But a host reports its own information when joins in the network, which I observe according to NOX debug information. Does the topology will be updated? If not, how does it update? Thank you very much.
在 2012-07-24 10:23:39，"Murphy McCauley" <[email protected]> 写道： On Jul 23, 2012, at 7:19 PM, 王健 wrote: Thank Murphy and Kyriakos for your patient reply, i am sorry that maybe i don't express my meaning clearly. When a host joins in the network, it receives the peridictly LLPP packet and reply its own information such as IP, MAC, access point to the NOX. Then the NOX update the topology immediately when it receives the host join in event, isn't it? If the toology is update immediately, then there is a quetion I can't think clealy. If host A sends an ICMP request to host B, the path_calculation_module says there is no route, it means there is no path between A and B, isn't it? If so, I think there is no need to broadcast. This confuses me a lot. I think maybe I was wrong somewhere, can you help me? I think you're saying that you expect the hosts to be receiving the LLDP from the switch and then responding. This isn't the case. The hosts are not expected to participate in the LLDP conversation -- it is strictly between switches. -- Murphy
