DSL over L2TP Basic Shaper

Within IOS it is possible for logical interfaces to not experiance congestion. Once a shaper has been created on a logical interface then the interface can experiance congestion and prioritisation can take effect. NOTE: ASK9Ks support subscriber:sub-qos-policy-in/out here.

# Example applying a QoS policy on RADIUS to VAI on the LNS
# (per-session QoS)
 Cisco-AVPair = "ip:sub-qos-policy-out=PM-Shape-DSL"

# On the LNS:
#
# show subscriber sess | inc adsl-user-01
# 195 Vi37 authen Local Term adsl-user-01 01:02:03 
#
# show policy-map int virtual-access 37


Applying a police to a VAI:

 policy-map PM-ADSL-8M-POLICE
  class class-default
  police 8000000

 Cisco-AVPair = "ip:sub-qos-policy-out=PM-ADSL-8M-POLICE"
 # Legacy style config
 # Cisco-AVPair = "lcp:interface-config=service-policy output PM-ADSL-8M-POLICE"


Sometimes to apply a shape the legacy style AV pair is required:

 policy-map PM-ADSL-8M-SHAPE
  class class-default
  shape average 8000000

 Cisco-AVPair = "lcp:interface-config=service-policy output PM-ADSL-8M-SHAPE"



Shapes can be made using a 100% bandwidth parent tunnel to then carve out feature like voice:

class-map match-all CM-VOIP
 match access-group 100
!
policy-map PM-PRIORITY-VOIP
 class CM-VOIP-Traffic
 ! Guarantee 200Kbps for voice
 bandwidth 200
!
policy-map PM-SHAPE-ADSL-WITH-VOICE
 class class-default
 ! Shape to 100% (LAC should pass line sync speed over L2TP to our LNS)
 shape average percent 100
 service-policy PM-PRIOITY-VOIP
!

 Cisco-AVPair = "ip:sub-qos-policy-out=PM-SHAPE-ADSL-WITH-VOICE"

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