Hi Bogdan,
thank you for the answer.
We didn't send a reply because we used save("LOCATION_DB", "vmrp1").
We removed now the "r" flag, so the reply is sent and now we don't have retransmissions.
So this issue is solved.
But why we get here 2 complete REGISTERs from the client?
I know that we need 2 REGISTERs because of authentication. But the clients sends 2 complete REGISTERs.
I should try to explain the behaviour a little bit better.
SNOM 760 EDGE REGISTRAR MASTER
REGISTRAR SLAVE <Call><PFrame><Time>
| | |
|
| | | |
| F1 REGISTER | | |
|>------------------------------------------------>| |
| 1 PF:1 15:08:15.7530
| | | |
| Trying 100 F2 | | |
|<------------------------------------------------<| |
| 1 PF:2 15:08:15.7537
| | | |
| Unauthorized 401 F3 | | |
|<------------------------------------------------<| |
| 1 PF:3 15:08:15.7539
| | | |
| F4 REGISTER | | |
|>------------------------------------------------>| |
| 1 PF:4 15:08:15.7820
| | | |
| Trying 100 F5 | | |
|<------------------------------------------------<| |
| 1 PF:5 15:08:15.7822
| | | |
| | F6 REGISTER | |
| |>------------------------------------------------>|
| 1 PF:6 15:08:15.7864
| | | |
| | OK 200 F7 | |
| |<------------------------------------------------<|
| 1 PF:7 15:08:15.7871
| | | |
| OK 200 F8 | | |
|<------------------------------------------------<| |
| 1 PF:8 15:08:15.7876
| | | |
| | | F9 REGISTER |
| |
|>------------------------------------------------>| 1 PF:9 15:08:15.7889
| | | |
| F10 REGISTER | | |
|>------------------------------------------------>| |
| 1 PF:10 15:08:15.8249
| | | |
| Trying 100 F11 | | |
|<------------------------------------------------<| |
| 1 PF:11 15:08:15.8250
| | | |
| Unauthorized 401 F12 | | |
|<------------------------------------------------<| |
| 1 PF:12 15:08:15.8251
| | | |
| F13 REGISTER | | |
|>------------------------------------------------>| |
| 1 PF:13 15:08:15.8437
| | | |
| Trying 100 F14 | | |
|<------------------------------------------------<| |
| 1 PF:14 15:08:15.8438
| | | |
| | F15 REGISTER | |
| |>------------------------------------------------>|
| 1 PF:15 15:08:15.8454
| | | |
| | OK 200 F16 | |
| |<------------------------------------------------<|
| 1 PF:16 15:08:15.8462
| | | |
| OK 200 F17 | | |
|<------------------------------------------------<| |
| 1 PF:17 15:08:15.8467
| | | |
| | | F18 REGISTER |
| |
|>------------------------------------------------>| 1 PF:18 15:08:15.8482
| | | |
| | | F19 REGISTER |
| |
|>------------------------------------------------>| 1 PF:19 15:08:16.2952
| | | |
| | | F20 REGISTER |
| |
|>------------------------------------------------>| 1 PF:20 15:08:16.2953
| | | |
| | | F21 REGISTER |
| |
|>------------------------------------------------>| 1 PF:21 15:08:17.2966
| | | |
| | | F22 REGISTER |
| |
|>------------------------------------------------>| 1 PF:22 15:08:17.2967
| | | |
| | | F23 REGISTER |
| |
|>------------------------------------------------>| 1 PF:23 15:08:19.2994
| | | |
| | | F24 REGISTER |
| |
|>------------------------------------------------>| 1 PF:24 15:08:19.2995
| | | |
| | | F25 REGISTER |
| |
|>------------------------------------------------>| 1 PF:25 15:08:23.4061
| | | |
| | | F26 REGISTER |
| |
|>------------------------------------------------>| 1 PF:26 15:08:23.4061
==================================================================================================================================================================================================
Kind regards,
Julian Santer
Raiffeisen OnLine
Am 18.11.2015 um 23:25 schrieb Bogdan-Andrei Iancu:
> Hi Julian,
>
> There are 2 REGISTERs because of authentication - first is without credentials, the second has credentials (as a reaction of the auth challenge from
> the first REGISTER)
>
> In the second trace, the additional REGISTERs from master to slave are SIP transmissions (the t_replicate() acts as a t_relay(), so it does
> retransmissions until it gets a reply back) - I see not SIP reply from the slave back to master
>
> Best regards,
>
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developer
> http://www.opensips-solutions.com
>
> On 17.11.2015 18:37, Julian Santer wrote:
>> Hi guys,
>>
>> we have encountered the following problem.
>> Our UAC (Snom 760) sends 2 register for the same contact to our edge servers.
>> Our edge server sends the register to registrar (master). The registrar replicates the register to the registrar (slave).
>> The flow of first register seems ok (http://siptrace.rolbox.net/register_first.html).
>> The second register ends also in a 200 OK. But the register master replicates the register 9 times (http://siptrace.rolbox.net/register_second.html).
>>
>> So my qeustions are:
>> - why the UAC send the register twice for the same contact? Also other clients like a AVM Fritzbox send the register twice.
>> - why the registrar master replicates the register multiple times?
>>
>> IP's and domains are obfuscated.
>>
>> On the edge server we do (5.6.7.8):
>>
>> $rd = "5.6.7.9";
>> t_on_branch("BR_REGISTER");
>> if (! t_relay("0x05"))
>> {
>> send_reply("500", "Internal server error - failed to relay");
>> xlog("L_ERR", "Unable to relay REGISTER - LF_BASE");
>> }
>> xlog("L_INFO", "Routing register to registrar - LF_BASE");
>>
>> On the registrars (5.6.7.9 and 5.6.7.10):
>>
>> xlog("L_INFO", "REGISTER received from $si - LF_BASE");
>>
>> if (src_ip == 5.6.7.9 || src_ip == 5.6.7.10)
>> {
>> if (! save("LOCATION_DB", "vmrp1"))
>> {
>> xlog("L_ERR", "Saving contact from master failed - LF_BASE");
>> exit;
>> }
>> xlog("L_INFO", "Saving contact received from master - LF_BASE");
>> t_on_branch("BR_DROP");
>> }
>> else
>> {
>> if(!save("LOCATION_DB", "vp1"))
>> {
>> xlog("L_ERR", "Saving contact from edge failed - LF_BASE");
>> t_replicate("sip:REGISTRAR_SLAVE", "0x04");
>> exit;
>> }
>> xlog("L_INFO", "Saving contact received from edge, replicate to REGISTRAR_SLAVE - LF_BASE");
>> t_replicate("sip:REGISTRAR_SLAVE", "0x04");
>> t_on_branch("BR_DROP");
>> }
>>
>> if ($(hdr(Contact)) == null)
>> {
>> xlog("L_INFO", "Retrieving locations - LF_BASE");
>> } else {
>> xlog("L_INFO", "Registration successful - LF_BASE");
>> }
>> exit;
>>
>> LOCATION_DB is the location table name for the registrars (2 registrars, 2 tables)
>> REGISTRAR_SLAVE is the domain name of the respective registrar slave.
>> The servers are in the same network, connected over layer 2.
>>
>> Let me know if you need further informations.
>>
>> Best regards,
>> Julian Santer
>> Raiffeisen OnLine
>>
>>
>> _______________________________________________
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>> Users at lists.opensips.org
>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>>
>
>