Best practice for Kamailio "cluster" front for many TLS connections

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Angelo Sipper

11 Sep 2021 11 Sep '21

4:11 p.m.

Hello, We are thinking to use kamailio to fully support our current voip service. I would like to know what is the best practice to use kamailio for several thousands for clients that connect to us via TLS. We would like to have a front "cluster" to be able to handle all these connections in balanced way. All clients register to us and the do calls that we statefully forward to the provider. On our test we have already created a single kamailio that successfully accepts and handles registration, do the control and routing to next provider with dispatcher and also do the accounting with cdrs. We want to separate this controlling, routing, accounting and dispatching from the front end and create a front "cluster" to offload the TLS and also be redundant to as many connections by adding more kamailio's. What would be the best kamailio module and topology as solution to this requirement? Thank you in advance. Kind Regards, Angelo

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Fred Posner

11 Sep 11 Sep

5:03 p.m.

On 9/11/21 10:11 AM, Angelo Sipper wrote:

...

Hello, We are thinking to use kamailio to fully support our current voip service. [snip] What would be the best kamailio module and topology as solution to this requirement?

Angelo Sipper

8:52 p.m.

Hi Fred, Thanks for the suggestions. I have been looking to all these presentations mostly from Rasvan but, he mostly suggesting clusterer module combined with anycast which I cannot locate on current version 5.x. Can you help me on what is the replacement for this? Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 6:04 μ.μ., ο/η Fred Posner <fred(a)palner.com> έγραψε:

...

On 9/11/21 10:11 AM, Angelo Sipper wrote:

Hello, We are thinking to use kamailio to fully support our current voip

service.

[snip] What would be the best kamailio module and topology as solution to this requirement?

Sergey Safarov

9:43 p.m.

I thinking about using glb-director as a front-end load balancer for a set of Kamailio servers. This allows the use of one IP address for all Kamailio servers (like anycast) in different data centers. And use the same IP address for RTP traffic. If you want, I can help you configure the test-bed of this approach. On Sat, Sep 11, 2021 at 9:53 PM Angelo Sipper <sippro97(a)gmail.com> wrote:

...

On 9/11/21 10:11 AM, Angelo Sipper wrote:

Hello, We are thinking to use kamailio to fully support our current voip

service.

[snip] What would be the best kamailio module and topology as solution to this requirement?

__________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions * sr-users(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

Henning Westerholt

10:03 p.m.

Hello Angelo, it is possible to use Kamailio with an anycast setup, there are two talks in the last years KamailioWorld conference about more details. But if we are only talking about several thousand clients, it’s not needed for a start. Its certainly possible to operate this just with one front-end Kamailio in an activate/passive setup, many people do this. E.g., look to this (rather old) performance tests, 1.000.000 contacts with TLS on one server http://sip-router.org/wiki/performance/v3.0-capacity Kamailio has no cluster module, you probably want to investigate the DMQ module which offers clustering capabilities. Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.com<https://gilawa.com/> From: sr-users <sr-users-bounces(a)lists.kamailio.org> On Behalf Of Angelo Sipper Sent: Saturday, September 11, 2021 8:52 PM To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org> Subject: Re: [SR-Users] Best practice for Kamailio "cluster" front for many TLS connections Hi Fred, Thanks for the suggestions. I have been looking to all these presentations mostly from Rasvan but, he mostly suggesting clusterer module combined with anycast which I cannot locate on current version 5.x. Can you help me on what is the replacement for this? Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 6:04 μ.μ., ο/η Fred Posner <fred@palner.com<mailto:fred@palner.com>> έγραψε: On 9/11/21 10:11 AM, Angelo Sipper wrote:

...

Hello, We are thinking to use kamailio to fully support our current voip service. [snip] What would be the best kamailio module and topology as solution to this requirement?

Angelo Sipper

11:44 p.m.

HI, Thanks for all the suggestions. I will look into glb-director and I will come back in case I need more help. As I understand for same DC and two Kamailio's on active/standby with keepalived is fine, at least for the load we are expecting now. Now one question on DMQ. Up today with the one only Kamailio we are using the dialog db_mode 1 to have all dialogs in db, in order not to loose the dialogs in case of reload. When we will have 2 Kamailio's with DMQ sync for all dialogs, in case of one Kamailios reloads it will get all active dialogs from the other Kamailio without the need to have the DB to handle this and also delay the system. Is this the correct approach? Last, do you know any updated doc for Anycast - Kamailio like the one here for the older version 2.4 ? https://blog.opensips.org/2018/03/21/full-anycast-support-in-opensips-2-4/ Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 11:03 μ.μ., ο/η Henning Westerholt < hw(a)skalatan.de> έγραψε:

...

Hello Angelo, it is possible to use Kamailio with an anycast setup, there are two talks in the last years KamailioWorld conference about more details. But if we are only talking about several thousand clients, it’s not needed for a start. Its certainly possible to operate this just with one front-end Kamailio in an activate/passive setup, many people do this. E.g., look to this (rather old) performance tests, 1.000.000 contacts with TLS on one server http://sip-router.org/wiki/performance/v3.0-capacity Kamailio has no cluster module, you probably want to investigate the DMQ module which offers clustering capabilities. Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.com *From:* sr-users <sr-users-bounces(a)lists.kamailio.org> *On Behalf Of *Angelo Sipper *Sent:* Saturday, September 11, 2021 8:52 PM *To:* Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org> *Subject:* Re: [SR-Users] Best practice for Kamailio "cluster" front for many TLS connections Hi Fred, Thanks for the suggestions. I have been looking to all these presentations mostly from Rasvan but, he mostly suggesting clusterer module combined with anycast which I cannot locate on current version 5.x. Can you help me on what is the replacement for this? Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 6:04 μ.μ., ο/η Fred Posner <fred(a)palner.com> έγραψε: On 9/11/21 10:11 AM, Angelo Sipper wrote:

Hello, We are thinking to use kamailio to fully support our current voip

service.

[snip] What would be the best kamailio module and topology as solution to this requirement?

Fred Posner

12 Sep 12 Sep

12:28 a.m.

To be clear here, this is the kamailio list and you’ve been referencing opensips documentation. -- Fred (via mobile) Matrix: @fred:matrix.lod.com

...

On Sep 11, 2021, at 5:46 PM, Angelo Sipper <sippro97(a)gmail.com> wrote: HI, Thanks for all the suggestions. I will look into glb-director and I will come back in case I need more help. As I understand for same DC and two Kamailio's on active/standby with keepalived is fine, at least for the load we are expecting now. Now one question on DMQ. Up today with the one only Kamailio we are using the dialog db_mode 1 to have all dialogs in db, in order not to loose the dialogs in case of reload. When we will have 2 Kamailio's with DMQ sync for all dialogs, in case of one Kamailios reloads it will get all active dialogs from the other Kamailio without the need to have the DB to handle this and also delay the system. Is this the correct approach? Last, do you know any updated doc for Anycast - Kamailio like the one here for the older version 2.4 ? https://blog.opensips.org/2018/03/21/full-anycast-support-in-opensips-2-4/ Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 11:03 μ.μ., ο/η Henning Westerholt <hw(a)skalatan.de> έγραψε:

Hello Angelo, it is possible to use Kamailio with an anycast setup, there are two talks in the last years KamailioWorld conference about more details. But if we are only talking about several thousand clients, it’s not needed for a start. Its certainly possible to operate this just with one front-end Kamailio in an activate/passive setup, many people do this. E.g., look to this (rather old) performance tests, 1.000.000 contacts with TLS on one server http://sip-router.org/wiki/performance/v3.0-capacity Kamailio has no cluster module, you probably want to investigate the DMQ module which offers clustering capabilities. Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.com From: sr-users <sr-users-bounces(a)lists.kamailio.org> On Behalf Of Angelo Sipper Sent: Saturday, September 11, 2021 8:52 PM To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org> Subject: Re: [SR-Users] Best practice for Kamailio "cluster" front for many TLS connections Hi Fred, Thanks for the suggestions. I have been looking to all these presentations mostly from Rasvan but, he mostly suggesting clusterer module combined with anycast which I cannot locate on current version 5.x. Can you help me on what is the replacement for this? Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 6:04 μ.μ., ο/η Fred Posner <fred(a)palner.com> έγραψε: On 9/11/21 10:11 AM, Angelo Sipper wrote:

Hello, We are thinking to use kamailio to fully support our current voip service. [snip] What would be the best kamailio module and topology as solution to this requirement?

Angelo Sipper

11:44 a.m.

Sorry Fred, I believe, my question was wrongly asked. The correct question would be, Is there a guide for Kamailio and Anycast that anyone could point me to read? But, my main question is about the DMQ on two Kamailio nodes and what happens in case one of them reloads. Are the dialogs and useloc synced automatically on reload? Is there a template config to read about this? Kind Regards, Angelo Στις Κυρ, 12 Σεπ 2021 στις 1:30 π.μ., ο/η Fred Posner <fred(a)palner.com> έγραψε:

...

To be clear here, this is the kamailio list and you’ve been referencing opensips documentation. -- Fred (via mobile) Matrix: @fred:matrix.lod.com On Sep 11, 2021, at 5:46 PM, Angelo Sipper <sippro97(a)gmail.com> wrote: HI, Thanks for all the suggestions. I will look into glb-director and I will come back in case I need more help. As I understand for same DC and two Kamailio's on active/standby with keepalived is fine, at least for the load we are expecting now. Now one question on DMQ. Up today with the one only Kamailio we are using the dialog db_mode 1 to have all dialogs in db, in order not to loose the dialogs in case of reload. When we will have 2 Kamailio's with DMQ sync for all dialogs, in case of one Kamailios reloads it will get all active dialogs from the other Kamailio without the need to have the DB to handle this and also delay the system. Is this the correct approach? Last, do you know any updated doc for Anycast - Kamailio like the one here for the older version 2.4 ? https://blog.opensips.org/2018/03/21/full-anycast-support-in-opensips-2-4/ Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 11:03 μ.μ., ο/η Henning Westerholt < hw(a)skalatan.de> έγραψε:

Hello Angelo, it is possible to use Kamailio with an anycast setup, there are two talks in the last years KamailioWorld conference about more details. But if we are only talking about several thousand clients, it’s not needed for a start. Its certainly possible to operate this just with one front-end Kamailio in an activate/passive setup, many people do this. E.g., look to this (rather old) performance tests, 1.000.000 contacts with TLS on one server http://sip-router.org/wiki/performance/v3.0-capacity Kamailio has no cluster module, you probably want to investigate the DMQ module which offers clustering capabilities. Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.com *From:* sr-users <sr-users-bounces(a)lists.kamailio.org> *On Behalf Of *Angelo Sipper *Sent:* Saturday, September 11, 2021 8:52 PM *To:* Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org> *Subject:* Re: [SR-Users] Best practice for Kamailio "cluster" front for many TLS connections Hi Fred, Thanks for the suggestions. I have been looking to all these presentations mostly from Rasvan but, he mostly suggesting clusterer module combined with anycast which I cannot locate on current version 5.x. Can you help me on what is the replacement for this? Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 6:04 μ.μ., ο/η Fred Posner <fred(a)palner.com> έγραψε: On 9/11/21 10:11 AM, Angelo Sipper wrote:

Hello, We are thinking to use kamailio to fully support our current voip

service.

[snip] What would be the best kamailio module and topology as solution to this requirement?

Kamailio - Users Mailing List - Non Commercial Discussions * sr-users(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions * sr-users(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

Henning Westerholt

13 Sep 13 Sep

8:15 a.m.

Hello, I would suggest having a look at the presentation from Armen, and probably others from past KamailioWorld: https://www.youtube.com/c/KamailioWorld/search?query=anycast Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.com<https://gilawa.com/> From: sr-users <sr-users-bounces(a)lists.kamailio.org> On Behalf Of Angelo Sipper Sent: Sunday, September 12, 2021 11:44 AM To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org> Subject: Re: [SR-Users] Best practice for Kamailio "cluster" front for many TLS connections Sorry Fred, I believe, my question was wrongly asked. The correct question would be, Is there a guide for Kamailio and Anycast that anyone could point me to read? But, my main question is about the DMQ on two Kamailio nodes and what happens in case one of them reloads. Are the dialogs and useloc synced automatically on reload? Is there a template config to read about this? Kind Regards, Angelo Στις Κυρ, 12 Σεπ 2021 στις 1:30 π.μ., ο/η Fred Posner <fred@palner.com<mailto:fred@palner.com>> έγραψε: To be clear here, this is the kamailio list and you’ve been referencing opensips documentation. -- Fred (via mobile) Matrix: @fred:matrix.lod.com<http://matrix.lod.com> On Sep 11, 2021, at 5:46 PM, Angelo Sipper <sippro97@gmail.com<mailto:sippro97@gmail.com>> wrote: HI, Thanks for all the suggestions. I will look into glb-director and I will come back in case I need more help. As I understand for same DC and two Kamailio's on active/standby with keepalived is fine, at least for the load we are expecting now. Now one question on DMQ. Up today with the one only Kamailio we are using the dialog db_mode 1 to have all dialogs in db, in order not to loose the dialogs in case of reload. When we will have 2 Kamailio's with DMQ sync for all dialogs, in case of one Kamailios reloads it will get all active dialogs from the other Kamailio without the need to have the DB to handle this and also delay the system. Is this the correct approach? Last, do you know any updated doc for Anycast - Kamailio like the one here for the older version 2.4 ? https://blog.opensips.org/2018/03/21/full-anycast-support-in-opensips-2-4/ Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 11:03 μ.μ., ο/η Henning Westerholt <hw@skalatan.de<mailto:hw@skalatan.de>> έγραψε: Hello Angelo, it is possible to use Kamailio with an anycast setup, there are two talks in the last years KamailioWorld conference about more details. But if we are only talking about several thousand clients, it’s not needed for a start. Its certainly possible to operate this just with one front-end Kamailio in an activate/passive setup, many people do this. E.g., look to this (rather old) performance tests, 1.000.000 contacts with TLS on one server http://sip-router.org/wiki/performance/v3.0-capacity Kamailio has no cluster module, you probably want to investigate the DMQ module which offers clustering capabilities. Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.com<https://gilawa.com/> From: sr-users <sr-users-bounces@lists.kamailio.org<mailto:sr-users-bounces@lists.kamailio.org>> On Behalf Of Angelo Sipper Sent: Saturday, September 11, 2021 8:52 PM To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org<mailto:sr-users@lists.kamailio.org>> Subject: Re: [SR-Users] Best practice for Kamailio "cluster" front for many TLS connections Hi Fred, Thanks for the suggestions. I have been looking to all these presentations mostly from Rasvan but, he mostly suggesting clusterer module combined with anycast which I cannot locate on current version 5.x. Can you help me on what is the replacement for this? Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 6:04 μ.μ., ο/η Fred Posner <fred@palner.com<mailto:fred@palner.com>> έγραψε: On 9/11/21 10:11 AM, Angelo Sipper wrote:

...

Hello, We are thinking to use kamailio to fully support our current voip service. [snip] What would be the best kamailio module and topology as solution to this requirement?

Markus Monka

8:46 a.m.

...

Hello, I would suggest having a look at the presentation from Armen, and probably others from past KamailioWorld: https://www.youtube.com/c/KamailioWorld/search?query=anycast Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.com *From:* sr-users <sr-users-bounces(a)lists.kamailio.org> *On Behalf Of *Angelo Sipper *Sent:* Sunday, September 12, 2021 11:44 AM *To:* Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org> *Subject:* Re: [SR-Users] Best practice for Kamailio "cluster" front for many TLS connections Sorry Fred, I believe, my question was wrongly asked. The correct question would be, Is there a guide for Kamailio and Anycast that anyone could point me to read? But, my main question is about the DMQ on two Kamailio nodes and what happens in case one of them reloads. Are the dialogs and useloc synced automatically on reload? Is there a template config to read about this? Kind Regards, Angelo Στις Κυρ, 12 Σεπ 2021 στις 1:30 π.μ., ο/η Fred Posner <fred(a)palner.com> έγραψε: To be clear here, this is the kamailio list and you’ve been referencing opensips documentation. -- Fred (via mobile) Matrix: @fred:matrix.lod.com On Sep 11, 2021, at 5:46 PM, Angelo Sipper <sippro97(a)gmail.com> wrote: HI, Thanks for all the suggestions. I will look into glb-director and I will come back in case I need more help. As I understand for same DC and two Kamailio's on active/standby with keepalived is fine, at least for the load we are expecting now. Now one question on DMQ. Up today with the one only Kamailio we are using the dialog db_mode 1 to have all dialogs in db, in order not to loose the dialogs in case of reload. When we will have 2 Kamailio's with DMQ sync for all dialogs, in case of one Kamailios reloads it will get all active dialogs from the other Kamailio without the need to have the DB to handle this and also delay the system. Is this the correct approach? Last, do you know any updated doc for Anycast - Kamailio like the one here for the older version 2.4 ? https://blog.opensips.org/2018/03/21/full-anycast-support-in-opensips-2-4/ Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 11:03 μ.μ., ο/η Henning Westerholt < hw(a)skalatan.de> έγραψε: Hello Angelo, it is possible to use Kamailio with an anycast setup, there are two talks in the last years KamailioWorld conference about more details. But if we are only talking about several thousand clients, it’s not needed for a start. Its certainly possible to operate this just with one front-end Kamailio in an activate/passive setup, many people do this. E.g., look to this (rather old) performance tests, 1.000.000 contacts with TLS on one server http://sip-router.org/wiki/performance/v3.0-capacity Kamailio has no cluster module, you probably want to investigate the DMQ module which offers clustering capabilities. Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.com *From:* sr-users <sr-users-bounces(a)lists.kamailio.org> *On Behalf Of *Angelo Sipper *Sent:* Saturday, September 11, 2021 8:52 PM *To:* Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org> *Subject:* Re: [SR-Users] Best practice for Kamailio "cluster" front for many TLS connections Hi Fred, Thanks for the suggestions. I have been looking to all these presentations mostly from Rasvan but, he mostly suggesting clusterer module combined with anycast which I cannot locate on current version 5.x. Can you help me on what is the replacement for this? Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 6:04 μ.μ., ο/η Fred Posner <fred(a)palner.com> έγραψε: On 9/11/21 10:11 AM, Angelo Sipper wrote:

Hello, We are thinking to use kamailio to fully support our current voip

service.

[snip] What would be the best kamailio module and topology as solution to this requirement?

Daniel-Constantin Mierla

14 Sep 14 Sep

2:41 p.m.

...

Hi, we did some testing with ipvs but unfortunately where not been able to pursue it further. Today we use NAPTR/SRV Records for balancing to several TCP Loadbalancers. Best Regards Markus On Mon, Sep 13, 2021 at 8:19 AM Henning Westerholt <hw(a)skalatan.de <mailto:hw@skalatan.de>> wrote: Hello, I would suggest having a look at the presentation from Armen, and probably others from past KamailioWorld: https://www.youtube.com/c/KamailioWorld/search?query=anycast <https://www.youtube.com/c/KamailioWorld/search?query=anycast> Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ <https://skalatan.de/blog/> Kamailio services – https://gilawa.com <https://gilawa.com/> *From:* sr-users <sr-users-bounces(a)lists.kamailio.org <mailto:sr-users-bounces@lists.kamailio.org>> *On Behalf Of *Angelo Sipper *Sent:* Sunday, September 12, 2021 11:44 AM *To:* Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org>> *Subject:* Re: [SR-Users] Best practice for Kamailio "cluster" front for many TLS connections Sorry Fred, I believe, my question was wrongly asked. The correct question would be, Is there a guide for Kamailio and Anycast that anyone could point me to read? But, my main question is about the DMQ on two Kamailio nodes and what happens in case one of them reloads. Are the dialogs and useloc synced automatically on reload? Is there a template config to read about this? Kind Regards, Angelo Στις Κυρ, 12 Σεπ 2021 στις 1:30 π.μ., ο/η Fred Posner <fred(a)palner.com <mailto:fred@palner.com>> έγραψε: To be clear here, this is the kamailio list and you’ve been referencing opensips documentation. -- Fred (via mobile) Matrix: @fred:matrix.lod.com <http://matrix.lod.com> On Sep 11, 2021, at 5:46 PM, Angelo Sipper <sippro97(a)gmail.com <mailto:sippro97@gmail.com>> wrote: HI, Thanks for all the suggestions. I will look into glb-director and I will come back in case I need more help. As I understand for same DC and two Kamailio's on active/standby with keepalived is fine, at least for the load we are expecting now. Now one question on DMQ. Up today with the one only Kamailio we are using the dialog db_mode 1 to have all dialogs in db, in order not to loose the dialogs in case of reload. When we will have 2 Kamailio's with DMQ sync for all dialogs, in case of one Kamailios reloads it will get all active dialogs from the other Kamailio without the need to have the DB to handle this and also delay the system. Is this the correct approach? Last, do you know any updated doc for Anycast - Kamailio like the one here for the older version 2.4 ? https://blog.opensips.org/2018/03/21/full-anycast-support-in-opensips-2-4/ <https://blog.opensips.org/2018/03/21/full-anycast-support-in-opensips-2-4/> Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 11:03 μ.μ., ο/η Henning Westerholt <hw(a)skalatan.de <mailto:hw@skalatan.de>> έγραψε: Hello Angelo, it is possible to use Kamailio with an anycast setup, there are two talks in the last years KamailioWorld conference about more details. But if we are only talking about several thousand clients, it’s not needed for a start. Its certainly possible to operate this just with one front-end Kamailio in an activate/passive setup, many people do this. E.g., look to this (rather old) performance tests, 1.000.000 contacts with TLS on one server http://sip-router.org/wiki/performance/v3.0-capacity <http://sip-router.org/wiki/performance/v3.0-capacity> Kamailio has no cluster module, you probably want to investigate the DMQ module which offers clustering capabilities. Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ <https://skalatan.de/blog/> Kamailio services – https://gilawa.com <https://gilawa.com/> *From:* sr-users <sr-users-bounces(a)lists.kamailio.org <mailto:sr-users-bounces@lists.kamailio.org>> *On Behalf Of *Angelo Sipper *Sent:* Saturday, September 11, 2021 8:52 PM *To:* Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org>> *Subject:* Re: [SR-Users] Best practice for Kamailio "cluster" front for many TLS connections Hi Fred, Thanks for the suggestions. I have been looking to all these presentations mostly from Rasvan but, he mostly suggesting clusterer module combined with anycast which I cannot locate on current version 5.x. Can you help me on what is the replacement for this? Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 6:04 μ.μ., ο/η Fred Posner <fred(a)palner.com <mailto:fred@palner.com>> έγραψε: On 9/11/21 10:11 AM, Angelo Sipper wrote:

Hello, We are thinking to use kamailio to fully support

our current voip service.

[snip] What would be the best kamailio module and topology as solution to this requirement?

When designing a Kamailio deployment for several thousand plus clients, there are many factors to consider... including network topology, future growth plans, high availability, redundancy, etc. The quick answer top your question is: It depends. There are many discussions and presentations made over the years including some posted to the kamailioworld youtube channel (youtube,com/c/kamailioworld) as well as slides regarding large scale deployments (such as 1&1). With best regards, Fred Posner | palner.com <http://palner.com> Matrix: @fred:matrix.lod.com <http://matrix.lod.com> o: +1 (212) 937-7844 __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions * sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org> Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users> __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions * sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org> Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users> __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions * sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org> Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users> __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions * sr-users(a)lists.kamailio.org <mailto:sr-users@lists.kamailio.org> Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users <https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users> -- Dipl. Ing. Markus Monka - mmonka(a)sipgate.de <mailto:mmonka@sipgate.de> Telefon: +49 (0)211-63 55 55-23 Telefax: +49 (0)211-63 55 55-22 sipgate GmbH - Gladbacher Str. 74 - 40219 Düsseldorf HRB Düsseldorf 39841 - Geschäftsführer: Thilo Salmon, Tim Mois Steuernummer: 106/5724/7147, Umsatzsteuer-ID: DE219349391 __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions * sr-users(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

-- Daniel-Constantin Mierla -- www.asipto.com www.twitter.com/miconda -- www.linkedin.com/in/miconda

Patrick Wakano

15 Sep 15 Sep

7:20 a.m.

...

But, my main question is about the DMQ on two Kamailio nodes and what happens in case one of them reloads. Are the dialogs and useloc synced automatically on reload? Is there a template config to read about this?

Hi, unless there are new development on version 5.5 that I am not aware, on version 5.4, the dialogs do not sync automatically, so you need to save them on DB and read from DB on startup ( https://kamailio.org/docs/modules/5.4.x/modules/dialog.html#dialog.p.db_ski…). The usrloc will sync without the need of a DB https://kamailio.org/docs/modules/5.4.x/modules/dmq_usrloc.html#usrloc_dmq.… On Tue, 14 Sept 2021 at 22:44, Daniel-Constantin Mierla <miconda(a)gmail.com> wrote:

...

Hello, for the records, there is a minimal config example in the repo: * https://github.com/kamailio/kamailio/blob/master/misc/examples/mixed/kamail… Maybe it is useful for a starting point, although I think it targets use of UDP. Cheers, Daniel On 13.09.21 08:46, Markus Monka wrote: Hi, we did some testing with ipvs but unfortunately where not been able to pursue it further. Today we use NAPTR/SRV Records for balancing to several TCP Loadbalancers. Best Regards Markus On Mon, Sep 13, 2021 at 8:19 AM Henning Westerholt <hw(a)skalatan.de> wrote:

Hello, I would suggest having a look at the presentation from Armen, and probably others from past KamailioWorld: https://www.youtube.com/c/KamailioWorld/search?query=anycast Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.com *From:* sr-users <sr-users-bounces(a)lists.kamailio.org> *On Behalf Of *Angelo Sipper *Sent:* Sunday, September 12, 2021 11:44 AM *To:* Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org> *Subject:* Re: [SR-Users] Best practice for Kamailio "cluster" front for many TLS connections Sorry Fred, I believe, my question was wrongly asked. The correct question would be, Is there a guide for Kamailio and Anycast that anyone could point me to read? But, my main question is about the DMQ on two Kamailio nodes and what happens in case one of them reloads. Are the dialogs and useloc synced automatically on reload? Is there a template config to read about this? Kind Regards, Angelo Στις Κυρ, 12 Σεπ 2021 στις 1:30 π.μ., ο/η Fred Posner <fred(a)palner.com> έγραψε: To be clear here, this is the kamailio list and you’ve been referencing opensips documentation. -- Fred (via mobile) Matrix: @fred:matrix.lod.com On Sep 11, 2021, at 5:46 PM, Angelo Sipper <sippro97(a)gmail.com> wrote: HI, Thanks for all the suggestions. I will look into glb-director and I will come back in case I need more help. As I understand for same DC and two Kamailio's on active/standby with keepalived is fine, at least for the load we are expecting now. Now one question on DMQ. Up today with the one only Kamailio we are using the dialog db_mode 1 to have all dialogs in db, in order not to loose the dialogs in case of reload. When we will have 2 Kamailio's with DMQ sync for all dialogs, in case of one Kamailios reloads it will get all active dialogs from the other Kamailio without the need to have the DB to handle this and also delay the system. Is this the correct approach? Last, do you know any updated doc for Anycast - Kamailio like the one here for the older version 2.4 ? https://blog.opensips.org/2018/03/21/full-anycast-support-in-opensips-2-4/ Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 11:03 μ.μ., ο/η Henning Westerholt < hw(a)skalatan.de> έγραψε: Hello Angelo, it is possible to use Kamailio with an anycast setup, there are two talks in the last years KamailioWorld conference about more details. But if we are only talking about several thousand clients, it’s not needed for a start. Its certainly possible to operate this just with one front-end Kamailio in an activate/passive setup, many people do this. E.g., look to this (rather old) performance tests, 1.000.000 contacts with TLS on one server http://sip-router.org/wiki/performance/v3.0-capacity Kamailio has no cluster module, you probably want to investigate the DMQ module which offers clustering capabilities. Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.com *From:* sr-users <sr-users-bounces(a)lists.kamailio.org> *On Behalf Of *Angelo Sipper *Sent:* Saturday, September 11, 2021 8:52 PM *To:* Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org> *Subject:* Re: [SR-Users] Best practice for Kamailio "cluster" front for many TLS connections Hi Fred, Thanks for the suggestions. I have been looking to all these presentations mostly from Rasvan but, he mostly suggesting clusterer module combined with anycast which I cannot locate on current version 5.x. Can you help me on what is the replacement for this? Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 6:04 μ.μ., ο/η Fred Posner <fred(a)palner.com> έγραψε: On 9/11/21 10:11 AM, Angelo Sipper wrote:

Hello, We are thinking to use kamailio to fully support our current voip

service.

[snip] What would be the best kamailio module and topology as solution to this requirement?

-- Dipl. Ing. Markus Monka - mmonka(a)sipgate.de Telefon: +49 (0)211-63 55 55-23 Telefax: +49 (0)211-63 55 55-22 sipgate GmbH - Gladbacher Str. 74 - 40219 Düsseldorf HRB Düsseldorf 39841 - Geschäftsführer: Thilo Salmon, Tim Mois Steuernummer: 106/5724/7147, Umsatzsteuer-ID: DE219349391 __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions * sr-users(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- www.linkedin.com/in/miconda __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions * sr-users(a)lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! Edit mailing list options or unsubscribe: * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

Angelo Sipper

4:43 p.m.

Thank you all for the suggestions!. I will look into them. As we have the UAs connecting with TLS I can understand that there are many issues to handle on an unexpected shutdown of a kamailio server and keep the TLS sessions alive. Στις Τετ, 15 Σεπ 2021 στις 8:22 π.μ., ο/η Patrick Wakano <pwakano(a)gmail.com> έγραψε:

...

But, my main question is about the DMQ on two Kamailio nodes and what

happens in case one of them reloads. Are the dialogs and useloc synced automatically on reload? Is there a template config to read about this?

Hello, I would suggest having a look at the presentation from Armen, and probably others from past KamailioWorld: https://www.youtube.com/c/KamailioWorld/search?query=anycast Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.com *From:* sr-users <sr-users-bounces(a)lists.kamailio.org> *On Behalf Of *Angelo Sipper *Sent:* Sunday, September 12, 2021 11:44 AM *To:* Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org> *Subject:* Re: [SR-Users] Best practice for Kamailio "cluster" front for many TLS connections Sorry Fred, I believe, my question was wrongly asked. The correct question would be, Is there a guide for Kamailio and Anycast that anyone could point me to read? But, my main question is about the DMQ on two Kamailio nodes and what happens in case one of them reloads. Are the dialogs and useloc synced automatically on reload? Is there a template config to read about this? Kind Regards, Angelo Στις Κυρ, 12 Σεπ 2021 στις 1:30 π.μ., ο/η Fred Posner <fred(a)palner.com> έγραψε: To be clear here, this is the kamailio list and you’ve been referencing opensips documentation. -- Fred (via mobile) Matrix: @fred:matrix.lod.com On Sep 11, 2021, at 5:46 PM, Angelo Sipper <sippro97(a)gmail.com> wrote: HI, Thanks for all the suggestions. I will look into glb-director and I will come back in case I need more help. As I understand for same DC and two Kamailio's on active/standby with keepalived is fine, at least for the load we are expecting now. Now one question on DMQ. Up today with the one only Kamailio we are using the dialog db_mode 1 to have all dialogs in db, in order not to loose the dialogs in case of reload. When we will have 2 Kamailio's with DMQ sync for all dialogs, in case of one Kamailios reloads it will get all active dialogs from the other Kamailio without the need to have the DB to handle this and also delay the system. Is this the correct approach? Last, do you know any updated doc for Anycast - Kamailio like the one here for the older version 2.4 ? https://blog.opensips.org/2018/03/21/full-anycast-support-in-opensips-2-4/ Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 11:03 μ.μ., ο/η Henning Westerholt < hw(a)skalatan.de> έγραψε: Hello Angelo, it is possible to use Kamailio with an anycast setup, there are two talks in the last years KamailioWorld conference about more details. But if we are only talking about several thousand clients, it’s not needed for a start. Its certainly possible to operate this just with one front-end Kamailio in an activate/passive setup, many people do this. E.g., look to this (rather old) performance tests, 1.000.000 contacts with TLS on one server http://sip-router.org/wiki/performance/v3.0-capacity Kamailio has no cluster module, you probably want to investigate the DMQ module which offers clustering capabilities. Cheers, Henning -- Henning Westerholt – https://skalatan.de/blog/ Kamailio services – https://gilawa.com *From:* sr-users <sr-users-bounces(a)lists.kamailio.org> *On Behalf Of *Angelo Sipper *Sent:* Saturday, September 11, 2021 8:52 PM *To:* Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org> *Subject:* Re: [SR-Users] Best practice for Kamailio "cluster" front for many TLS connections Hi Fred, Thanks for the suggestions. I have been looking to all these presentations mostly from Rasvan but, he mostly suggesting clusterer module combined with anycast which I cannot locate on current version 5.x. Can you help me on what is the replacement for this? Kind Regards, Angelo Στις Σάβ, 11 Σεπ 2021 στις 6:04 μ.μ., ο/η Fred Posner <fred(a)palner.com> έγραψε: On 9/11/21 10:11 AM, Angelo Sipper wrote:

Hello, We are thinking to use kamailio to fully support our current voip

service.

[snip] What would be the best kamailio module and topology as solution to this requirement?

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participants (7)

Angelo Sipper
Daniel-Constantin Mierla
Fred Posner
Henning Westerholt
Markus Monka
Patrick Wakano
Sergey Safarov