[問題] NS2的wireless廣播

[CxMacchi (Carael Macchiato)]

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);


--
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"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.
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◆ 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)
推 abilitylife:這應該是給Routing Agent用的
→ abilitylife:其實也不一定，反正上層的Agent只要new一個這樣的
→ abilitylife:往下送自然就會Broadcast出去
→ abilitylife:                                           Packet
→ CxMacchi:謝謝樓上，有一點想法了 先試看看 :)
→ CxMacchi:自己回..發現在2.34裡有內建的module 當初眼殘沒看到...