From: David Terry (ETL) (David.Terry@etl.ericsson.se)
Date: Thu Feb 06 2003 - 11:48:08 GMT-3
Hello Lee,
My understanding of the config is that the router will dial using the first dial-peer command (preference 0). If the 129.9.1.1 link was down the second dial-peer preference 1 will be used.
This is used when you've got two separate paths to the destination router, you could also configure the router to target a loop back interface as long as it is reachable via a routing protocol. This would mean you would only need one dial-peer statement.
HTH
David
-----Original Message-----
From: Hunt Lee [mailto:huntl@webcentral.com.au]
Sent: 06 February 2003 07:00
To: 'ccielab@groupstudy.com'
Subject: Voice preference
Hi friends,
I have seen the below configs a few times...
dial-peer voice 3 voip
destination pattern 900
session target ipv4:129.9.1.1
preference 0
dial-peer voice 4 voip
destination pattern 900
session target ipv4:129.9.2.2
preference 1
Yet I don't understand what is it's purpose. There were 2 dial peers, with
different destination IPs, but with the same destination phone number?? So
is this saying from the local router, it will first try to dial to 129.9.1.1
(router B - FXS port1), and if it is busy, it then dials to (router B - FXS
port2)??
If this is the case, on Router B, would the following the correct?
dial-peer voice <1> pots
destination-pattern <900> <--- same local number on both FXS ports??
port <1/0/0>
dial-peer voice <2> pots
destination-pattern <900> <--- same local number on both FXS ports??
port <1/0/1>
Sorry if this is obvious, but I have no IP phone at hand, so i'm a bit
curious here.
Regards,
Lee
.
.
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