Hi, to do wireless multicasting you will need to use a specific adhoc protocol like MAODV,ADMR,ODMR or PUMA .
The multicast option you are using in your script is only for wired connections. Here's the links to the multicast adhoc protocols i mentioned before : PUMA : http://sourceforge.net/projects/puma-adhoc/ ADMR & ODMR : http://www.monarch.cs.rice.edu/multicast_extensions.html MAODV : http://www.sce.carleton.ca/wmc/code.html Good luck ! pebbles wrote: > > Hello to everyone, > I'm a complete noob at NS but I've checked some tutorials, run a couple of > tcl examples but I still can't combine all these so as to do what I want. > That is to create an RTP session between 2 nodes. The connection between > them has to be wireless. I'm trying to do the same things as shown in 2 > examples of /ns-2.34/tcl/ex, simple-wireless.tcl and simple-rtp.tcl. I get > this weird error but I haven't found anything on the web: > > > num_nodes is set 2 > warning: Please use -channel as shown in tcl/ex/wireless-mitf.tcl > INITIALIZE THE LIST xListHead > Starting Simulation... > channel.cc:sendUp - Calc highestAntennaZ_ and distCST_ > highestAntennaZ_ = 1.5, distCST_ = 550.0 > SORTING LISTS ...DONE! > ns: _o19 new-group 0 -2147483648 -1 cache-miss: can't read > "protocols_(-1)": no such variable > while executing > "$protocols_($iface) upcall $code $source $group $iface" > (procedure "_o20" line 9) > (mrtObject upcall line 9) > invoked from within > "$mrtObject_ upcall $code $src $group $iface" > (procedure "_o14" line 3) > (Node new-group line 3) > invoked from within > "$node_ new-group $src $group $iface $code" > (procedure "_o19" line 3) > (Classifier/Multicast new-group line 3) > invoked from within > "_o19 new-group 0 -2147483648 -1 cache-miss" > > > I think it has to do with the function mrtObject instproc upcall in the > file /ns-2.34/tcl/mcast/McastProto.tcl > but I'd like to know what I've got to do about it. I saw that RTP stuff is > still undocumented (http://www.isi.edu/nsnam/ns/doc/ns_doc.pdf). > > I would really appreciate any help/hint/suggestion. > > Thank you :-) > > http://old.nabble.com/file/p31407109/rtpwi.tcl rtpwi.tcl > -- View this message in context: http://old.nabble.com/RTP-over-wireless-connection-between-two-nodes-tp31407109p31419681.html Sent from the ns-users mailing list archive at Nabble.com.
