Cisco 1751 not tagging hmm!

[encarter]

I have a Cisco 1751 that we are going to use for backup voice however when i do a sh policy-map QoS int no packets are being tagged as EF, which is causing the voice to cut out. With a similar configuration on a 2811 router the packets tag just fine.

What gives. Here is the sh ver and sh run:

IDS-Decatur-1751#sh ver
Cisco IOS Software, C1700 Software (C1700-BK9NO3R2SY7-M), Version 12.4(25), RELEASE SOFTWARE (fc2)
Technical Support:

http://www.cisco.com/techsupport

Copyright (c) 1986-2009 by Cisco Systems, Inc.
Compiled Tue 21-Apr-09 09:35 by prod_rel_team

ROM: System Bootstrap, Version 12.2(1r)XE1, RELEASE SOFTWARE (fc1)

IDS-Decatur-1751 uptime is 14 hours, 3 minutes
System returned to ROM by power-on
System restarted at 20:42:48 EDT Wed Jun 10 2009
System image file is "flash:c1700-bk9no3r2sy7-mz.124-25.bin"


Current configuration : 5030 bytes
!
! Last configuration change at 20:55:44 EDT Wed Jun 10 2009 by admin
!
version 12.4
service timestamps debug datetime msec localtime
service timestamps log datetime msec localtime
service password-encryption
!
hostname BackupVoice-1751
!
boot-start-marker
boot-end-marker
!
card type t1 0
logging buffered 4096 debugging
enable secret 5 $1
!
no aaa new-model
memory-size iomem 15
clock timezone EST -5
clock summer-time EDT recurring
mmi polling-interval 60
no mmi auto-configure
no mmi pvc
mmi snmp-timeout 180
!
!

!
!
ip cef
no ip domain lookup
ip domain name thdg.com
ip auth-proxy max-nodata-conns 3
ip admission max-nodata-conns 3
!
!
!
!
!
!
controller T1 0/0
framing esf
linecode b8zs
cablelength long 0db
channel-group 0 timeslots 1-24
!
!
class-map match-all VOICE-CONTROL
match ip dscp cs3
match ip dscp af31
class-map match-all VIDEO
match ip dscp af41
class-map match-all VOICE
match ip dscp ef
match ip dscp cs5
!
!
policy-map QoS
class VOICE
priority 768
set dscp ef
class VIDEO
priority 334
class VOICE-CONTROL
bandwidth 50
set dscp af31
class class-default
fair-queue
set dscp default
!
!
!
!
!
!
interface FastEthernet0/0
description *** LAN Interface ***
ip address 172.17.14.3 255.255.255.0
no ip mroute-cache
speed auto
full-duplex
standby ip 172.17.14.1
standby priority 90
standby preempt
!
interface Serial0/0:0
description *** Backup MPLS Cir ***
bandwidth 1536
ip address XXX 255.255.255.252
no cdp enable
service-policy output QoS
!
interface Serial1/0
ip address XXX 255.255.255.252
ip access-group PROTECT in
no cdp enable
!
router bgp 65000
no synchronization
bgp router-id 172.17.14.3
bgp log-neighbor-changes
network 172.17.14.0 mask 255.255.255.0
neighbor 172.17.14.2 remote-as 65000
neighbor XXX remote-as 6745
neighbor XXX update-source Serial0/0:0
neighbor XXX route-map PREPEND out
no auto-summary
!
ip default-gateway 172.17.14.1
no ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 Serial0/0:0
no ip http server
no ip http secure-server
!
!
!
!
ip access-list extended GRE
permit gre 172.17.255.0 0.0.0.255 172.17.255.0 0.0.0.255

logging trap warnings

!
route-map PREPEND permit 10
set as-path prepend 65000 65000 65000
!
!
!
control-plane
!
!
line con 0
line aux 0
line vty 0 4
exec-timeout 180 0
password 7 10
login local
line vty 5 15
login local
!
ntp clock-period 17179841
ntp server 192.5.41.40
ntp server 172.17.0.11
ntp server 172.17.0.77 prefer
end

thanks

 

[North323]

should the QoS policy be put on the LAN side (fa0/0)?

 

[encarter]

i should also note that these are calls across the WAN, so its only IP Calls not Analog at all.

 

[encarter]

i dont think so, we didnt do that on our 2811 (which works fine).

Packets enter in on the fa0/0 and exit to the WAN over the serial connection. It is there that we want to tag the packets leaving the router to go across the WAN.

 

[North323]

is it going through the same ISP?

 

[dgrizzard]

In most systems the tagging is done at the phone/software agent level. Is this the case on your system?

I see where you're trying to set the tagging but if your device is not tagging at cs5/ef already then it would not tag it as ef either. Then you're QoS policy would not be applied to any packets.