On Fri, May 6, 2011 at 9:37 AM, Fabrice Deyber
<fabricedey...@agilemesh.com> wrote:
> Hi Javier,
> I looked at the latest draft (D11/april 2011) and here what is says about
> PREP processing:
> Section: 11C.9.8.4 Forwarding information
> ...
> — The mesh STA shall create or update its forwarding information to the
> target mesh STA, if it
> received a PREP, and one of the following conditions is met:
> — The Target HWMP sequence number > HWMP sequence number in the forwarding
> information for this target mesh STA, or
> — The Target HWMP sequence number = HWMP sequence number in the forwarding
> information for this target mesh STA AND the updated path metric is better
> than the path
> metric in the forwarding information.
> ...
>
> and section: 11C.9.10.4.3 Effect of receipt
> A mesh STA receiving a PREP according to the acceptance criteria in
> 11C.9.10.4.2 (Acceptance criteria)
> shall create or update the active forwarding information it maintains for
> the target mesh STA of the PREP
> (according to the rules defined in 11C.9.8.4 (Forwarding information)). If
> the conditions for creating or
> updating the forwarding information have not been met in those rules, no
> further steps are applied to the
> PREP.
>
> With that in mind the code should be changed as follows: (mesh_hwmp.c,
> hwmp_route_info_get())
>
> (mpath->flags & MESH_PATH_SN_VALID)) {
> if (SN_GT(mpath->sn, orig_sn) ||
> (mpath->sn == orig_sn &&
> - action == MPATH_PREQ &&
> new_metric >= mpath->metric)) {
> process = false;
> fresh_info = false;
> }
>
> Basically PREQ and PREP should be treated the as far as updating the
> forwarding information.
Ah, that's better, yes. Will you submit a patch or you want me to do it?
Cheers,
j
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