[cisco-nas] Shaping/Policing PPPoE sessions on Cisco 10008

[Richie, Dave J]

A little history......currently, we are using UBR's to shape our current
PPPoATM DSL subscribers.  Depending on their VPI, the customers get
applied to a VC-Class where the UBR speed is set.  (256kb, 1.5mb, 5mb,
etc.)  We only shape/police the downstream while the DSLAM
shapes/polices the upstream.
 
Now for the future........we are in the process of implementing Calix
DSLAMs that will be connected via Ethernet rings to Cisco 7609's.  There
we will hand off the traffic via Layer-2 vlans to our Cisco 10008 DSL
Aggregator for PPPoE termination.  We were trying to figure out the best
way to shape/police the customers for their purchased bandwidth.  Our
Cisco Sales Engineer said that we can create service-policies on the
10008 and use a radius attribute to point those customers to those
service policies.  I'd like to know if this is the best option and how
well it scales for 1000's of customers.  We don't want to shoot
ourselves in the foot by using a method that will start to tax the CPU
on our router and cause degradation of service to others.
 
It would be great to hear what other Service Providers are doing to
shape/police their customers download and upload speeds.
 
Regards,
-Dave R.

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