Speaking as a WG member,

On 3/20/13 1:29 PM, "Minto Jeyananth" <[email protected]> wrote:

>Hi Authors,  
>
>Expert from the draft
>
>   "One of the implications of such busy periods of state restoration in
>   a process is that, the process may not be able to sustain the rate of
>   sending HELLOs across all its interfaces.  In a controlled restart
>   scenario (such as OSPF Graceful restart), the router is able to ask
>   for a grace period by flooding out opaque LSAs indicating that it is
>   restarting.  In case of upgrades and restarts with state restoration,
>   (i.e., not involving a graceful restart), this is not possible."
>
>Does not it a pure implementation issue? Implementation could simply
>prevent such an unsupported configuration.
>With BFD does OSPF needs aggressive interval?

Normally, BFD is used for sub-second convergence. If there is some control
plane switchover, the new active OSPF process must be able to send a hello
on all interfaces before the dead interval expires.

I feel this draft is more useful for OSPFv3 auto configuration.

Thanks,
Acee

> 
>
>Thanks 
>-minto 
>
>
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