30 May
2010
30 May
'10
2:35 a.m.
Hi, kamailio 1.5.4, let's suppose the following tables for LCR:
lcr:
+----+-----------+-------------+---------+----------+
| id l prefix | from_uri | grp_id | priority |
+----+-----------+-------------+---------+----------+
| 1 | NULL | NULL | 1 | 1 |
| 2 | NULL | NULL | 2 | 2 |
+----+-----------+-------------+---------+----------+
gw:
+----+--------+---------------------+------+-----------+
| id | grp_id | ip_addr | port | weight |
+-----+--------+---------------------+------+-----------+
| 1 | 1 | 1.1.1.1 | 5060 | 1 |
| 2 | 1 | 2.2.2.2 | 5060 | 1 |
| 3 | 2 | 2.2.2.2 | 5062 | 1 |
+----+--------+--------+---------------------+---------+
IMHO it's clear what *should* occur when a request arrives and
load_gw() is called:
1) First the rule 1 should be executed, so gws with id 1 and 2 would
be tested (when invoking next_gw() in route and failure_route).
2) In case both gws fail them the gw 3 should be used.
However this is what occurs:
DBG:lcr:do_load_gws: added matched_gws[0]=[3, 1, 2, 2460706]
DBG:lcr:do_load_gws: added matched_gws[1]=[1, 1, 1, 3162440]
DBG:lcr:add_gws_into_avps: added gw_uri_avp <1|0||33686018||5062|0|0>
DBG:lcr:add_gws_into_avps: added gw_uri_avp <1|0||16843009||5060|0|0>
This is, just gws 1 and 2 are loaded in gw_uri_avp (or sometimes gws 1
and 3). Note that gws 2 and 3 have same IP but *different* port, so
there is no reason at all not to load gw 3.
IMHO this shouldn't be the behavior, in fact it seems buggy IMHO. I
know that same occurs in 3.0 version. Any comment?
BTW I strongly think that LCR module should be improved and I would
like to do it. Some ideas I have in mind:
- Improve the tables design by having three tables: lcr_rules,
lcr_groups and lcr_gws.
- Allow loading same gw twice in gw_uri_avp when it belongs to
different lcr_rule/lcr_groups.
- An option to enable/dissable a gw (by setting a 0 in a new "enabled" column).
- Am option to allow stopping lcr_rules, this is, if the lcr_rule is
choosen (by priority/prefix/from_uri) and the request fails, no other
gateways from other lcr_rules would be tryed.
Well, I'll detail it further soon. Regards.
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
30 May
30 May
7:45 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
Iñaki Baz Castillo writes:
This is, just gws 1 and 2 are loaded in gw_uri_avp (or
sometimes gws 1
and 3). Note that gws 2 and 3 have same IP but *different* port, so
there is no reason at all not to load gw 3.
IMHO this shouldn't be the behavior, in fact it seems buggy IMHO. I
know that same occurs in 3.0 version. Any comment?
inaki,
the comment is that currently uniqueness of gws is based only on gw's ip
address or hostname , i.e., port is not considered. after quick look at
the code, it should be quite easy to add checking of port too.
BTW I strongly think that LCR module should be
improved and I would
like to do it. Some ideas I have in mind:
- Improve the tables design by having three tables: lcr_rules,
lcr_groups and lcr_gws.
i cannot comment on this one unless you tell why three tables are
needed.
- Allow loading same gw twice in gw_uri_avp when it
belongs to
different lcr_rule/lcr_groups.
if that is the port issue discussed in above, it can be done.
- An option to enable/dissable a gw (by setting a 0 in
a new "enabled"
- column).
that already exists in 3.0 (see defunct column).
- Am option to allow stopping lcr_rules, this is, if
the lcr_rule is
choosen (by priority/prefix/from_uri) and the request fails, no other
gateways from other lcr_rules would be tryed.
why can't you do this in the script?
-- juha
11:15 p.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
2010/5/30 Juha Heinanen <jh(a)tutpro.com>om>:
Main reason: current design makes *very* difficult to manage the
tables content via an admin interface (i.e. a web interface).
Also, if I want to include same gateway (so same IP, port and
attributes) in two rules then I must to repeat same data in two
different gw entries. This is not good from a design point of view.
What I'll propose is:
- table 'lcr_rules' (same as 'lcr') includes entries with
'instance_id', 'grp_id' and so. Also it would contain two new columns:
'enabled' (the rule is just loaded if it's 1), and 'stop' (no new
rules are inspected when 'load_gws()' finds this rule). More about
this at the end of the mail.
Also I would add a new schema constain: a composite UNIQUE key for
columns 'prefix', 'grp_id' and 'priority' as it makes no sense
two
rules with same prefix, grp_id and priority (which is chosen first? is
it random?).
- table 'lcr_gws' include gateways definition. Same as current 'gw'
table but *without* 'grp_id' and 'instance_id' columns.
- table 'lcr_groups' contains these columns:
- id: primary key as usual.
- grp_id: The group identifier.
- gw_id: integer pointing to the id column of an entry under
'lcr_gws' table.º
If a group contains 2 gateways then two entries would exist in this
table with same 'grp_id', each one with 'gw_id' pointing to the
corresponding entry under 'lcr_gws' table.
This would make management of lcr easier as it respects some basic
design patterns:
- Each lcr rule contains some attributes (priority, prefix...) and
"belongs to" one gws group (grp_id).
- Each gws group "has many" gateways (entries under lcr_gws table) and
also "has_many" lcr rules (as same grp_id could appear in different
lcr_rules entries).
- Each gateway must be defined just *once* even if it used by various
lcr groups (different gws groups sharing the same gateway without
having to duplicate its information ini two places, why not?).
ok :)
Because it's ugly to do so in the script, it makes unfeasible to admin
it via a web interface. A common use case:
- I want a default route using gw1 and gw2 (for any prefix).
- In calls to 001 (USA) I want to use *just* gw3, so I could create a
lcr rule with prefix 001 and grp_id=X, and a lcr_group with id=X
containing just gw3.
- If gw3 is down or replies 503 (this is, if the USA lcr rule fails) I
don't want to try the default route (gw1 and gw2). This is not
possible with the current design as the default route (lcr rules with
no prefix) would be loaded automatically.
- With my proposal (a column "stop" with value 1) there is no need to
coding ugly and static code in failure_route. Instead load_gws() would
stop inspecting lcr_rules table when a rule with "stop=1" is found.
I suggest/propose all of this due to my real experience. I've deployed
a proxy for load balancing, failover and routing (based on prefix) to
some PSTN gateways and after implementing it I really miss the above
features.
Regards.
PS: I'll write such specifications and proposals somewhere (maybe in
the wiki) and will share here to comment.
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
Iñaki Baz Castillo writes:
SInce different gws can exist in gw table with same ip:[port] but
different attributes (strip, flags, etc) I think it should be possible
to load gateways with same ip[:port] for same request if theses
gateways match the rules.
This is, just gws 1 and 2 are loaded in
gw_uri_avp (or sometimes gws 1
and 3). Note that gws 2 and 3 have same IP but *different* port, so
there is no reason at all not to load gw 3.
IMHO this shouldn't be the behavior, in fact it seems buggy IMHO. I
know that same occurs in 3.0 version. Any comment?
inaki,
the comment is that currently uniqueness of gws is based only on gw's ip
address or hostname , i.e., port is not considered. after quick look at
the code, it should be quite easy to add checking of port too. BTW I strongly
think that LCR module should be improved and I would
like to do it. Some ideas I have in mind:
- Improve the tables design by having three tables: lcr_rules,
lcr_groups and lcr_gws.
i cannot comment on this one unless you tell why three tables are
needed. - An option to
enable/dissable a gw (by setting a 0 in a new "enabled"
- column).
that already exists in 3.0 (see defunct column). - Am option to
allow stopping lcr_rules, this is, if the lcr_rule is
choosen (by priority/prefix/from_uri) and the request fails, no other
gateways from other lcr_rules would be tryed.
why can't you do this in the script?
31 May
31 May
8:47 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
Iñaki Baz Castillo writes:
yes, i agree that it should be possible to load two gws with the same ip
or hostname if port is not given or if it is given and is different in
the two.
the comment is
that currently uniqueness of gws is based only on gw's ip
address or hostname , i.e., port is not considered. after quick
look at
the code, it should be quite easy to add checking of port too.
SInce different gws can exist in gw table with same ip:[port] but
different attributes (strip, flags, etc) I think it should be possible
to load gateways with same ip[:port] for same request if theses
gateways match the rules. Main reason: current design makes *very* difficult to
manage the
tables content via an admin interface (i.e. a web interface).
Also, if I want to include same gateway (so same IP, port and
attributes) in two rules then I must to repeat same data in two
different gw entries. This is not good from a design point of view.
ok.
What I'll propose is:
- table 'lcr_rules' (same as 'lcr') includes entries with
'instance_id', 'grp_id' and so. Also it would contain two new columns:
'enabled' (the rule is just loaded if it's 1), and 'stop' (no new
rules are inspected when 'load_gws()' finds this rule). More about
this at the end of the mail.
Also I would add a new schema constain: a composite UNIQUE key for
columns 'prefix', 'grp_id' and 'priority' as it makes no sense
two
rules with same prefix, grp_id and priority (which is chosen first? is
it random?).
- table 'lcr_gws' include gateways definition. Same as current 'gw'
table but *without* 'grp_id' and 'instance_id' columns.
- table 'lcr_groups' contains these columns:
- id: primary key as usual.
- grp_id: The group identifier.
- gw_id: integer pointing to the id column of an entry under
'lcr_gws' table.º
If a group contains 2 gateways then two entries would exist in this
table with same 'grp_id', each one with 'gw_id' pointing to the
corresponding entry under 'lcr_gws' table.
sounds ok.
Because it's ugly to do so in the script, it makes
unfeasible to admin
it via a web interface. A common use case:
- I want a default route using gw1 and gw2 (for any prefix).
- In calls to 001 (USA) I want to use *just* gw3, so I could create a
lcr rule with prefix 001 and grp_id=X, and a lcr_group with id=X
containing just gw3.
- If gw3 is down or replies 503 (this is, if the USA lcr rule fails) I
don't want to try the default route (gw1 and gw2). This is not
possible with the current design as the default route (lcr rules with
no prefix) would be loaded automatically.
- With my proposal (a column "stop" with value 1) there is no need to
coding ugly and static code in failure_route. Instead load_gws() would
stop inspecting lcr_rules table when a rule with "stop=1" is found.
does this cover the case where there are two equal priority gw groups
defined for prefix 001?
I suggest/propose all of this due to my real
experience. I've deployed
a proxy for load balancing, failover and routing (based on prefix) to
some PSTN gateways and after implementing it I really miss the above
features.
thanks for your suggestions, it just remains to implement them :-).
-- juha
9:07 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
2010/5/31 Juha Heinanen <jh(a)tutpro.com>om>:
Hi, also remember the new constrain I proposed: there cannot be two
lcr entries with same prefix, grp_id and priority.
Sure. Just let me some weeks until I get some time to make the
specifications and start coding it.
Regards.
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
- I want a
default route using gw1 and gw2 (for any prefix).
- In calls to 001 (USA) I want to use *just* gw3, so I could create a
lcr rule with prefix 001 and grp_id=X, and a lcr_group with id=X
containing just gw3.
- If gw3 is down or replies 503 (this is, if the USA lcr rule fails) I
don't want to try the default route (gw1 and gw2). This is not
possible with the current design as the default route (lcr rules with
no prefix) would be loaded automatically.
- With my proposal (a column "stop" with value 1) there is no need to
coding ugly and static code in failure_route. Instead load_gws() would
stop inspecting lcr_rules table when a rule with "stop=1" is found.
does this cover the case where there are two equal priority gw groups
defined for prefix 001? I
suggest/propose all of this due to my real experience. I've deployed
a proxy for load balancing, failover and routing (based on prefix) to
some PSTN gateways and after implementing it I really miss the above
features.
thanks for your suggestions, it just remains to implement them :-).
9:16 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
Iñaki Baz Castillo writes:
what i tried to ask is that there is two different gw groups for u.s.
prefix 001. they may have the same or different priority, but stopping
must not be done before both of them are tried if first one does not
work.
-- juha
does this
cover the case where there are two equal priority gw groups
defined for prefix 001?
Hi, also remember the new constrain I proposed: there cannot be two
lcr entries with same prefix, grp_id and priority.
9:30 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
2010/5/31 Juha Heinanen <jh(a)tutpro.com>om>:
Iñaki Baz Castillo writes:
what i tried to ask is that there is two different gw groups for u.s.
prefix 001. they may have the same or different priority, but stopping
must not be done before both of them are tried if first one does not
work.
Well, I would speack about "two different lcr rules with same prefix"
rather than "two different groups with prefix 001" (prefix belongs to
lcr rules rather than gws groups).
In the case you mean, the stopper should be set in the lcr rule (for
prefix 001) with lower priority (highest value). This is:
rule 1)
- prefix: 001
- grp_id: 1
- priority: 1
- stop: no
rule 2)
- prefix: 001
- grp_id: 2
- priority: 2
- stop: yes
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
does this
cover the case where there are two equal priority gw groups
defined for prefix 001?
Hi, also remember the new constrain I proposed: there cannot be two
lcr entries with same prefix, grp_id and priority.
9:53 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
Iñaki Baz Castillo writes:
rule 1)
- prefix: 001
- grp_id: 1
- priority: 1
- stop: no
rule 2)
- prefix: 001
- grp_id: 2
- priority: 2
- stop: yes
this would not cover the case, where the two rules have the same
priority, which they currently can have. it would be best if "stop"
could be defined on the length of the prefix, i.e., "do not consider
shorter prefixes".
-- juha
10:06 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
2010/5/31 Juha Heinanen <jh(a)tutpro.com>om>:
Iñaki Baz Castillo writes:
Right. Please let me re-definice the constrain I suggested as it was
wrong. It should be (for a future I mean):
There cannot be two lcr rules with same instance_id, prefix, priority
and from_uri. This would solve your case, right?
rule 1)
- prefix: 001
- grp_id: 1
- priority: 1
- stop: no
rule 2)
- prefix: 001
- grp_id: 2
- priority: 2
- stop: yes
this would not cover the case, where the two rules have the same
priority, which they currently can have. it would be best if "stop"
could be defined on the length of the prefix, i.e., "do not consider
shorter prefixes".
But where to configure such option? is it a module option or a per lcr
rule option (table column)?
Regards.
-- juha
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
10:33 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
Iñaki Baz Castillo writes:
i haven't thought about that yet. perhaps "stop" in a rule could be
interpreted to mean "stop" trying shorted prefixes, or then there would
need to be one more (prefix) table.
-- juha
There cannot be two lcr rules with same instance_id,
prefix, priority
and from_uri. This would solve your case, right?
i don't think so, because currently there can be more than one gw group
for the same instance_id, prefix, priority, and from_uri. if priority
is the same, it just means that the user does not care, which gw group
is tried first.
it would be
best if "stop"
could be defined on the length of the prefix, i.e., "do not consider
shorter prefixes".
But where to configure such option? is it a module option or a per lcr
rule option (table column)?
10:38 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
Juha Heinanen writes:
i haven't thought about that yet. perhaps
"stop" in a rule could be
interpreted to mean "stop" trying shorted prefixes, or then there would
need to be one more (prefix) table.
one possibility might be to include a "stop" character at the end of
prefix, e.g.
001$
which would mean, if prefix 001 matches, do not try any shorter ones.
-- juha
10:55 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
2010/5/31 Juha Heinanen <jh(a)tutpro.com>om>:
Juha Heinanen writes:
It would be ok. However from a design point of view IMHO it's simpler
to have a column "stop" rather than requiring special syntax in
'prefix' column. Content of lcr table is loaded into memory so I don't
see the benefict of using 001$ rather than "stop=1". In order to
design an admin interface is easier to handle a single column rather
than inspecting the syntax of the 'prefix' column.
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
i haven't thought about that yet. perhaps
"stop" in a rule could be
interpreted to mean "stop" trying shorted prefixes, or then there would
need to be one more (prefix) table.
one possibility might be to include a "stop" character at the end of
prefix, e.g.
001$
which would mean, if prefix 001 matches, do not try any shorter ones.
10:59 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
Iñaki Baz Castillo writes:
It would be ok. However from a design point of view
IMHO it's simpler
to have a column "stop" rather than requiring special syntax in
'prefix' column. Content of lcr table is loaded into memory so I don't
see the benefict of using 001$ rather than "stop=1". In order to
design an admin interface is easier to handle a single column rather
than inspecting the syntax of the 'prefix' column.
what bothers me is that stopping business has nothing to do with a
particular row in rules table, but with a particular prefix. may be a
clean solution requires one more table.
-- juha
11:11 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
2010/5/31 Juha Heinanen <jh(a)tutpro.com>om>:
Iñaki Baz Castillo writes:
And this would be better from a design point of view :)
So let's imagine a new table 'lcr_stopper_rules' with the following columns:
- id: Primary key as usual.
- rule_id: Integer pointing to an entry under 'lcr_rules' ('lcr') table.
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
It would be ok. However from a design point of
view IMHO it's simpler
to have a column "stop" rather than requiring special syntax in
'prefix' column. Content of lcr table is loaded into memory so I don't
see the benefict of using 001$ rather than "stop=1". In order to
design an admin interface is easier to handle a single column rather
than inspecting the syntax of the 'prefix' column.
what bothers me is that stopping business has nothing to do with a
particular row in rules table, but with a particular prefix. may be a
clean solution requires one more table.
11:21 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
Iñaki Baz Castillo writes:
So let's imagine a new table
'lcr_stopper_rules' with the following columns:
- id: Primary key as usual.
- rule_id: Integer pointing to an entry under 'lcr_rules' ('lcr') table.
inaki,
the above does not tie stopping to a certain prefix, but rules. what
determines if a given rule applies is:
lcr_id prefix from_uri
stopping should be tied to these three values, which would result in a
table containing
id lcr_id prefix from_uri stop
then there would be a table
id id_from_above_table grp_id priority
perhaps we could handle the rest offline?
-- juha
11:44 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
2010/5/31 Juha Heinanen <jh(a)tutpro.com>om>:
Iñaki Baz Castillo writes:
Juha, you are 100% right and you gave me the key of the current
problem: lcr rule definitions and lcr rule steps are merged now in
same table 'lcr'. They should be splited in two tables:
table 'lcr_rules':
- id: Id of the rule.
- lcr_id: instance of LCR.
- prefix
- from_uri
- stopper: 1/0
- enabled: 1/0
table 'lcr_rule_steps':
- id: Primary key as usual.
- rule_id: Intenger pointing to 'lcr_rules' entry.
- proirity: Priority of this step within its rule.
- gw_grp_id: Integer pointing to an entry in 'lcr_gw_groups'.
tables 'lcr_gw_groups' and 'lcr_gws' as defined in a previous mail.
So let's imagine a new table
'lcr_stopper_rules' with the following columns:
- id: Primary key as usual.
- rule_id: Integer pointing to an entry under 'lcr_rules' ('lcr') table.
inaki,
the above does not tie stopping to a certain prefix, but rules. what
determines if a given rule applies is:
lcr_id prefix from_uri
stopping should be tied to these three values, which would result in a
table containing
id lcr_id prefix from_uri stop
then there would be a table
id id_from_above_table grp_id priority perhaps we could handle the rest offline?
Ok, I'm connected to sip-router IRC channel right now. Or let me how
to conntact you whenever it's ok for you.
Regards.
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
10:52 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
2010/5/31 Juha Heinanen <jh(a)tutpro.com>om>:
Yes but in my proposal it wouldn't be valid. Those rules should have a
different priority value (constrain). IMHO it makes sense as the
random behavior should just occur for gateways within same group
(based on weight).
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
There cannot
be two lcr rules with same instance_id, prefix, priority
and from_uri. This would solve your case, right?
i don't think so, because currently there can be more than one gw group
for the same instance_id, prefix, priority, and from_uri. if priority
is the same, it just means that the user does not care, which gw group
is tried first.
10:51 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
Iñaki Baz Castillo writes:
we cannot make invalid rules that previously have been allowed. what
comes to randomizing the rules, yes, it could be added.
-- juha
i don't
think so, because currently there can be more than one gw group
for the same instance_id, prefix, priority, and from_uri. if priority
is the same, it just means that the user does not care, which gw group
is tried first.
Yes but in my proposal it wouldn't be valid. Those rules should have a
different priority value (constrain). IMHO it makes sense as the
random behavior should just occur for gateways within same group
(based on weight).
9:32 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
2010/5/31 Juha Heinanen <jh(a)tutpro.com>om>:
yes, i agree that it should be possible to load two
gws with the same ip
or hostname if port is not given or if it is given and is different in
the two.
Note that with my proposal there is no need to inspect ip[:port] in
loaded gateways. Instead it's just required to inspect the id field of
lcr_gws table, so each gw would be loaded just once even if it appears
in different gws groups.
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
9:52 a.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
Iñaki Baz Castillo writes:
Note that with my proposal there is no need to inspect
ip[:port] in
loaded gateways. Instead it's just required to inspect the id field of
lcr_gws table, so each gw would be loaded just once even if it appears
in different gws groups.
ok.
-- juha
1 Jun
1 Jun
6:35 p.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
On Sunday 30 May 2010, Iñaki Baz Castillo wrote:
[..]
Because it's ugly to do so in the script, it makes unfeasible to admin
it via a web interface. A common use case:
- I want a default route using gw1 and gw2 (for any prefix).
- In calls to 001 (USA) I want to use *just* gw3, so I could create a
lcr rule with prefix 001 and grp_id=X, and a lcr_group with id=X
containing just gw3.
- If gw3 is down or replies 503 (this is, if the USA lcr rule fails) I
don't want to try the default route (gw1 and gw2). This is not
possible with the current design as the default route (lcr rules with
no prefix) would be loaded automatically.
- With my proposal (a column "stop" with value 1) there is no need to
coding ugly and static code in failure_route. Instead load_gws() would
stop inspecting lcr_rules table when a rule with "stop=1" is found.
Hi Iñaki,
maybe you want to take a look to the cr module (at least for some additional
inspiration..), where we've added functionality to match for the prefix,
arbitrary flags or for reply codes and decide with this data if the next rule/
which rule should be executed as a next try. You'll find some examples in the
docs (1.21, 1.22). The specific table is named "carrierfailureroute".
Perhaps it provides a bit more generic solution to the usecase you described,
if i understand it correctly.
Cheers,
Henning
- Am
option to allow stopping lcr_rules, this is, if the lcr_rule is
choosen (by priority/prefix/from_uri) and the request fails, no other
gateways from other lcr_rules would be tryed.
why can't you do this in the script?
6:43 p.m.
New subject: [Kamailio 1.5 LCR] gw with same IP but different port is not loaded
2010/6/1 Henning Westerholt <henning.westerholt(a)1und1.de>de>:
Hi Iñaki,
maybe you want to take a look to the cr module (at least for some additional
inspiration..), where we've added functionality to match for the prefix,
arbitrary flags or for reply codes and decide with this data if the next rule/
which rule should be executed as a next try. You'll find some examples in the
docs (1.21, 1.22). The specific table is named "carrierfailureroute".
Perhaps it provides a bit more generic solution to the usecase you described,
if i understand it correctly.
Thanks Henning.
Yes, I want also to learn about cr module :)
For now Juha and me have started a wiki page with new additions and
changes to LCR module:
http://www.kamailio.org/dokuwiki/doku.php/modules-new-design:lcr-module-des…
Thanks a lot.
--
Iñaki Baz Castillo
<ibc(a)aliax.net>
5076
days inactive
5078
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21 comments
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participants (3)
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Henning Westerholt -
Iñaki Baz Castillo -
Juha Heinanen