06-11-2007 08:58 AM - edited 03-03-2019 05:23 PM
I have a 3750 stack of 2 switches and have configured the following QoS configurations on them.
There are avaya phones connected to these switches. The QoS doesn't seem to be working.. am i missing something
i do not see any ACL matches nor do see packets matching the policy map
Here is my configuration
mls qos
!
mls qos map cos-dscp 0 8 18 26 34 46 48 56
!
mls qos srr-queue output cos-map queue 1 threshold 3 5
mls qos srr-queue output cos-map queue 2 threshold 3 6 7
mls qos srr-queue output cos-map queue 2 threshold 2 3
mls qos srr-queue output cos-map queue 2 threshold 1 4
mls qos srr-queue output cos-map queue 3 threshold 3 2
mls qos srr-queue output cos-map queue 4 threshold 3 0
mls qos srr-queue output cos-map queue 4 threshold 1 1
!
mls qos srr-queue output dscp-map queue 1 threshold 3 46 40
mls qos srr-queue output dscp-map queue 2 threshold 3 48 56
mls qos srr-queue output dscp-map queue 2 threshold 2 24 26 28 30
mls qos srr-queue output dscp-map queue 2 threshold 1 32 34 36 38
mls qos srr-queue output dscp-map queue 3 threshold 3 16 18 20 22
mls qos srr-queue output dscp-map queue 4 threshold 3 0
mls qos srr-queue output dscp-map queue 4 threshold 1 8 10
!
mls qos queue-set output 1 threshold 2 75 85 50 400
mls qos queue-set output 1 threshold 4 15 100 50 400
ip access-list extended VOICE
permit udp 172.16.220.0 0.0.0.127 any range 16384 32767
class-map match-all VOICE
match access-group name VOICE
policy-map VOICE-ACCESS
class VOICE
set ip dscp ef
interface range FastEthernet1/0/1 - 48
switchport access vlan 2
switchport trunk encapsulation dot1q
switchport trunk native vlan 2
switchport mode trunk
switchport voice vlan 20
service-policy input VOICE-ACCESS
thnaks in advance
06-11-2007 10:06 AM
add this cmd to all the interfaces to which voip phones are connected:
"mls qos-trust dscp"
Chk if this helps, as it servd my purpose in similar case.
07-22-2007 01:47 AM
You have to find another way to check your configuration. On most switches the qos related ACL and the show policy-map interface command do not show any counters. Seems to be the price we have to pay for hardware based qos ...
KR,
Edgar
07-22-2007 02:03 AM
... but you can use the
Do not follow the advise to configure
Edgar
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