#3732: arp broadcasts don't wake up laptop
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Reporter: wad | Owner: jg
Type: defect | Status: new
Priority: high | Milestone: First Deployment, V1.0
Component: distro | Version:
Resolution: | Keywords:
Verified: 0 |
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Comment(by rchokshi):
Replying to [comment:4 jg]:
> This (wakeup on all broadcasts) isn't a reasonable solution; many
networks are way to chatty for that; we can't afford to wake up every
second, and go back to sleep.
>
> ARP and IPv6 NDP are similar; I don't know what the usual timeouts are.
>
> I suspect we'll need some sort of sane filtering at the firmware level
for key protocols. It also isn't clear to me that we should not forget
our IP address after a while anyway; after a long suspend a delay for ARP
and or NDP is reasonable, as it is quite likely the laptop has been moved
anyway.
>
The advanced firmware that will run on our next generation SoC, i.e.
88W8682 will have much more flexibility in software to do nifty filtering
based on key protocols (L2 as well as L3), packet types, etc. and wake-up
the host only under certain pre-configured conditions.
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Ticket URL: <https://dev.laptop.org/ticket/3732#comment:7>
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