Hi, Thanks a lot. I recall this. But I never use it because I don't know who is the uptarget_ of who. Using debug, it seems every leayer will go to trace so I wonder whether uptarget_ of mac is trace or link. Do you have any experience ? So we only need to follow the structure of Chapter 16, is that right? Best, Pei
李业 <[EMAIL PROTECTED]> 写道： Hi, When you created a node in otcl, mac layer and other components are fixed together(both in otcl and C++). If you want to access MAC layer in C++, you simply use a pointer uptarget_* or downtarget_* in the layer where you want to do this. For example you want to do this in PHY layer, you just: uptarget_->xxxx You may want to refer to the overview diagram provided in NS manual chapter 16. I'm new to NS, hope this helps! 2008/10/16 Daniel Dekst : > > > Hi, everyone, > > I know how to access physical layer since Class Node provides a variable > ifhead_ for list of phys. > So > WirelessPhy* physicalLayer = (WirelessPhy*)(node_->ifhead()).lh_first; > works. > > But it does not provide list of mac, thus can I access mac layer similar as > above? > I know tcl may work by calling mac layer and then again use tcl to return the > desired value, but is there any method to access it directly using c++? > > Best, > Pei > > Pei Huang, Ph.D. student > Dept. of Computer Science and Engineering > Michigan State University > http://dekst.awardspace.com > > -- Best regards, Li Ye --------------------------------- 雅虎邮箱，您的终生邮箱！
