From: Jason Sinclair (sinclairj@powertel.com.au)
Date: Wed Oct 16 2002 - 23:16:59 GMT-3
In a real life situation you would want to use VoFR when possible over VoIP
as there are less overheads involved in running across frame. That said, if
you want to be able to route around link failures in a meshed environment
you would wish to use VoIP. This is a matter of design and as with all
network choices you should list your requirements and then choose the tech
to suit. There are no hard and fast rules, however there are perhaps some
more intricacies in getting VoFR up and running than VoIP.
Jason Sinclair CCIE #9100
Manager, Network Control Centre
POWERTEL
55 Clarence Street,
SYDNEY NSW 2000
AUSTRALIA
office: + 61 2 8264 3820
mobile: + 61 416 105 858
email: sinclairj@powertel.com.au
-----Original Message-----
From: aansar@sscomp.com.sg [mailto:aansar@sscomp.com.sg]
Sent: Thursday, 17 October 2002 11:42
To: Benny Chong; ccielab@groupstudy.com
Subject: Re: VoFR example in Solie book... can't make it work.
it didnt worked for me also.
i moved to read again from different sources , instead of karl solie.. i
will let u know if its work
"Benny Chong"
<c_benny@hotm To: ccielab@groupstudy.com
ail.com> cc:
Sent by: Subject: VoFR example in Solie
book... can't make it work.
nobody@groups
tudy.com
17-10-02
05:51 AM
Please
respond to
"Benny Chong"
Hi,
I am testing VoFR, and use the same configuration as the example on page
423-431 of Solie's Practical Studies book. (besides using different Serial
interface, DLCI etc. to fit my equipment.) Below are the config and the
'csim' test... can someone find anything wrong? Thanks very much.
By the way, I am a little bit confuse. Can someone explain what is the
difference between VoFR and VoIP across a Frame Relay network? How do I
decide when should I use VoFR and when should I use VoIP arcoss a FR?
r13#
r13#csim start 1414
csim: called number = 1414, loop count = 1 ping count = 0
csim err csimDisconnected recvd DISC cid(5)
csim: loop = 1, failed = 1
csim: call attempted = 1, setup failed = 1, tone failed = 0
***************************************************
Router 13 config:
!
voice-port 3/0/0
!
voice-port 3/0/1
!
!
dial-peer voice 13 pots
destination-pattern 1313
port 3/0/0
!
dial-peer voice 1414 vofr
destination-pattern 1414
session target Serial0/0 111
!
!
interface Serial0/0
no ip address
encapsulation frame-relay
frame-relay traffic-shaping
!
interface Serial0/0.1 point-to-point
ip address 100.100.100.1 255.255.255.0
frame-relay interface-dlci 111
class voice
vofr cisco
!
!
map-class frame-relay voice
frame-relay cir 768000
frame-relay bc 1000
frame-relay mincir 120000
no frame-relay adaptive-shaping
frame-relay fair-queue
frame-relay voice bandwidth 78000
frame-relay fragment 1500
**************************************************************
Router 14 config:
!
voice-port 3/0/0
!
voice-port 3/0/1
!
!
dial-peer voice 14 pots
destination-pattern 1414
port 3/0/0
!
dial-peer voice 1313 vofr
destination-pattern 1313
session target Serial0/0 112
!
!
interface Serial0/0
no ip address
encapsulation frame-relay
frame-relay traffic-shaping
!
interface Serial0/0.1 point-to-point
ip address 100.100.100.2 255.255.255.0
frame-relay interface-dlci 112
class voice
vofr cisco
!
map-class frame-relay voice
frame-relay cir 768000
frame-relay bc 1000
frame-relay mincir 120000
no frame-relay adaptive-shaping
frame-relay fair-queue
frame-relay voice bandwidth 78000
frame-relay fragment 1500
!
line con 0
line aux 0
line vty 0 4
!
end
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