Cisco & IPO

Yes Many Times, What is the exact issue you are having ??

Umm anotherprivatebuild !!!

Make sure the frame connection and router can support fragmentation

I have deployed IPO behind cisco routers a few times with no problems either but I had access to the routers. I guess I am looking for some backup on this and the best way to config the routers for VoIP and QoS over Frame Relay. I have given the router people many times the suggested deployment but they constantly tell me that they have tried it and still have issues with quality...I know they have not deployed fragmentation correctly. If anyone has sample configs or real world experience I would appreciate it. I have a cicso doc that explains FRF.12 and VoIP over Frame....but I guess that's not good enough for the people I am dealing with...

Thanks,
dphoneguy24

I will try and find some router configs and post them for you. Hang 5

Umm anotherprivatebuild !!!

Cisco Configurations below, you will notice that they are currently matching on the UPD range this should really be DSCP EF on the Access List. You will notice as well they are fragmenting @ 320 Bytes.
The rule of thumb with fragmentation is 80 Bytes per 64k Link Access speed.

SYDNEY

Building configuration...

Current configuration : 2920 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname syd-rtr01
!
enable secret 5 REMOVED
enable password 7 REMOVED
!
ip subnet-zero
!
!
ip name-server 192.168.1.20
!
ip dhcp-server 192.168.1.20
!
class-map match-all voice-signaling
match access-group 103
class-map match-all voice-traffic
match ip dscp ef
!
!
policy-map VOICE-POLICY
class voice-traffic
priority 45
class voice-signaling
bandwidth 8
class class-default
fair-queue
!

voice call carrier capacity active
!

interface FastEthernet0/0
description *** Local Ethernet, Sydney ***
ip address 192.168.1.1 255.255.255.0
ip helper-address 192.168.1.20
speed 100
full-duplex
!
interface Serial0/0
description *** iPrimus Frame Relay Service ***
bandwidth 512
no ip address
encapsulation frame-relay
frame-relay traffic-shaping
frame-relay lmi-type ansi
!
interface Serial0/0.1 point-to-point
description *** Frame Relay PVC to, Brisbane ***
ip address 192.168.254.9 255.255.255.248
frame-relay class VOICEMAP
frame-relay interface-dlci 17
class VOICEMAP
!
interface Serial0/0.2 point-to-point
description *** Frame Relay PVC to, Melbourne ***
ip address 192.168.254.1 255.255.255.248
frame-relay class VOICEMAP
frame-relay interface-dlci 16
class VOICEMAP
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.1.4
ip route 125.21.0.0 255.255.0.0 192.168.1.5
ip route 172.20.0.0 255.255.0.0 192.168.1.6
ip route 172.21.0.0 255.255.0.0 192.168.1.6
ip route 172.22.0.0 255.255.0.0 192.168.1.6
ip route 172.23.0.0 255.255.0.0 192.168.1.6
ip route 172.25.0.0 255.255.0.0 192.168.1.6
ip route 172.28.7.0 255.255.255.0 192.168.1.6
ip route 192.168.2.0 255.255.255.0 192.168.254.10
ip route 192.168.3.0 255.255.255.0 192.168.254.2
ip route 202.82.206.0 255.255.255.0 192.168.1.6
ip route 210.65.197.0 255.255.255.0 192.168.1.6
no ip http server
!
!
!
map-class frame-relay VOICEMAP
frame-relay cir 256000
frame-relay bc 2560
frame-relay be 0
frame-relay mincir 256000
service-policy output VOICE-POLICY
frame-relay fragment 320
access-list 103 permit tcp any eq 1720 any
access-list 103 permit tcp any any eq 1720
access-list 103 permit udp any eq 50795 any
access-list 103 permit udp any any eq 50795
dialer-list 1 protocol ip permit
!
snmp-server community public RO
snmp-server community ema-snmp RW
snmp-server enable traps tty
call rsvp-sync
!
dial-peer cor custom
!
!
!
banner motd ^Cc
---------------------------------------------------------

**** Unathorised Access Prohibited ****

---------------------------------------------------------
'^C
!
line con 0
line aux 0
line vty 0 4
password 7 REMOVED
login
!
no scheduler allocate
end

MELBOURNE

Building configuration...

Current configuration : 1780 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname mel-rtr01
!
enable secret 5 REMOVED
enable password 7 REMOVED
!
ip subnet-zero
!
!
ip name-server 192.168.1.20
!
ip dhcp-server 192.168.1.20
!
class-map match-all voice-signaling
match access-group 103
class-map match-all voice-traffic
match ip dscp ef
!
!
policy-map VOICE-POLICY
class voice-traffic
priority 45
class voice-signaling
bandwidth 8
class class-default
fair-queue
!
!
!
voice call carrier capacity active
!

!
interface FastEthernet0/0
description *** Local Ethernet Segment, Melbourne ***
ip address 192.168.3.1 255.255.255.0
ip helper-address 192.168.1.20
speed 100
full-duplex
!
interface Serial0/0
description *** iPrimus Frame Link to Sydney ***
bandwidth 384
ip address 192.168.254.2 255.255.255.248
encapsulation frame-relay
frame-relay class VOICEMAP
frame-relay traffic-shaping
frame-relay interface-dlci 16
frame-relay lmi-type ansi
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.254.1
no ip http server
!
!
!
map-class frame-relay VOICEMAP
frame-relay cir 256000
frame-relay bc 2560
frame-relay be 0
frame-relay mincir 256000
service-policy output VOICE-POLICY
frame-relay fragment 320
access-list 103 permit tcp any eq 1720 any
access-list 103 permit tcp any any eq 1720
access-list 103 permit udp any eq 50795 any
access-list 103 permit udp any any eq 50795
dialer-list 1 protocol ip permit
!
snmp-server community ema-snmp RW
snmp-server community public RO
snmp-server enable traps tty
call rsvp-sync
!
dial-peer cor custom
!
!
!
!
line con 0
line aux 0
line vty 0 4
password 7 REMOVED
login
!
end

BRISBANE

Building configuration...

Current configuration : 1779 bytes
!
version 12.2
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname bne-rtr01
!
enable secret 5 REMOVED
enable password 7 REMOVED
!
ip subnet-zero
!
!
ip name-server 192.168.1.20
!
ip dhcp-server 192.168.1.20
!
class-map match-all voice-signaling
match access-group 103
class-map match-all voice-traffic
match ip dscp ef
!
!
policy-map VOICE-POLICY
class voice-traffic
priority 45
class voice-signaling
bandwidth 8
class class-default
fair-queue
!
!
!
voice call carrier capacity active
!

!
!
interface FastEthernet0/0
description *** Local Ethernet Segment,Brisbane ***
ip address 192.168.2.1 255.255.255.0
ip helper-address 192.168.1.20
speed 100
full-duplex
!
interface Serial0/0
description *** iPrimus Frame Link to Sydney ***
bandwidth 384
ip address 192.168.254.10 255.255.255.248
encapsulation frame-relay
frame-relay class VOICEMAP
frame-relay traffic-shaping
frame-relay interface-dlci 16
frame-relay lmi-type ansi
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.254.9
no ip http server
!
!
!
map-class frame-relay VOICEMAP
frame-relay cir 256000
frame-relay bc 2560
frame-relay be 0
frame-relay mincir 256000
service-policy output VOICE-POLICY
frame-relay fragment 320
access-list 103 permit tcp any eq 1720 any
access-list 103 permit tcp any any eq 1720
access-list 103 permit udp any eq 50795 any
access-list 103 permit udp any any eq 50795
dialer-list 1 protocol ip permit
!
snmp-server community public RO
snmp-server community ema-snmp RW
snmp-server enable traps tty
call rsvp-sync
!
dial-peer cor custom
!
!
!
!
line con 0
line aux 0
line vty 0 4
password 7 REMOVED
login
!
end

Hope this helps you

Umm anotherprivatebuild !!!

Mr IPO, so this matches voice trafic with DSCP value of EF ? Isn't the usual setting 46 = B8 ?

EF = Express Forwarding

So in the access list you would match the DSCP value the IPO attaches

JeSTeROCK

By 'the usual setting', on the IP Office you mean? Isn't this by default Code Selector 6 = (decimal) 48.
You can change this to Expedited Forwarding = (dec) 46 (bin) 101110 on the system tab, right?

You are correct B8 HEX = 46 DEC = 101110 binary = Cisco match on EF

Hope this helps

Umm anotherprivatebuild !!!