[Serusers] failover and VRRP

[hgaillac-sip at yahoo.fr]

Is it the best way ?

Which solution would be able to check the ser
availability bfore estabilsh 
the connections 
                                               SER2
sip agents===DNS servers==[the solutions ??]==
                                               SER1

Harry
--- sip <sip at arcdiv.com> a écrit :

> We use Coyote Point load balancers (good, relatively
> cheap, hardware
> load-balancers) that monitor the connectivity to the
> SER server. The problem
> is that it ONLY monitors connectivity, so if your
> SER is still accepting
> connections to the socket, but then not working
> correctly, it doesn't know the
> difference. 
> 
> Our SER works off a centrally-shared DB instead of a
> replicated one (mysql
> running from a SAN connected to both machines
> through a SAN switch). That way,
>  if one of the servers goes down, the other one
> picks up as if nothing ever
> happened. 
> 
> SER does not have stateful connections from the UA,
> so if the server gets
> switched in the middle of a conversation, it will
> cut the conversation off...
> but at least there will still be a server active for
> additional connections. 
> 
> N.
> 
> 
> On Tue, 31 Jan 2006 13:24:00 +0100 (CET),
> hgaillac-sip wrote
> > Do you know a solution !?
> > 
> > Harry
> > --- sip <sip at arcdiv.com> a écrit :
> > 
> > > Right. VRRP is for layer 2/3 but it's for
> routing
> > > purposes. 
> > > 
> > > If you want to handle the application layer with
> > > failover, you need a
> > > load-balancer of some sort. That way, if one SER
> > > dies, the load balancer sends
> > > data on to the other one. 
> > > 
> > > N.
> > > 
> > > On Tue, 31 Jan 2006 12:37:56 +0100 (CET),
> > > hgaillac-sip wrote
> > > > Hello,
> > > > 
> > > > I think vrrp handle layer 2/3 not sip
> application
> > > what
> > > > do you advise me ?
> > > > 
> > > > Harry
> > > > 
> > > > --- sip <sip at arcdiv.com> a écrit :
> > > > 
> > > > > Sure. You can even use VRRP if there's no
> SER in
> > > > > your network. I'm not sure
> > > > > what that has to do with SER, though. 
> > > > > 
> > > > > VRRP is router-side. 
> > > > > 
> > > > > N.
> > > > > 
> > > > > 
> > > > > On Tue, 31 Jan 2006 10:32:03 +0100 (CET),
> > > > > hgaillac-sip wrote
> > > > > > hello,
> > > > > > 
> > > > > > Can we use VRRP when a SER is down ?
> > > > > > 
> > > > > >                SER1 (master)
> > > > > >  sip agents == ||  === Asterisk
> Farm==sip/pstn
> > > > > gateway
> > > > > >                SER2 (slave)
> > > > > > 
> > > > > > Regards
> > > > > > Harry
> > > > > > 
> > > > > > 	
> > > > > > 
> > > > > > 	
> > > > > > 		
> > > > > >
> > > > >
> > > >
> > >
> >
>
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> > > > > >
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> > > > > >
> > > http://lists.iptel.org/mailman/listinfo/serusers
> > > > > 
> > > > >
> > > > 
> > > > 	
> > > > 
> > > > 	
> > > > 		
> > > >
> > >
> >
>
___________________________________________________________________________
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> > >
> > 
> > 	
> > 
> > 	
> > 		
> >
>
___________________________________________________________________________
> Nouveau : téléphonez moins cher avec Yahoo!
> Messenger ! Découvez les tarifs
> exceptionnels pour appeler la France et
> l'international. Téléchargez sur
> http://fr.messenger.yahoo.com
> 
> 



	

	
		
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