New subject: [Serusers] SRV failover question

4 Dec 2006

Hi Steve,

Yes I am trying to get SER to resend the INVITE to priority 2 after
priority 1 timed out due to connection down scenario.

Thank you,

Paul 

-----Original Message-----
From: Steve Blair [mailto:blairs@isc.upenn.edu] 
Sent: Monday, December 04, 2006 9:37 AM
To: Paul Antinori (pantinor)
Cc: Greger V. Teigre; serusers(a)iptel.org
Subject: Re: [Serusers] SRV failover question

Paul:

  Are you trying to get the proxy server to re-send the invite based on
the SRV list or the phone?

_Steve

Paul Antinori (pantinor) wrote:
...
  Greger and all,

 The URL does not really help.  You will see my cfg script below is 
 already using rewritehostport with no port and the SRV name.
 I also am not using t_on_failure as it should not be necessary 
 according the post by Klaus.

 Heres my SRV table with the ranking priorities:

 _sip._udp.vxml.pats.cisco.com   SRV service location:
           priority       = 1
           weight         = 1
           port           = 5060
           svr hostname   = vxml-1.pats.cisco.com
 _sip._udp.vxml.pats.cisco.com   SRV service location:
           priority       = 2
           weight         = 1
           port           = 5060
           svr hostname   = vxml-2.pats.cisco.com
 _sip._udp.vxml.pats.cisco.com   SRV service location:
           priority       = 3
           weight         = 1
           port           = 5060
           svr hostname   = vxml-3.pats.cisco.com
 pats.cisco.com  nameserver = ns1.pats.cisco.com
 vxml-1.pats.cisco.com   internet address = 10.86.129.x
 vxml-2.pats.cisco.com   internet address = 10.86.129.x
 vxml-3.pats.cisco.com   internet address = 10.86.129.x
 ns1.pats.cisco.com      internet address = 10.86.129.x

 Thanks anyone for any help,

 Paul

 ----------------------------------------------------------------------
 --
 *From:* Greger V. Teigre [mailto:greger@teigre.com]
 *Sent:* Monday, December 04, 2006 6:41 AM
 *To:* Paul Antinori (pantinor)
 *Cc:* serusers(a)iptel.org
 *Subject:* Re: [Serusers] SRV failover question

 http://lists.iptel.org/pipermail/serusers/2006-October/030813.html

 Paul Antinori (pantinor) wrote:
>
> Hi,
>
> Regarding the SRV query addition in (ser-0.9.7-pre7), when the call 
> fails on the first priority destination, it never seems to attempt to 
...
 > send the INVITE to the second priority destination
in the SRV 
> response list.  Is there anything else to script in the ser.cfg file 
> to get this to work?
>
> Thanks for help,
>
> Paul
>
> [root@iptel-sip-proxy /]# /usr/sbin/tethereal | grep SIP Capturing on 
...
 > eth0
>  10.100556 10.86.142.144 -> 10.86.129.17 SIP Request: INVITE 
> sip:77710107773365@10.86.129.17:5060;transport=udp
>  10.101774 10.86.129.17 -> 10.86.142.144 SIP Status: 100 trying -- 
> your call is important to us
>  14.233596 10.86.129.17 -> 10.86.142.144 SIP Status: 408 Request 
> Timeout  14.235930 10.86.142.144 -> 10.86.129.17 SIP Request: ACK 
> sip:77710107773365@10.86.129.17:5060;transport=udp
> 2139 packets captured
>
> [root@iptel-sip-proxy /]# /usr/sbin/tethereal | grep DNS Capturing on 
...
 > eth0
>   4.279486 10.86.129.17 -> 10.86.129.16 DNS Standard query SRV 
> _sip._udp.vxml.pats.cisco.com
>   4.279897 10.86.129.16 -> 10.86.129.17 DNS Standard query response 
> SRV 1 1 5060 vxml-1.pats.cisco.com SRV 2 1 5060 vxml-2.pats.cisco.com 
...
 > SRV 3 1 5060 vxml-3.pats.cisco.com
>
>   4.280045 10.86.129.17 -> 10.86.129.16 DNS Standard query A 
> vxml-1.pats.cisco.com
>   4.280231 10.86.129.16 -> 10.86.129.17 DNS Standard query response A 
...
 > 10.86.129.2   <--this is unplugged from the
network
>
>
> debug=3
> fork=yes
> log_stderror=yes
> rev_dns=no
> port=5060
> children=4
> check_via=no
> sip_warning=yes
> fifo="/tmp/ser_fifo"
> uid="nobody"
> gid="nobody"
>
> #aliases for this proxy server
> #ie hostnames/domains that it routes for alias=sox.cisco.com 
> alias=pats.cisco.com
>
> loadmodule "/usr/local/lib/ser/modules/sl.so"
> loadmodule "/usr/local/lib/ser/modules/tm.so"
> loadmodule "/usr/local/lib/ser/modules/rr.so"
> loadmodule "/usr/local/lib/ser/modules/maxfwd.so"
> loadmodule "/usr/local/lib/ser/modules/usrloc.so"
> loadmodule "/usr/local/lib/ser/modules/registrar.so"
> loadmodule "/usr/local/lib/ser/modules/textops.so"
>
> modparam("usrloc", "db_mode",   0)
> modparam("rr", "enable_full_lr", 1)
> modparam("tm","fr_timer",5)
> modparam("tm","fr_inv_timer",5)
>
> route{
>
>
>         if (!mf_process_maxfwd_header("10")) {
>                 sl_send_reply("483","Too Many Hops");
>                 break;
>         };
>
>         if (uri=~"^sip:1") {
>                 log(1, "SER found 1*\n");
>                 rewritehostport("ccm.pats.cisco.com");route(1);break;
>         }
>         if (uri=~"^sip:2") {
>                 log(1, "SER Found 2*\n");
>                 rewritehostport("ccm.pats.cisco.com");route(1);break;
>         }
>         if (uri=~"^sip:7") {
>                 log(1, "SER Found 7*\n");
> rewritehostport("vxml.pats.cisco.com");route(1);break;
...
           }
         if (uri=~"^sip:8") {
                 log(1, "SER Found 8*\n");
                 rewritehostport("SER.pats.cisco.com");route(1);break;
         }
         if (uri=~"^sip:9") {
                 log(1, "SER Found 9*\n");

 rewritehostport("ringtone.pats.cisco.com");route(1);break;
         }

         log(1,"Could Not Match DN to Route\n");
         route(1);
 }

 route[1]
 {
         if (!t_relay()) {
                 sl_reply_error();
         };
 }

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RE: [Serusers] SRV failover question