RE: [PATCH] Hyperv: Trigger DHCP renew after host hibernation

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> From: Richard Weinberger [mailto:richard@xxxxxx]
> Sent: Monday, July 21, 2014 4:18 PM
> 
> Yue,
> 
> Am 21.07.2014 10:05, schrieb Yue Zhang (OSTC DEV):
> > The problem of systemd implementation is that in different distros, the ways 
> > to restart service are different. Propagating the event to userspace also doesn't 
> > help for this issue.
> 
> This way each distro can provide their own restart script.
> Same as every distro has custom start scripts, etc...
> 
> > The advantage of current solution is that it simulates a cable plugging 
> > in/out event. IMHO, in all the distros, this simulated event has already been well 
> > handled. It is a dup effect to implement new hooks.
> 
> Iff the current solution works for _all_ networking implementations.
> 
> Thanks,
> //richard

Hi, Richard

IMHO, all networking implementations should handle the cable offline event. Consider
this situation. I unplugged the network cable and connect it to a new network switch
after 10 seconds. If the DHCP renew is not triggered, the network will break. I think in 
normal cases, it should already been handled properly. Unless there is a strong 
justification for not doing this. In that case, we shouldn't renew DHCP anyway.

Thanks
----
Yue
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