RE: Dial peer hunting

From: Keyur Shah (kshah@hellocomputers.com)
Date: Mon Sep 02 2002 - 21:50:04 GMT-3


Minh,

I have also noticed it. After csim start fails first time, try again with
csim start, and it seems to work. If you are close to the phone, you will
also hear your second preference voip peer ringing.

-Keyur Shah-
CCIE# 4799 (R/S; Security)
CISSP,ccsa,css1,scsa,scna,mct,mcse,cni,mcne
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-----Original Message-----
From: Minh Vuong [mailto:mvuong84@hotmail.com]
Sent: Monday, September 02, 2002 4:22 PM
To: ccielab@groupstudy.com
Subject: Dial peer hunting

Hello all,
I am working a scenario whereby I want to set up 2 VoIP target sessions to 2
different subnets for the same called number. In case the first target
session is unreachable, I want to ring the same phone number (different
physical phone) using the second target session. I thought preference on the
VoIP dial peers would do the trick but have been unable to get it to work.
So on the calling router R2, I have: dial-peer voice 100 voip preference 2
destination-pattern 1111 session target ipv4:150.1.1.1 ! dial-peer voice
101 voip preference 5 destination-pattern 1111 session target
ipv4:150.1.12.1 I intentionally cut off the route to 1st session target
150.1.1.1.R2#ping 150.1.1.1Type escape sequence to abort. Sending 5,
100-byte ICMP Echos to 150.1.1.1, timeout is 2 seconds: ..... Success rate
is 0 percent (0/5) The second session target 150.1.12.1 is still
reachable:R2#ping 150.1.12.1Type escape sequence to abort. Sending 5,
100-byte ICMP Echos to 150.1.12.1, timeout is 2 seconds: !!!!! Success rate
is 100 percent (5/5), round-trip min/avg/max = 4/4/4 ms With "debug voip
ccapi inout" turned on, I used "csim start 1111" to simulate
call: -R2#
5d04h: csim: called number = 1111, loop count = 1 ping count = 05d04h:
ccAppInitialize
(name=CSIM

, appHandle=0x21210B0)
5d04h: csimSetupPeer peer type(2), destPat(1111), matched(4), target()
5d04h: ccCallSetupRequest (Inbound call = 0xFFFFFFFF, outbound peer =100,
dest=,
        params=0x21207E0 mode=0, *callID=0x2120B48, prog_ind = 0)
5d04h: ccCallSetupRequest numbering_type 0x0
5d04h: dest pattern 1111, called 1111, digit_strip 0
5d04h: callingNumber=, calledNumber=1111, redirectNumber= display_info=
calling_oct3a=0
5d04h: accountNumber=, finalDestFlag=0,
guid=0000.0000.0000.0000.0000.0000.0000.0000
5d04h: peer_tag=100
5d04h: ccIFCallSetupRequestPrivate: (vdbPtr=0x1DC86BC, dest=,
callParams={called=1111,called_oct3=0x0, calling=,calling_oct3=0x0,
calling_xlated=false, subscriber_type_str=, fdest=0,
voice_peer_tag=100},mode=0x0) vdbPtr type = 1
5d04h: ccIFCallSetupRequestPrivate: (vdbPtr=0x1DC86BC, dest=,
callParams={called=1111, called_oct3 0x0, calling=,calling_oct3 0x0,
calling_xlated=false, fdest=0, voice_peer_tag=100}, mode=0x0, xltrc=-5)
5d04h: ccCallSetContext (callID=0x47, context=0x213AB68)
5d04h: csim_do_test: timeout cid(71), st(0), oldst(0)
5d04h: ccCallDisconnect (callID=0x47, cause=0x0 tag=0x0)
5d04h: cc_api_icpif: expect factor = 0
5d04h: cc_api_call_disconnect_done(vdbPtr=0x1DC86BC, callID=0x47, disp=0,
tag=0x0)
5d04h: csim_do_test: cid(71), ev(12), disp(0)
5d04h: csimTraceSct: cid(71),st(2),oldst(0)
5d04h: csim: loop = 1, failed = 1
5d04h: csim: call attempted = 1, setup failed = 1, tone failed = 0 As you
can see, it's always using dial-peer 100 and never used dial-peer 101 even
though the session target for dial-peer 100 is unreachable. Any ideas?
Thanks,
Minh

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