In hindsight and upon better understanding the requirement, David’s suggestion—or
something like it, e.g. htable-based—makes more sense.
Hashing would only ensure that given incoming IP X, the same outbound dispatcher set is
chosen, which is what I thought you were trying to achieve. But it doesn’t allow you to
dictate what that set will actually be, only that it will be consistent.
—
Sent from mobile, with due apologies for brevity and errors.
On Oct 7, 2019, at 6:44 AM, David Villasmil
<david.villasmil.work(a)gmail.com> wrote:
You could also use the dialplan module, using the match regexp to return the GID of the
incoming ip.
Say all calls coming from 192.168.0.100 must use the IPs 192.168.100.2 and 3 for
outbound.
I.e.:
Adding a record in the dialplan table which includes match_exp=“192.168.0.100”,
attrs=“100”
Adding records in the dispatcher, like:
GID destination
100 192.168.100.2
100 192.168.100.3
...
Then use the inbound source_ip (192.168.0.100) to match using dialplan then getting the
list of destinations from the dispatcher, something like:
dp_match("1", "$si");
xlog("[DISPATCH] inbound '$si' will use dispatcher GID:
'$var(dispatcher_id)'\n");
xlog("[DISPATCH] avp(dsdstid): $avp(dsdstid)\n");
if(!ds_select_dst("$var(dispatcher_id)", "4"))
{
send_reply("404", "No destination");
exit;
} else {
xlog("[DISPATCH] ds_select_dst was succesful'\n");
}
xlog("L_DBG", "--- SCRIPT: going to <$ru> via
<$du>\n");
t_on_failure("RTF_DISPATCH");
route(RELAY);
exit;
Hope that helps
David
On Mon, 7 Oct 2019 at 11:22, Alex Balashov
<abalashov(a)evaristesys.com> wrote:
Hi Oleg,
What about choosing the dispatcher group based on a hash
https://kamailio.org/docs/modules/5.2.x/modules/cfgutils.html#cfgutils.f.co…
over a SIP attribute that is tied to the source IP of the inbound SBC, such as $si or
$fd?
https://www.kamailio.org/wiki/cookbooks/5.2.x/pseudovariables#si_-_source_i…
https://www.kamailio.org/wiki/cookbooks/5.2.x/pseudovariables#fd_-_from_uri…
— Alex
—
Sent from mobile, with due apologies for brevity and errors.
On Oct 7,
2019, at 5:43 AM, Oleg Belousov <obelousov(a)gmail.com> wrote:
Hello.
In our setup kamailio perfoms some logic depending on call direction, inbound or
outbound. Call direction is identified by 2 SBC IP (IP_inbound/IP_outbound), we currently
use for that 2 dispatcher groups and that is working fine.
Now number of peer nodes increased from one SBC till few tens, but we still need to keep
SIP-links adjacency, meaning that call which arrived from SBC_N IP_inbound
need to be submitted via same SBC_N IP_outbound and vice versa. There could be few
approaches to implement that requirement, I'm wondering if can use existing dispatcher
function/select destination logic to support SIP-links adjacency.
--
obelousov.tel
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Regards,
David Villasmil
email: david.villasmil.work(a)gmail.com
phone: +34669448337
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