Thank your reply, that help me a lot. But may be my question is not clear,
here is my question : Supposing that A is root MAP, and B, C is the other two
not root MAP . Through sending RANN and "hwmp_rann_frame_process", A has the
root path to B and C, but B does't has direct path to C . So according the
protocol , the data form B to C will first send to A, then A will transfer the
data to C through the root path . When C receive the data from C , it will know
that the original address of the data is B , so C will send PREQ to establish
the direct path form B to C ,then the next data from B to C will go through the
direct path. But there seems no implemention of the above describe. And i also
find the root paths established from the function "hwmp_rann_frame_process"
seems have no use , Could you tell me where i was wrong ? thank you.
At 2014-11-17 10:34:53, "Yeoh Chun-Yeow" <[email protected]> wrote:
>The path selection protocol implemented in o11s is Hybrid Wireless
>Mesh Protocol (HWMP) combining on-demand distributed path selection
>(reactive) and also proactive tree-oriented approach.
>
>For proactive approach, the function "hwmp_rann_frame_process" is to
>process the Root Announcement frame generated by the root mesh STA
>accordingly. Then, send unicast PREQ back to the root mesh STA and
>root mesh STA sends the PREP back. This establishes the path between
>root mesh STA and targeted mesh STA. Data transfer will follow then if
>any.
>
>This could be a good reference to you:
>http://cozybit.com/wordpress/wp-content/uploads/2010/03/ieee-80211s-the-wlan-mesh-standard.pdf
>
>Also, please refer the following on how to use o11s:
>https://github.com/cozybit/open80211s/wiki/HOWTO
>
>---
>ChunYeow
>
>
>On Mon, Nov 17, 2014 at 10:07 AM, newbie via Devel
><[email protected]> wrote:
>> hello, everyone ! I am a newbie of learning 802.11s protocol and i read the
>> implementation of 802.11s protocal in kernel 3.15 the other day. In
>> protocal , if the original mesh AP couldn't find a path to the target AP ,
>> it will send the data to the root AP that will transfer the data to the
>> target AP. Although in implementation there is some functions like
>> “hwmp_rann_frame_process”, i still can't find the function where root AP
>> process the data transfer . Could anyone help me to confirm that or tell me
>> how to implement that? I will very grateful to your help.
>>
>>
>>
>> _______________________________________________
>> Devel mailing list
>> [email protected]
>> http://lists.open80211s.org/cgi-bin/mailman/listinfo/devel
>>
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