[Serusers] failover and VRRP

[hgaillac-sip at yahoo.fr]

> I use NAGIOS to 
> monitor SER to know when a server of applications on
> that server have ...

Can you tell me more ?

Harry 
--- Steve Blair <blairs at isc.upenn.edu> a écrit :

> 
> 
> hgaillac-sip at yahoo.fr wrote:
> 
> >Hello,
> >
> >Ok SRV records point to proxy sip server but if
> this
> >one is down before or during connection !!!
> >
> >  
> >
> During a connection doesn't matter in my
> environment. I am running SER 
> in a stateless
> mode. Once the call is setup media flows between
> endpoints and the proxy 
> is out of the
> connection. I am not using NAT either.
> 
> >              SER1
> >DNS servers=== [?] =====sip agents
> >              SER2
> >
> >How [?] can it provide H-A (heartbeat soft) between
> >ser boxes.
> >
> >  
> >
> Neither the SRV or VRRP can provide a heartbeat
> between SER boxes. You'd 
> need an application running on the SER boxes to do
> that. I rely upon 
> t_replicate to update the backup during
> registration, I use NAGIOS to 
> monitor SER to know when a server of applications on
> that server have 
> failed and I use an SRV record defined in each phone
> to identify the 
> proxy. This way the phone will failover on it's own
> during call setup. 
> Of course this doesn't help during a call but as I
> said I am running SER 
> in a stateless mode so the proxy "steps out" once
> the call is setup.
> 
> >If one of these sip proxy failed during a call can
> we
> >redirect the call to the other proxy ?
> >  
> >
> I'm not sure how you would accomplish this.
> 
> >Regards
> >Harry
> >
> >--- Steve Blair <blairs at isc.upenn.edu> a écrit :
> >
> >  
> >
> >>Sorry. I don't do diagrams :-) Which piece of this
> >>explanation is unclear?
> >>
> >>-Steve
> >>
> >>hgaillac-sip at yahoo.fr wrote:
> >>
> >>    
> >>
> >>>Could you please send me a diagram ?
> >>>
> >>>Harry
> >>>--- Steve Blair <blairs at isc.upenn.edu> a écrit :
> >>>
> >>> 
> >>>
> >>>      
> >>>
> >>>>VRRP for layer 3.  H-A woud depend upon your
> >>>>availability requirements. 
> >>>>In our case we use an SRV record to identify
> >>>>multiple proxy servers each 
> >>>>with their own priority and weight. Phones
> >>>>        
> >>>>
> >>register
> >>    
> >>
> >>>>using the SRV name 
> >>>>as the proxy address. Each proxy uses
> t_replicate
> >>>>        
> >>>>
> >>to
> >>    
> >>
> >>>>replicate 
> >>>>registration data. So far this works for us.
> >>>>
> >>>>_Steve
> >>>>
> >>>>hgaillac-sip at yahoo.fr wrote:
> >>>>
> >>>>   
> >>>>
> >>>>        
> >>>>
> >>>>>Ok so vrrp for layer 2/3 but which solution for
> >>>>>          
> >>>>>
> >>H-A
> >>    
> >>
> >>>>>     
> >>>>>
> >>>>>          
> >>>>>
> >>>>?
> >>>>   
> >>>>
> >>>>        
> >>>>
> >>>>>Harry
> >>>>>--- Steve Blair <blairs at isc.upenn.edu> a écrit
> :
> >>>>>
> >>>>>
> >>>>>
> >>>>>     
> >>>>>
> >>>>>          
> >>>>>
> >>>>>>Harry:
> >>>>>>
> >>>>>> Assuming you are talking about running VRRP
> in
> >>>>>>your routers and not 
> >>>>>>on the Asterisk host itself then the answer is
> a
> >>>>>>qualified yes. VRRP by 
> >>>>>>itself won't give you the transparency of an
> SRV
> >>>>>>record for identifying 
> >>>>>>your proxy servers. It will allow you to have
> >>>>>>automatic failover to 
> >>>>>>backup gateways should the primary gateway
> >>>>>>            
> >>>>>>
> >>to/from
> >>    
> >>
> >>>>>>your "SER subnet" fail.
> >>>>>>
> >>>>>>-Steve
> >>>>>>
> >>>>>>hgaillac-sip at yahoo.fr wrote:
> >>>>>>
> >>>>>>  
> >>>>>>
> >>>>>>       
> >>>>>>
> >>>>>>            
> >>>>>>
> >>>>>>>hello,
> >>>>>>>
> >>>>>>>Can we use VRRP when a SER is down ?
> >>>>>>>
> >>>>>>>
> >>>>>>>            SER1 (master)
> >>>>>>>sip agents == ||  === Asterisk Farm==sip/pstn
> >>>>>>>    
> >>>>>>>
> >>>>>>>         
> >>>>>>>
> >>>>>>>              
> >>>>>>>
> >>>>>>gateway
> >>>>>>  
> >>>>>>
> >>>>>>       
> >>>>>>
> >>>>>>            
> >>>>>>
> >>>>>>>            SER2 (slave)
> >>>>>>>
> >>>>>>>Regards
> >>>>>>>Harry
> >>>>>>>
> >>>>>>>
> >>>>>>>	
> >>>>>>>
> >>>>>>>	
> >>>>>>>		
> >>>>>>>    
> >>>>>>>
> >>>>>>>         
> >>>>>>>
> >>>>>>>              
> >>>>>>>
>
>>>>___________________________________________________________________________
> >>>>        
> 
=== message truncated ===



	

	
		
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