Enabling Connectivity Checking in NetworkManager

[Ted Gould]

On Wed, 2012-07-11 at 12:48 -0700, Chase Douglas wrote:
> On 07/11/2012 12:17 PM, Thomas Bechtold wrote:
> > On Wed, 2012-07-11 at 06:08 +0200, Martin Pitt wrote:
> >> Mathieu Trudel-Lapierre [2012-07-10 14:41 -0400]:
> >> It could stop polling until the connection state changes
> >> then.
> >
> > if you don't poll, you never know if the connection state changed.
> 
> My devious self is wondering if each computer can have an active TCP 
> connection to a specific address, like connected.ubuntu.com, with TCP 
> keepalives at a high interval (maybe 10 seconds). You don't have the 
> overhead of constantly opening and closing connections, but you do have 
> the overhead of actually keeping millions of connections open on the server.
> 
> This addresses none of the privacy concerns, of course, but it does give 
> near immediate notification when the network has died, no matter how you 
> get your connection.

I was thinking the same thing, I'm curious if we couldn't offload that
to something like Telepathy.  So for instance, I typically have a Jabber
connection open if I'm online.  Seems like U1 does the same thing for
those with U1 accounts.  Only poll if someone doesn't take over.

		--Ted


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