[問題] NS2的wireless廣播

看板Network_Sim作者CxMacchi (Carael Macchiato)時間14年前 (2010/02/21 16:49)推噓1(1推 0噓 5→)

留言6則, 2人參與討論串1/1

小弟是ns2新手恰巧最近開始接觸VANET相關的研究想在ns2上先練習實作簡單的廣播功能以期未來可以做區域廣播的動作卻發現ns2在wireless部份似乎沒有提供廣播的功能於是參考過網路上一些資料後發現這個解法 http://mailman.isi.edu/pipermail/ns-users/2000-June/009635.html 但在文章修改過ll.cc過後的部份卻不太能理解下面這一段是應該另外新增一個Agent或者是加在哪邊呢？又或者是否有已開發完畢的模組有提供廣播功能？先謝謝各位大哥了 @@ // Create a new packet Packet* pkt = allocpkt(); // Access the common header for the new packet: hdr_cmn* cmnhdr = (hdr_cmn*)pkt->access(off_cmn_); // Access the IP header for the new packet: hdr_ip* iphdr = (hdr_ip*)pkt->access(off_ip_); // set all the necessary things for the common header cmnhdr->next_hop_ = IP_BROADCAST; // broadcast // now the ip header stuff iphdr->saddr() = myAddress; iphdr->sport() = myPort; iphdr->daddr() = IP_BROADCAST; iphdr->dport() = desiredDestinationPort; // I do this just to be sure that it isn't forwarded // beyond the neighbors iphdr->ttl() = 1; // this is taken from dsragent::sendOutBCastPkt Scheduler::instance().schedule(ll, pkt, 0.0); // return TCL_OK, so the calling function knows that the // command has been processed return (TCL_OK); -- 《Sometimes Love Just Ain't Enough》 Yan-zi "But there's a danger in loving somebody too much. And its sad when you know it's your heart you can't trust. There's a reason why people don't stay where they are. Baby sometimes love just ain't enough." -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 140.116.216.89 ※ 編輯: CxMacchi 來自: 140.116.216.89 (02/21 16:49) ※ 編輯: CxMacchi 來自: 140.116.216.89 (02/21 16:50)