18 Oct
2012
18 Oct
'12
3:18 p.m.
Dear List,
I'd like to get help regarding my case.
I have the following script where many thanks to Daniel has helped me in
if (is_method("INVITE"))
{
if (!load_gws(1, $rU, $fu)) {
sl_send_reply("502", "Unable To lOad GatEwAyS");
exit;}
if(!next_gw()){
sl_send_reply("503", "Unable To fInD a gateWaY");
exit;}
while(next_gw()){
km_append_branch(); }
sl_send_reply("302","Moved Temporary");
exit;
}
The problem am facing is that the call is rerouting from the first gateway
to the next gateway successfully when I have two gateways. BUT when I have
three gateways, and the first two gateways are off, the call is not rerouted
to the third gateway. It keeps hitting the seconds gateway and gives request
time out at the end
Why is that?
Thanks in advance,
F Chahrour
19 Oct
19 Oct
2:12 p.m.
Dears,
I've changed the script to the following:
if (is_method("INVITE"))
{
if (!load_gws(1, $rU, $fu)) {
sl_send_reply("502", "Unable To lOad GatEwAyS");
exit; }
else while(next_gw()) {
km_append_branch(); }
sl_send_reply("300","Multiple Choices");
exit;
}
In Lcr_gw table I have:
1, 1, 'S1', '192.168.111.195', '192.168.111.195', 5060,
'', 1, 1, 0, '0', 0,
0, '111'
2, 1, 'S2', '192.168.111.11', '192.168.111.11', 5060, '',
1, 1, 0, '0', 0,
0, ''
3, 1, 'S3', '192.168.111.19', '192.168.111.19', 5060, '',
1, 1, 0, '0', 0,
0, ''
4, 1, 'S4', '192.168.111.17', '192.168.111.17', 5060, '',
1, 1, 0, '0', 0,
0, ''
5, 1, 'S5', '192.168.111.18', '192.168.111.18', 5060, '',
1, 1, 0, '0', 0,
0, ''
I can see in the sip trace that contacts redirected correctly but starting
from the last gateway(192.168.111.18) then to 192.168.111.195, etc.;
SIP/2.0 300 Multiple Choices
Via: SIP/2.0/UDP 192.168.111.124:5060;branch=z9hG4bKma7723109gaqmv94j2g1.1
From: "test1" <sip:192.168.52.139>;tag=7076feef33
To:
<sip:333961300007@192.168.111.123>;tag=b27e1a1d33761e85846fc98f5f3a7e58.5998
Call-ID: 3C8C90D4D2CC44E9AABE3171F0DA0A810xc0a8348b
CSeq: 1 INVITE
Contact: sip:333961300007@192.168.111.18,
sip:111333961300007@192.168.111.195, sip:333961300007@192.168.111.11,
sip:333961300007@192.168.111.19, sip:333961300007@192.168.111.17,
sip:333961300007@192.168.111.18
Server: kamailio (3.2.2 (i386/linux))
Content-Length: 0
Please help me to know what can I do so that Contacts in the redirect starts
from my first gateway?
Thanks,
F Chahrour
From: sr-users-bounces(a)lists.sip-router.org
[mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Fatima
Chahrour~Vanrise Support
Sent: Thursday, October 18, 2012 3:19 PM
To: 'SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users
Mailing List'
Cc: sr-users(a)lists.sip-router.org
Subject: [SR-Users] Kamailio- Redirect message 300 with LCR reroute
Dear List,
I'd like to get help regarding my case.
I have the following script where many thanks to Daniel has helped me in
if (is_method("INVITE"))
{
if (!load_gws(1, $rU, $fu)) {
sl_send_reply("502", "Unable To lOad GatEwAyS");
exit;}
if(!next_gw()){
sl_send_reply("503", "Unable To fInD a gateWaY");
exit;}
while(next_gw()){
km_append_branch(); }
sl_send_reply("302","Moved Temporary");
exit;
}
The problem am facing is that the call is rerouting from the first gateway
to the next gateway successfully when I have two gateways. BUT when I have
three gateways, and the first two gateways are off, the call is not rerouted
to the third gateway. It keeps hitting the seconds gateway and gives request
time out at the end
Why is that?
Thanks in advance,
F Chahrour
30 Oct
30 Oct
11:12 a.m.
Dears,
Any helping idea regarding the below?!
Thanks in advance.
From: sr-users-bounces(a)lists.sip-router.org
[mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Fatima
Chahrour~Vanrise Support
Sent: Friday, October 19, 2012 2:12 PM
To: 'SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users
Mailing List'
Subject: Re: [SR-Users] Kamailio- Redirect message 300 with LCR reroute
Dears,
I've changed the script to the following:
if (is_method("INVITE"))
{
if (!load_gws(1, $rU, $fu)) {
sl_send_reply("502", "Unable To lOad GatEwAyS");
exit; }
else while(next_gw()) {
km_append_branch(); }
sl_send_reply("300","Multiple Choices");
exit;
}
In Lcr_gw table I have:
1, 1, 'S1', '192.168.111.195', '192.168.111.195', 5060,
'', 1, 1, 0, '0', 0,
0, '111'
2, 1, 'S2', '192.168.111.11', '192.168.111.11', 5060, '',
1, 1, 0, '0', 0,
0, ''
3, 1, 'S3', '192.168.111.19', '192.168.111.19', 5060, '',
1, 1, 0, '0', 0,
0, ''
4, 1, 'S4', '192.168.111.17', '192.168.111.17', 5060, '',
1, 1, 0, '0', 0,
0, ''
5, 1, 'S5', '192.168.111.18', '192.168.111.18', 5060, '',
1, 1, 0, '0', 0,
0, ''
I can see in the sip trace that contacts redirected correctly but starting
from the last gateway(192.168.111.18) then to 192.168.111.195, etc.;
SIP/2.0 300 Multiple Choices
Via: SIP/2.0/UDP 192.168.111.124:5060;branch=z9hG4bKma7723109gaqmv94j2g1.1
From: "test1" <sip:192.168.52.139>;tag=7076feef33
To:
<sip:333961300007@192.168.111.123>;tag=b27e1a1d33761e85846fc98f5f3a7e58.5998
Call-ID: 3C8C90D4D2CC44E9AABE3171F0DA0A810xc0a8348b
CSeq: 1 INVITE
Contact: sip:333961300007@192.168.111.18,
sip:111333961300007@192.168.111.195, sip:333961300007@192.168.111.11,
sip:333961300007@192.168.111.19, sip:333961300007@192.168.111.17,
sip:333961300007@192.168.111.18
Server: kamailio (3.2.2 (i386/linux))
Content-Length: 0
Please help me to know what can I do so that Contacts in the redirect starts
from my first gateway not the last one?
Thanks,
F Chahrour
From: sr-users-bounces(a)lists.sip-router.org
[mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Fatima
Chahrour~Vanrise Support
Sent: Thursday, October 18, 2012 3:19 PM
To: 'SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users
Mailing List'
Cc: sr-users(a)lists.sip-router.org
Subject: [SR-Users] Kamailio- Redirect message 300 with LCR reroute
Dear List,
I'd like to get help regarding my case.
I have the following script where many thanks to Daniel has helped me in
if (is_method("INVITE"))
{
if (!load_gws(1, $rU, $fu)) {
sl_send_reply("502", "Unable To lOad GatEwAyS");
exit;}
if(!next_gw()){
sl_send_reply("503", "Unable To fInD a gateWaY");
exit;}
while(next_gw()){
km_append_branch(); }
sl_send_reply("302","Moved Temporary");
exit;
}
The problem am facing is that the call is rerouting from the first gateway
to the next gateway successfully when I have two gateways. BUT when I have
three gateways, and the first two gateways are off, the call is not rerouted
to the third gateway. It keeps hitting the seconds gateway and gives request
time out at the end
Why is that?
Thanks in advance,
F Chahrour
12:24 p.m.
Fatima Chahrour~Vanrise Support writes:
I can see in the sip trace that contacts redirected
correctly but starting
from the last gateway(192.168.111.18) then to 192.168.111.195, etc.;
Please help me to know what can I do so that Contacts in the redirect starts
from my first gateway not the last one?
you can adjust the order by lcr_rule_target priority field.
-- juha
2:40 p.m.
Hi Juha,
The priority field is already set correctly in lcr_rule_target but though
the call is starting by last gw instead of the first.
Herby more details:
In Lcr_gw table I have:
1, 1, 'S1', '192.168.111.195', '192.168.111.195', 5060,
'', 1, 1, 0, '0', 0,
0, '111'
2, 1, 'S2', '192.168.111.11', '192.168.111.11', 5060, '',
1, 1, 0, '0', 0,
0, ''
3, 1, 'S3', '192.168.111.19', '192.168.111.19', 5060, '',
1, 1, 0, '0', 0,
0, ''
4, 1, 'S4', '192.168.111.17', '192.168.111.17', 5060, '',
1, 1, 0, '0', 0,
0, ''
5, 1, 'S5', '192.168.111.18', '192.168.111.18', 5060, '',
1, 1, 0, '0', 0,
0, ''
In lcr_rule_target:
1, 1, 1, 1, 1, 1
2, 1, 1, 2, 2, 1
3, 1, 1, 3, 3, 1
4, 1, 1, 4, 4, 1
5, 1, 1, 5, 5, 1
Thanks,
F Chahrour
-----Original Message-----
From: sr-users-bounces(a)lists.sip-router.org
[mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Juha Heinanen
Sent: Tuesday, October 30, 2012 12:24 PM
To: SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users
Mailing List
Subject: Re: [SR-Users] Kamailio- Redirect message 300 with LCR reroute
Fatima Chahrour~Vanrise Support writes:
I can see in the sip trace that contacts redirected
correctly but starting
from the last gateway(192.168.111.18) then to 192.168.111.195, etc.;
Please help me to know what can I do so that Contacts in the redirect
starts
from my first gateway not the last one?
you can adjust the order by lcr_rule_target priority field.
-- juha
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
8:13 p.m.
Hi Juha,
Isn't putting priority 1 for gateway 1 means take this gateway of id 1 as
first choice in routing?
I have sent you my tables' content to pinpoint my mistake if it exist in the
table and not in the script, are they wrong?
Do you see that my routing script is fine?
Thanks,
F Chahrour
-----Original Message-----
From: sr-users-bounces(a)lists.sip-router.org
[mailto:sr-users-bounces@lists.sip-router.org] On Behalf Of Juha Heinanen
Sent: Tuesday, October 30, 2012 4:36 PM
To: SIP Router - Kamailio (OpenSER) and SIP Express Router (SER) - Users
Mailing List
Subject: Re: [SR-Users] Kamailio- Redirect message 300 with LCR reroute
Fatima Chahrour~Vanrise Support writes:
The priority field is already set correctly in
lcr_rule_target but though
the call is starting by last gw instead of the first.
depends how you define "correct". set priorities so that you get what
you want.
-- juha
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
8:21 p.m.
Fatima Chahrour~Vanrise Support writes:
Isn't putting priority 1 for gateway 1 means take
this gateway of id 1 as
first choice in routing?
smaller priority value means higher priority. but if i remember
correctly, in your script you used append_branch, which may be appending
each new branch in front of the previous one. if so, the priority order
that next_gw() function returns the gateways, get reversed.
-- juha
21 Nov
21 Nov
6:38 a.m.
Hi
We are trying to set up route advance for lcr in our kamailio config so that
when 1 gateway fails the next one is attempted.
Seems like we are tackling the same issue. Did you ever find a satisfactory
way to set this up so they run in the right order?
Thanks very much in advance.
All the best
Will Ferrer
--
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http://sip-router.1086192.n5.nabble.com/Kamailio-Redirect-message-300-with-…
Sent from the Users mailing list archive at Nabble.com.
7:14 a.m.
willf1976 writes:
We are trying to set up route advance for lcr in our
kamailio config so that
when 1 gateway fails the next one is attempted.
Seems like we are tackling the same issue. Did you ever find a satisfactory
way to set that up so they run in the right order?
if you are using lcr module, in lcr_rule_target column you set priority
field value according to your needs. then first next_gw() call will
give you the gw pointed to by larger priority value rule target and
second with smaller one.
-- juha
10:14 p.m.
Hi Juha
Thank you so much for the write back.
So I take it then that the method described in this thread will work for
making fall back routes for lcr that will run in the order of their
priority, instead of in reverse order as some folks were saying in the
thread?
I also am planning on switching to using append_branch instead of
km_append_branch -- I thought I would mention this in case there was some
reason that km_append_branch is being used instead. So in the end my script
would look something much like this:
if (is_method("INVITE"))
{
if (!load_gws(1, $rU, $fu)) {
sl_send_reply("502", "Unable to load gateways");
exit;}
if(!next_gw()){
sl_send_reply("503", "Unable To find a gateway");
exit;}
while(next_gw()){
append_branch(); }
sl_send_reply("302","Moved temporary");
exit;
}
I greatly appreciate the assistance and hope this message finds you well.
All the best.
Will Ferrer
--
View this message in context:
http://sip-router.1086192.n5.nabble.com/Kamailio-Redirect-message-300-with-…
Sent from the Users mailing list archive at Nabble.com.
22 Nov
22 Nov
4:57 a.m.
willf1976 writes:
So I take it then that the method described in this
thread will work for
making fall back routes for lcr that will run in the order of their
priority, instead of in reverse order as some folks were saying in the
thread?
read what lcr readme tells about priority. if it does not work as
described, file a bug report.
I also am planning on switching to using append_branch
instead of
km_append_branch -- I thought I would mention this in case there was some
reason that km_append_branch is being used instead. So in the end my script
would look something much like this:
if (is_method("INVITE"))
{
if (!load_gws(1, $rU, $fu)) {
sl_send_reply("502", "Unable to load gateways");
exit;}
if(!next_gw()){
sl_send_reply("503", "Unable To find a gateway");
exit;}
while(next_gw()){
append_branch(); }
sl_send_reply("302","Moved temporary");
exit;
}
you should call append_branch() after next_gw(). also, the above calls
next_gw() twice. at some point you should call t_relay() to send the
message.
-- juha
6:53 a.m.
Hi Juha
Thanks so much for the response.
The method I posted was a slightly modified version of the method already
posted in this thread.
What I believe the script is meant to do is as follows:
1) load gateways as per usual:
if (!load_gws(1, $rU, $fu)) {
sl_send_reply("502", "Unable to load gateways");
exit;}
2) Rewrite the current request uri to the first gateway or return an error
if no gateways were found
if(!next_gw()){
sl_send_reply("503", "Unable To find a gateway");
exit;}
3) Add all the other gateways that were found as additional end points to be
tried after the first
while(next_gw()){
append_branch(); }
The reason that I thought it might reverse the order of the gateways was
because of something you said previously in the thread in response to the
original poster:
"
smaller priority value means higher priority. but if i remember correctly,
in your script you used append_branch, which may be appending each new
branch in front of the previous one. if so, the priority order that
next_gw() function returns the gateways, get reversed.
"
No one responded to your last post in the thread so I wasn't sure if it was
determined if this method would reverse the order or not.
Thinking over this script a bit more I believe it is flawed or at the very
least an incomplete example. It would cause all the branches to be contacted
at once instead of in sequence. What really seems like it's needed here is
something like the serial forking example found here:
http://kamailio.org/docs/modules/3.1.x/modules/tm.html#tm.serial_forking
I went with trying the above method of doing the route advance because it
was the only method my google search turned up.
Perhaps something very simple like a failure route that calls next_gw would
do the trick instead:
failure_route["lcr_failure"]
{
if (!next_gw()) {
t_reply("503", "Service not available - No more gateways");
exit;
};
t_relay();
}
What I am trying to accomplish is having kamailio contact my next lcr
gateways in sequence if the first attempt failed. Do either of these
methods: either serial forking of branches generated in a while loop with
next_gw or calling next_gw() in a failure route, seem like the right way to
proceed?
Thanks again for your assistance.
I hope this message finds you well.
All the best
Will Ferrer
jh wrote
willf1976 writes:
So I take it then that the method described in
this thread will work for
making fall back routes for lcr that will run in the order of their
priority, instead of in reverse order as some folks were saying in the
thread?
read what lcr readme tells about priority. if it does not work as
described, file a bug report.
I also am planning on switching to using
append_branch instead of
km_append_branch -- I thought I would mention this in case there was some
reason that km_append_branch is being used instead. So in the end my
script
would look something much like this:
if (is_method("INVITE"))
{
if (!load_gws(1, $rU, $fu)) {
sl_send_reply("502", "Unable to load gateways");
exit;}
if(!next_gw()){
sl_send_reply("503", "Unable To find a gateway");
exit;}
while(next_gw()){
append_branch(); }
sl_send_reply("302","Moved temporary");
exit;
}
you should call append_branch() after next_gw(). also, the above calls
next_gw() twice. at some point you should call t_relay() to send the
message.
-- juha
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@.sip-router
--
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6 Dec
6 Dec
4:28 a.m.
Hi All
For the record, putting in the failure route worked for me. Very simple
solution.
All the best.
Will Ferrer
--
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Sent from the Users mailing list archive at Nabble.com.
4003
days inactive
4417
days old
14 comments
3 participants
participants (3)
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Fatima Chahrour~Vanrise Support -
Juha Heinanen -
willf1976