Re: [Serusers] sip load balancing

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Re: [Serusers] Advice needed

a c

10 May 2005 10 May '05

8:01 p.m.

hello Iqbal, just need the SIP messages load balance across servers. No RTP. thank you ac --- Iqbal <iqbal(a)gigo.co.uk> wrote:

...

mediaproxy can do it using dns. Am assuming you want the rtp stream load balanced, if its the sip messages, search throuygh the archives there is along discussion bout howto use LVS and load balancing....in short doesnt seem to work, cause SIP uses udp Iqbal a c wrote:

hello, got a question on SER. Could SER do load balance across SIP servers? for example: SIP carrier --> SER --> Media/App Servers

{multiple}

Are there any Configuration examples I can look at? thank you ac __________________________________ Yahoo! Mail Mobile Take Yahoo! Mail with you! Check email on your

mobile phone.

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Iqbal

10 May 10 May

8:10 p.m.

New subject: [Serusers] sip load balancing

Hi You will have to search the archives, as I said there was a discussion on using LVS, not sure if anyone has got a working solution, I would like to test one also :-) Iqbal a c wrote:

...

hello Iqbal, just need the SIP messages load balance across servers. No RTP. thank you ac --- Iqbal <iqbal(a)gigo.co.uk> wrote:

hello, got a question on SER. Could SER do load balance across SIP servers? for example: SIP carrier --> SER --> Media/App Servers

{multiple}

Are there any Configuration examples I can look at? thank you ac __________________________________ Yahoo! Mail Mobile Take Yahoo! Mail with you! Check email on your

mobile phone. >http://mobile.yahoo.com/learn/mail > >_______________________________________________ >Serusers mailing list >serusers(a)lists.iptel.org >http://lists.iptel.org/mailman/listinfo/serusers > >. > > > > >

__________________________________ Do you Yahoo!? Yahoo! Mail - Find what you need with new enhanced search. http://info.mail.yahoo.com/mail_250 .

Juha Heinanen

8:29 p.m.

New subject: [Serusers] sip load balancing

a c writes:

...

just need the SIP messages load balance across servers. No RTP.

see the archives during past couple of months. in summary, load balancing can be done with proxies alone, if your clients are not behind nats, but requires some kind of sip aware load balancers to front end the proxies if you need to support nated clients. -- juha

Karunakar Chemudugunta

11:03 p.m.

New subject: [Serusers] sip load balancing

I have a same problem as explained below. PSTN ---> VOIP GATEWAY(Cisco AS5400) --> SER-------> Multiple media gateways. Planning to depoy media servers which can able to running IVR fuctionality and would like to use SER in front of lot of media gateways. Each media gateway, might be running lot of user agents which are able to serve IVR fuctionality. all these user agents are going to register with SER with <media server hostname_channel number> format as user name. Eg. mediaserver1_ch1(a)mydomain.com Otherside, SER will receive call from PSTN through VOIP Gateway with multiple DIDs and these calls need to route calls to media gateways ( typical hosted call center environment ) I have tried with lot of possibities using ser.cfg file and did n't find way to route calls to media gateways. Just I am thinking, it would be possible to write another module or part of userloc module, which gives a routing fuctionality like cyclic or rotary senarios which helps load balancing and easy maintenance of media servers. Possible solution ------------------------------ Lets assume, if we have resource file called resource.cfg which has all did and resource mapping. All resource names are substring of usernames of useragents in media servers. resource.cfg ########################################## resource:resource1 = mediaserver1,mediaserver2,mediaserver3,mediaserver4,mediaserver5 did:8005551212 = cyclic:resource1 did:8005551213 = rotary:resource1 ########################################## every invite message need to call fuction like lookup_route() instead of lookup() in ser.cfg this fuction instenally calls routing module, searches for did in resource file and get corresponding resource type( rotary or cylic), resource name. search each resource member in useloc using function get_urecord and it if avaialbe and route calls to that particar user. Summary: 1. ser receives call from PSTN 2. Finds resource name for DID 3. Find resource string depend of type of routing from resorce list. 4. Serach usrloc database with resource string as sub string of usernames in userloc database. 5. Forward call to that particular media gateway. Welcome for any comments and thoughts ? Thanks, Karun Chemudugunta On 5/10/05, a c <lra101(a)yahoo.com> wrote:

...

hello Iqbal, just need the SIP messages load balance across servers. No RTP. thank you ac --- Iqbal <iqbal(a)gigo.co.uk> wrote:

hello, got a question on SER. Could SER do load balance across SIP servers? for example: SIP carrier --> SER --> Media/App Servers

{multiple}

Are there any Configuration examples I can look at? thank you ac __________________________________ Yahoo! Mail Mobile Take Yahoo! Mail with you! Check email on your

mobile phone.

http://mobile.yahoo.com/learn/mail _______________________________________________ Serusers mailing list serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers .

__________________________________ Do you Yahoo!? Yahoo! Mail - Find what you need with new enhanced search. http://info.mail.yahoo.com/mail_250 _______________________________________________ Serusers mailing list serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers

a c

11:55 p.m.

New subject: [Serusers] sip load balancing

hello Karun, This sounds like a great idea. We also don't need to depend on DNS servers. Seems like lot of people are having similar issues. It would also be nice if the DID field could also take regular expressions {i.e. 800.*/etc}.How hard is this to implement? ac --- Karunakar Chemudugunta <voicexml(a)gmail.com> wrote:

...

mediaserver1,mediaserver2,mediaserver3,mediaserver4,mediaserver5

...

did:8005551212 = cyclic:resource1 did:8005551213 = rotary:resource1 ########################################## every invite message need to call fuction like lookup_route() instead of lookup() in ser.cfg this fuction instenally calls routing module, searches for did in resource file and get corresponding resource type( rotary or cylic), resource name. search each resource member in useloc using function get_urecord and it if avaialbe and route calls to that particar user. Summary: 1. ser receives call from PSTN 2. Finds resource name for DID 3. Find resource string depend of type of routing from resorce list. 4. Serach usrloc database with resource string as sub string of usernames in userloc database. 5. Forward call to that particular media gateway. Welcome for any comments and thoughts ? Thanks, Karun Chemudugunta On 5/10/05, a c <lra101(a)yahoo.com> wrote:

hello Iqbal, just need the SIP messages load balance across servers. No RTP. thank you ac --- Iqbal <iqbal(a)gigo.co.uk> wrote: > mediaproxy can do it using dns. Am assuming you

want

> the rtp stream load > balanced, if its the sip messages, search

throuygh

> the archives there is > along discussion bout howto use LVS and load > balancing....in short > doesnt seem to work, cause SIP uses udp > > Iqbal > > a c wrote: > > >hello, > > > > got a question on SER. Could SER do load

balance

> >across SIP servers? > > > >for example: > > > >SIP carrier --> SER --> Media/App Servers > {multiple} > > > >Are there any Configuration examples I can look

at?

thank you ac __________________________________ Yahoo! Mail Mobile Take Yahoo! Mail with you! Check email on your

mobile phone.

http://mobile.yahoo.com/learn/mail _______________________________________________ Serusers mailing list serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers .

__________________________________ Do you Yahoo!? Yahoo! Mail - Find what you need with new enhanced

search.

http://info.mail.yahoo.com/mail_250 _______________________________________________ Serusers mailing list serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers

Yahoo! Mail Stay connected, organized, and protected. Take the tour: http://tour.mail.yahoo.com/mailtour.html

Greger V. Teigre

18 May 18 May

8:54 a.m.

New subject: [Serusers] sip load balancing

I assume you have looked at dispatcher module. Without completely understanding what you are trying to accomplish: Why can't use that module? g-) Karunakar Chemudugunta wrote:

...

hello Iqbal, just need the SIP messages load balance across servers. No RTP. thank you ac --- Iqbal <iqbal(a)gigo.co.uk> wrote:

hello, got a question on SER. Could SER do load balance across SIP servers? for example: SIP carrier --> SER --> Media/App Servers

{multiple}

Are there any Configuration examples I can look at? thank you ac __________________________________ Yahoo! Mail Mobile Take Yahoo! Mail with you! Check email on your

mobile phone.

http://mobile.yahoo.com/learn/mail _______________________________________________ Serusers mailing list serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers .

_______________________________________________ Serusers mailing list serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers

a c

7:35 p.m.

New subject: [Serusers] sip load balancing

I got the dispatch module working. The only thing that was of concern was that it does not failover to another server on the dispatcher list if one of the servers fail. So I need to have a dedicated backup server {failure route} just to field these calls. I guess this cannot be done since the dispatcher is a stateless module {like Andrei mentioned} alex --- "Greger V. Teigre" <greger(a)teigre.com> wrote:

...

I assume you have looked at dispatcher module. Without completely understanding what you are trying to accomplish: Why can't use that module? g-) Karunakar Chemudugunta wrote:

I have a same problem as explained below. PSTN ---> VOIP GATEWAY(Cisco AS5400) -->

SER-------> Multiple media

gateways. Planning to depoy media servers which can able to

running IVR

fuctionality and would like to use SER in front of

lot of media

gateways. Each media gateway, might be running lot of user

agents which are able

to serve IVR fuctionality. all these user agents

are going to register

with SER with <media server hostname_channel

number> format as user

name. Eg. mediaserver1_ch1(a)mydomain.com Otherside, SER will receive call from PSTN through

VOIP Gateway with

multiple DIDs and these calls need to route calls

to media gateways (

typical hosted call center environment ) I have tried with lot of possibities using ser.cfg

file and did n't

find way to route calls to media gateways. Just I am thinking, it would be possible to write

another module or

part of userloc module, which gives a routing

fuctionality like cyclic

or rotary senarios which helps load balancing and

easy maintenance of

media servers. Possible solution ------------------------------ Lets assume, if we have resource file called

resource.cfg which has

all did and resource mapping. All resource names

are substring of

usernames of useragents in media servers. resource.cfg ########################################## resource:resource1 =

mediaserver1,mediaserver2,mediaserver3,mediaserver4,mediaserver5

...

did:8005551212 = cyclic:resource1 did:8005551213 = rotary:resource1 ########################################## every invite message need to call fuction like

lookup_route() instead

of lookup() in ser.cfg this fuction instenally calls routing module,

searches for did in

resource file and get corresponding resource type(

rotary or cylic),

resource name. search each resource member in useloc using

function get_urecord and

it if avaialbe and route calls to that particar

user.

Summary: 1. ser receives call from PSTN 2. Finds resource name for DID 3. Find resource string depend of type of routing

from resorce list.

4. Serach usrloc database with resource string as

sub string of

usernames in userloc database. 5. Forward call to that particular media gateway. Welcome for any comments and thoughts ? Thanks, Karun Chemudugunta On 5/10/05, a c <lra101(a)yahoo.com> wrote: > hello Iqbal, > > just need the SIP messages load balance across > servers. No RTP. > > thank you > ac > > --- Iqbal <iqbal(a)gigo.co.uk> wrote: >> mediaproxy can do it using dns. Am assuming you

want

>> the rtp stream load >> balanced, if its the sip messages, search

throuygh

>> the archives there is >> along discussion bout howto use LVS and load >> balancing....in short >> doesnt seem to work, cause SIP uses udp >> >> Iqbal >> >> a c wrote: >> >>> hello, >>> >>> got a question on SER. Could SER do load

balance

>>> across SIP servers? >>> >>> for example: >>> >>> SIP carrier --> SER --> Media/App Servers >> {multiple} >>> >>> Are there any Configuration examples I can look

at?

>>> >>> thank you >>> ac >>> >>> >>> >>> __________________________________ >>> Yahoo! Mail Mobile >>> Take Yahoo! Mail with you! Check email on your >> mobile phone. >>> http://mobile.yahoo.com/learn/mail >>> >>> _______________________________________________ >>> Serusers mailing list >>> serusers(a)lists.iptel.org >>> http://lists.iptel.org/mailman/listinfo/serusers >>> >>> . >>> >>> >>> >> > > __________________________________ > Do you Yahoo!? > Yahoo! Mail - Find what you need with new

enhanced search.

http://info.mail.yahoo.com/mail_250 _______________________________________________ Serusers mailing list serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers

_______________________________________________ Serusers mailing list serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers

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Greger V. Teigre

19 May 19 May

11:22 a.m.

New subject: [Serusers] sip load balancing

I see. Have you looked at what the lcr module can do? You could possibly create patterns for different gateways and thus create a "static" load balancing with multiple GWs that can be picked up in failure route. If not, maybe extending dispatcher could be an idea? It's generally better to build on existing functionality in existing modules than to introduce another one. Your module would then probably not be taken into CVS... g-) a c wrote:

...

I assume you have looked at dispatcher module. Without completely understanding what you are trying to accomplish: Why can't use that module? g-) Karunakar Chemudugunta wrote:

I have a same problem as explained below. PSTN ---> VOIP GATEWAY(Cisco AS5400) -->

SER-------> Multiple media

gateways. Planning to depoy media servers which can able to

running IVR

fuctionality and would like to use SER in front of

lot of media

gateways. Each media gateway, might be running lot of user

agents which are able

to serve IVR fuctionality. all these user agents

are going to register

with SER with <media server hostname_channel

number> format as user

name. Eg. mediaserver1_ch1(a)mydomain.com Otherside, SER will receive call from PSTN through

VOIP Gateway with

multiple DIDs and these calls need to route calls

to media gateways (

typical hosted call center environment ) I have tried with lot of possibities using ser.cfg

file and did n't

find way to route calls to media gateways. Just I am thinking, it would be possible to write

another module or

part of userloc module, which gives a routing

fuctionality like cyclic

or rotary senarios which helps load balancing and

easy maintenance of

media servers. Possible solution ------------------------------ Lets assume, if we have resource file called

resource.cfg which has

all did and resource mapping. All resource names

are substring of

usernames of useragents in media servers. resource.cfg ########################################## resource:resource1 =

mediaserver1,mediaserver2,mediaserver3,mediaserver4,mediaserver5

searches for did in

resource file and get corresponding resource type(

rotary or cylic),

resource name. search each resource member in useloc using

function get_urecord and

it if avaialbe and route calls to that particar

user.

Summary: 1. ser receives call from PSTN 2. Finds resource name for DID 3. Find resource string depend of type of routing

from resorce list.

4. Serach usrloc database with resource string as

sub string of

want

>> the rtp stream load >> balanced, if its the sip messages, search

throuygh

balance

>>> across SIP servers? >>> >>> for example: >>> >>> SIP carrier --> SER --> Media/App Servers >> {multiple} >>> >>> Are there any Configuration examples I can look

at?

enhanced search.

http://info.mail.yahoo.com/mail_250 _______________________________________________ Serusers mailing list serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers

_______________________________________________ Serusers mailing list serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers

__________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

a c

20 May 20 May

12:09 a.m.

New subject: [Serusers] sip load balancing

I haven't looked at lcr yet. Seems like a little more involved. Not sure how, but it seems logical to extend dispatcher. How big of a change would this be? I will also readup on lcr. thank you ac --- "Greger V. Teigre" <greger(a)teigre.com> wrote:

...

I got the dispatch module working. The only thing

that

was of concern was that it does not failover to another server on the dispatcher list if one of

the

servers fail. So I need to have a dedicated backup server {failure route} just to field these calls.

guess this cannot be done since the dispatcher is

stateless module {like Andrei mentioned} alex --- "Greger V. Teigre" <greger(a)teigre.com> wrote: > I assume you have looked at dispatcher module. > Without completely > understanding what you are trying to accomplish:

Why

> can't use that module? > g-) > > Karunakar Chemudugunta wrote: >> I have a same problem as explained below. >> >> PSTN ---> VOIP GATEWAY(Cisco AS5400) --> > SER-------> Multiple media >> gateways. >> >> Planning to depoy media servers which can able

> running IVR >> fuctionality and would like to use SER in front

> lot of media >> gateways. >> >> Each media gateway, might be running lot of user > agents which are able >> to serve IVR fuctionality. all these user agents > are going to register >> with SER with <media server hostname_channel > number> format as user >> name. Eg. mediaserver1_ch1(a)mydomain.com >> >> Otherside, SER will receive call from PSTN

through

> VOIP Gateway with >> multiple DIDs and these calls need to route

calls

> to media gateways ( >> typical hosted call center environment ) >> >> >> I have tried with lot of possibities using

ser.cfg

> file and did n't >> find way to route calls to media gateways. >> >> Just I am thinking, it would be possible to

write

> another module or >> part of userloc module, which gives a routing > fuctionality like cyclic >> or rotary senarios which helps load balancing

and

easy maintenance of

media servers. Possible solution ------------------------------ Lets assume, if we have resource file called

resource.cfg which has

all did and resource mapping. All resource names

are substring of

usernames of useragents in media servers. resource.cfg ########################################## resource:resource1 =

mediaserver1,mediaserver2,mediaserver3,mediaserver4,mediaserver5

...

>> >> did:8005551212 = cyclic:resource1 >> did:8005551213 = rotary:resource1 >> >> ########################################## >> >> every invite message need to call fuction like

lookup_route()

>> instead of lookup() in ser.cfg >> >> >> this fuction instenally calls routing module, > searches for did in >> resource file and get corresponding resource

type(

> rotary or cylic), >> resource name. >> >> search each resource member in useloc using > function get_urecord and >> it if avaialbe and route calls to that particar > user. >> >> Summary: >> >> 1. ser receives call from PSTN >> 2. Finds resource name for DID >> 3. Find resource string depend of type of

routing

> from resorce list. >> 4. Serach usrloc database with resource string

> sub string of >> usernames in userloc database. >> 5. Forward call to that particular media

gateway.

>> >> >> Welcome for any comments and thoughts ? >> >> Thanks, >> Karun Chemudugunta >> >> >> >> >> >> On 5/10/05, a c <lra101(a)yahoo.com> wrote: >>> hello Iqbal, >>> >>> just need the SIP messages load balance across >>> servers. No RTP. >>> >>> thank you >>> ac >>> >>> --- Iqbal <iqbal(a)gigo.co.uk> wrote: >>>> mediaproxy can do it using dns. Am assuming

you

> want >>>> the rtp stream load >>>> balanced, if its the sip messages, search > throuygh >>>> the archives there is >>>> along discussion bout howto use LVS and load >>>> balancing....in short >>>> doesnt seem to work, cause SIP uses udp >>>> >>>> Iqbal >>>> >>>> a c wrote: >>>> >>>>> hello, >>>>> >>>>> got a question on SER. Could SER do load > balance >>>>> across SIP servers? >>>>> >>>>> for example: >>>>> >>>>> SIP carrier --> SER --> Media/App Servers >>>> {multiple} >>>>> >>>>> Are there any Configuration examples I can

look

> at? >>>>> >>>>> thank you >>>>> ac >>>>> >>>>> >>>>> >>>>> __________________________________ >>>>> Yahoo! Mail Mobile >>>>> Take Yahoo! Mail with you! Check email on

your

>>>> mobile phone. >>>>> http://mobile.yahoo.com/learn/mail >>>>> >>>>>

_______________________________________________

=== message truncated === __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

a c

21 May 21 May

12:44 a.m.

New subject: [Serusers] logging

Greg Fausak

12:50 a.m.

New subject: [Serusers] logging

i don't know about stdout....but xlog can get to the src_ip I believe. -g On 5/20/05, a c <lra101(a)yahoo.com> wrote:

...

this might be a stupid question :-( could someone tell me how to log the src ip address to stdout? log(1,??); thank you ac Yahoo! Mail Stay connected, organized, and protected. Take the tour: http://tour.mail.yahoo.com/mailtour.html _______________________________________________ Serusers mailing list serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers

-- Greg Fausak greg(a)thursday.com

Iqbal

2:32 a.m.

New subject: [Serusers] logging

xlog might be better On 5/20/2005, "a c" <lra101(a)yahoo.com> wrote:

...

a cairo

23 May 23 May

12:13 a.m.

New subject: [Serusers] logging on a file ser.log!

How to log in a file ser.log ?

Daniel-Constantin Mierla

12:38 p.m.

New subject: [Serusers] logging on a file ser.log!

See http://www.voice-system.ro/docs/ser-syslog/ar01s06.html Daniel On 05/23/05 00:13, a cairo wrote:

...

How to log in a file ser.log ? _______________________________________________ Serusers mailing list serusers(a)lists.iptel.org http://lists.iptel.org/mailman/listinfo/serusers

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13 comments

8 participants

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participants (8)

a c
a cairo
Daniel-Constantin Mierla
Greg Fausak
Greger V. Teigre
Iqbal
Juha Heinanen
Karunakar Chemudugunta