1 Feb
2006
1 Feb
'06
2:53 p.m.
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(a)isc.upenn.edu> a écrit :
hgaillac-sip(a)yahoo.fr wrote:
=== message truncated ===
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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(a)isc.upenn.edu> a écrit :
>Sorry. I don't do diagrams :-) Which piece of this
>explanation is unclear?
>
>-Steve
>
>hgaillac-sip(a)yahoo.fr wrote:
>
>
>
>>Could you please send me a diagram ?
>>
>>Harry
>>--- Steve Blair <blairs(a)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(a)yahoo.fr wrote:
>>>
>>>
>>>
>>>
>>>
>>>>Ok so vrrp for layer 2/3 but which solution for
>>>>
>>>>
>H-A
>
>
>>>>
>>>>
>>>>
>>>>
>>>?
>>>
>>>
>>>
>>>
>>>>Harry
>>>>--- Steve Blair <blairs(a)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(a)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
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>___________________________________________________________________________
>>>