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@isc.upenn.edu a écrit :
hgaillac-sip@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.
SER1DNS 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@isc.upenn.edu a écrit :
Sorry. I don't do diagrams :-) Which piece of this explanation is unclear?
-Steve
hgaillac-sip@yahoo.fr wrote:
Could you please send me a diagram ?
Harry --- Steve Blair blairs@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@yahoo.fr wrote:
Ok so vrrp for layer 2/3 but which solution for
H-A
?
Harry --- Steve Blair blairs@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@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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hgaillac-sip@yahoo.fr wrote:
I use NAGIOS to monitor SER to know when a server of applications on that server have ...
Can you tell me more ?
sipsak can be configured to respond with Nagios result codes. I think the option is -n. Nagios has been setup to execute sipsak with an input file that contains a specific notify message. This message has an event type of "keep-alive". When my proxies see this event from our nagios host they respond with a 200 ok. This is sufficient to "verify" that the proxy is operational at a sip level or so we like to believe :-)
Steve
Harry --- Steve Blair blairs@isc.upenn.edu a écrit :
hgaillac-sip@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.
SER1DNS 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@isc.upenn.edu a écrit :
Sorry. I don't do diagrams :-) Which piece of this explanation is unclear?
-Steve
hgaillac-sip@yahoo.fr wrote:
Could you please send me a diagram ?
Harry --- Steve Blair blairs@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@yahoo.fr wrote:
>Ok so vrrp for layer 2/3 but which solution for > > > >
H-A
> > > > > > ?
>Harry >--- Steve Blair blairs@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@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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On Wednesday 01 February 2006 15:21, Steve Blair wrote:
hgaillac-sip@yahoo.fr wrote:
I use NAGIOS to monitor SER to know when a server of applications on that server have ...
Can you tell me more ?
sipsak can be configured to respond with Nagios result codes. I think the option is -n. Nagios has been setup to execute sipsak with an input file that contains a specific notify message. This message has an event type of "keep-alive". When my proxies see this event from our nagios host they respond with a 200 ok. This is sufficient to "verify" that the proxy is operational at a sip level or so we like to believe :-)
BTW it should be fairly easy to extend this check to a REGISTER with authentication. sipsak will return the same Nagios compliant return codes. You could even think about trying an INVITE, allthough this might depend a lot on your SER config if the self-INVITE's from sipsak will pass trough it.
Nils
Steve
Harry
--- Steve Blair blairs@isc.upenn.edu a écrit :
hgaillac-sip@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.
SER1DNS 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@isc.upenn.edu a écrit :
Sorry. I don't do diagrams :-) Which piece of this explanation is unclear?
-Steve
hgaillac-sip@yahoo.fr wrote:
Could you please send me a diagram ?
Harry
--- Steve Blair blairs@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@yahoo.fr wrote: >>Ok so vrrp for layer 2/3 but which solution for
H-A
>? > >>Harry >>--- Steve Blair blairs@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@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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Nils Ohlmeier wrote:
On Wednesday 01 February 2006 15:21, Steve Blair wrote:
hgaillac-sip@yahoo.fr wrote:
I use NAGIOS to monitor SER to know when a server of applications on that server have ...
Can you tell me more ?
sipsak can be configured to respond with Nagios result codes. I think the option is -n. Nagios has been setup to execute sipsak with an input file that contains a specific notify message. This message has an event type of "keep-alive". When my proxies see this event from our nagios host they respond with a 200 ok. This is sufficient to "verify" that the proxy is operational at a sip level or so we like to believe :-)
BTW it should be fairly easy to extend this check to a REGISTER with authentication. sipsak will return the same Nagios compliant return codes. You could even think about trying an INVITE, allthough this might depend a lot on your SER config if the self-INVITE's from sipsak will pass trough it.
Yep. Thanks for the follow-up.
_Steve
Nils
Steve
Harry
--- Steve Blair blairs@isc.upenn.edu a écrit :
hgaillac-sip@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.
SER1DNS 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@isc.upenn.edu a écrit :
Sorry. I don't do diagrams :-) Which piece of this explanation is unclear?
-Steve
hgaillac-sip@yahoo.fr wrote:
>Could you please send me a diagram ? > >Harry > >--- Steve Blair blairs@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@yahoo.fr wrote: >> >> >>>Ok so vrrp for layer 2/3 but which solution for >>> >>> H-A
>>? >> >> >> >>>Harry >>>--- Steve Blair blairs@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@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 ===
_ 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
-
hgaillac-sip＠yahoo.fr -
Nils Ohlmeier -
Steve Blair