[Babel-users] the routing atomic update wet paint - because *I* care

Henning Rogge hrogge at gmail.com
Tue Apr 7 13:35:48 UTC 2015

On Tue, Apr 7, 2015 at 3:19 PM, Matthieu Boutier
<boutier at pps.univ-paris-diderot.fr> wrote:
>> If you work with atomic route replacement even putting ALL of them
>> into a netlink message (or as many as you can fit in) works.
> What I understand is that we can't (in general) work with atomic
> *next-hop* replacement (interface index and metric may change).

Interface index is not a problem... metric-change is.

> I proposed a workaround where instead of using two distinct messages
> for "del(r)" and "add(r)" we use one message with "del(r); add(r)".
> Even if it's not necessarily atomic (is it?), it should be faster
> (only one system call, since it was what frightened Dave).


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