码\NS与网络模拟.pdf
........................\第七章.rar
........................\第三章.rar
........................\第二章.rar
........................\第六章.rar
ns与网络模拟电子书及源码

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