Hello,
I encounter some difficulties to set a QOS which enables to free space for default-class, when Priority queues are empty.
Here is the configuration I’ve made :
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access-list 199 remark equipements VOIP
access-list 199 permit ip 192.168.1.0 0.0.0.255 any
access-list 199 deny ip any any
access-list 198 remark equipements VISIO
access-list 198 permit ip 192.168.2.0 0.0.0.255 any
access-list 198 deny ip any any
class-map match-all voip
match access-group 199
class-map match-all prec-voip
match ip precedence 5
class-map match-all visio
match access-group 198
class-map match-all prec-visio
match ip precedence 4
!
!
policy-map QOS
class prec-voip
priority 200
class prec-visio
priority 200
class class-default
bandwitdh percent 20
random-detect
policy-map tag
class voip
set ip precedence 5
class visio
set ip precedence 4
interface vlan1
service-policy input tag
interface dialer0
bandwidth 512
service-policy output QOS
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The service policy has no effect on traffic (with show policy-map int dia0)
I’ve also tried to apply service-policy on ATM0, but it’s impossible to do it when we use encapsulation aal5mux ppp dialer.
I’ve also tried to make this configuration , but no effect :
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Device(config)# policy-map childExample
Device(config-pmap)# class voice
Device(config-pmap-c)# priority percent 30
Device(config-pmap-c)# exit
Device(config-pmap)# class video
Device(config-pmap-c)# bandwidth percent 50
Device(config-pmap-c)# exit
Device(config-pmap)# class class-default
Device(config-pmap-c)# fair-queue
Device(config-pmap-c)# exit
Device(config)# policy-map parent
Device(config-pmap)# class class-default
Device(config-pmap-c)# shape average 1000000
Device(config-pmap-c)# service-policy child
Device(config-pmap-c)# exit
Device(config)# interface dialer 0
Device(config-if)# service-policy output parent
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Here is the IOS version used :c870-advipservicesk9-mz.124-24.T2.bin
Do you know if there some improvements in QOS with newest IOS versions ?
Thanks in advance for any help on this topic.