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QOS on VDSL Routers

dwakeman
Level 1
Level 1

Hi 

 

I have a number of Cisco887 to deploy and the customer would like to assign a priority queue to the voice packets. I have read a number of posts and docs and the policy seems straight forward execpt it asks for the average speed of the  circuit.

 

I have ADSL which i can apply this and the bandwidth will change automatically.


policymap P2
class c1
priority Y
class c2
bandwidth X
interface ATM0/0/0.132 point-to-point
pvc 1/32
vbr-nrt 2000 2000
encapsulation aal5snap
protocol pppoe
service-policy output P2

 

However I have FTTC80/20 and FTTC 40/10 all of which could give differant upload speeds depending on how near the Green cabinet is.

 

I beleve i need a parent shaper for Qos to work and i cant just use the Child policy?

 

How do i know what speed to shape it too for the above circuits?

 

Is there away this can automatically adjust to the actual speed similer to the ADSL?

 

The example below also set  it on the interface, but i think i need to apply it to the dialer?

 

policymap parent_shaping
class class-default
shape average {speed}
service-policy child_queueing
policymap child_queueing
class c1
priority Y
class c2
bandwidth X

interface ethernet 1/0
pppoe enable
service-policy output parent_shaping

 

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