08-26-2014 07:53 AM - edited 03-07-2019 08:32 PM
My ISP has said they will set up their side to give 50% policed real time traffic and 30% for our application traffic burstable then 5% anything else burstable. The QOS below is my attempt to do this but I was advised that to apply it to the Dialer 1 interface I hade to create a second policy-map (ADSLOut) which had the class-default and the child policy (QOSADSL) within that.
When I did this I can't apply it to the Dialer 1 interface but if I use the child policy then it will allow me to apply that, will this work the same way.
class-map match-all RealTime
match ip dscp ef
class-map match-all General
match any
class-map match-any Application
match ip dscp cs3
match ip dscp af41
!
policy-map QOSADSL
class RealTime
bandwidth percent 50
class Application
priority percent 30
class General
priority percent 5
class class-default
shape peak percent 85
policy-map ADSLOut
class class-default
service-policy QOSADSL
!
!
interface Dialer1
<Snipped>
bandwidth 1240
ip nbar protocol-discovery
ip flow ingress
ip flow egress
load-interval 30
tx-ring-limit 3
tx-queue-limit 3
service-policy output QOSADSL
or
service-policy output ADSLOut
09-04-2014 12:05 PM
Hi @scotlandvisit,
My first opinion is a recomendation: in the policy-map, when you're configuring LLQ use the priority command for delay-sensitive traffic (Voice) and the bandwidth command for the rest. This is because the priority command is used to indentify a class as a "strict priority class" which in my opinion should be the voice traffic and the bandwidth command is used to allocate bandwidth to nonpriority classes.
The interface is not letting you apply the service-policy because you have to configure shaping inside the class-default of the parent policy-map. This shape is going to be the value in bps that you want to assing to the traffic classes that you've configured. For example, let's say that you want to allocate 1Mbps for all the classes.
-
policy-map QOSADSL
class RealTime
priority percent 50
class Application
bandwidth percent 30
class General
bandwidth percent 5
class class-default
shape peak percent 85
policy-map ADSLOut
class class-default
shape average 1000000
service-policy QOSADSL
!
interface Dialer1
service-policy output ADSLOut
-
Try this configuration and let me know.
HTH.
Rgrds,
Martin, IT Specialist
09-04-2014 07:38 PM
What version of IOS and what platform are you trying this one? There are some recent enhancements to properly support this sort of configuration on Dialer interfaces that may be of interest to you.
You may have better luck applying this to an ATM PVC than a dialer interface of you are running older code.
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