adhoc - AODV HELLO packet

Question

I am currently working on an implementation of AODV protocol, One thing am not clear about is the use of HELLO packets.

Are HELLO packets exchanged even before a route is established or HELLO packets are used to keep an existing route alive ?

Note: Also according to my understanding of AODV RFC 3561, HELLO packets are optional. Is that correct ?

Answer 1

用于为所有节点构建邻居表的 Hello 数据包。在 AODV 中，您可以使用Hello 数据包或链路层检测来创建邻居列表。默认情况下，AODV 与链路层检测一起使用。如果您想使用 hello 数据包，您必须在 aodv.cc 中命令以下行

//#ifndef AODV_LINK_LAYER_DETECTION

//#endif // 链路层检测

现在您可以使用跟踪文件验证 hello 数据包操作。