[reSIProcate] DNS SRV multiple records and timeouts

[Jorge Bustamante]

Ah we send the 408... nvm...


On Thu, Aug 15, 2013 at 2:02 PM, Jorge Bustamante
<jorge at exarionetworks.com>wrote:

> What if it times out simply because there was no response from the server
> (no 408)?
>
> Regards,
> Jorge Bustamante
>
>
> On Thu, Aug 15, 2013 at 1:46 PM, Scott Godin <sgodin at sipspectrum.com>wrote:
>
>> I'm not understanding this.  If the first path tried times out (ie: 408)
>> then it is greylisted and we try a new path (ignoring the greylisted one)
>>  - the working path then get's whitelisted.
>>
>> Scott
>>
>>
>> On Thu, Aug 15, 2013 at 2:44 PM, Nathan Stratton <nathan at robotics.net>wrote:
>>
>>> Right, got that, but because the first record times out, the 2nd one is
>>> never tried, thus never added to the whitelist.
>>>
>>>
>>> On Thu, Aug 15, 2013 at 1:43 PM, Scott Godin <sgodin at sipspectrum.com>wrote:
>>>
>>>> From the wiki:
>>>>
>>>>    - DNS path is whitelisted when we receive any response that doesn't
>>>>    result in a grey list or a black list
>>>>
>>>>
>>>> By response it is referring to a SIP response (ie: 200, 404, etc.).  So
>>>> once a good path is found, resip will stick to it.
>>>>
>>>> Scott
>>>>
>>>>
>>>> On Thu, Aug 15, 2013 at 2:16 PM, Nathan Stratton <nathan at robotics.net>wrote:
>>>>
>>>>> On Thu, Aug 15, 2013 at 12:44 PM, Scott Godin <sgodin at sipspectrum.com>wrote:
>>>>>
>>>>>> Hi Nathan,
>>>>>>
>>>>>> For Whitelisting - what do you mean about knowing all the hosts
>>>>>> upfront?   I was referring to enabling the resip DNS Whitelisting feature -
>>>>>> this doesn't require knowing anything up front.
>>>>>>
>>>>>
>>>>> I guess I don't understand how a record would get whitelisted. The DUM
>>>>> would get two records back from the SRV record, and try the first that
>>>>> would be grey listed because of a timeout. It looks like a path is
>>>>> whitelisted when there is a response that does not end in grey or black.
>>>>>
>>>>> I guess I thought that because the 2nd record was never tried, you
>>>>> would need to add them to the whitelist before hand so that on the next
>>>>> request you would try the 2nd host first rather then the first timeout host.
>>>>>
>>>>> --
>>>>> ><>
>>>>> Nathan Stratton                                               Founder,
>>>>> CTO Exario Networks, Inc.
>>>>> nathan at robotics.net                                     nathan at
>>>>> exarionetworks.com
>>>>> http://www.robotics.net
>>>>> http://www.exarionetworks.com/
>>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> ><>
>>> Nathan Stratton                                               Founder,
>>> CTO Exario Networks, Inc.
>>> nathan at robotics.net                                     nathan at
>>> exarionetworks.com
>>> http://www.robotics.net
>>> http://www.exarionetworks.com/
>>>
>>
>>
>> _______________________________________________
>> resiprocate-devel mailing list
>> resiprocate-devel at resiprocate.org
>> https://list.resiprocate.org/mailman/listinfo/resiprocate-devel
>>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://list.resiprocate.org/pipermail/resiprocate-devel/attachments/20130815/32d428f3/attachment.htm>