[c-nsp] 6500 service-policy

[Mark Boolootian]

> I have seen tech notes by Cisco that if you want the policer to be
> friendly  to TCP traffic you should allow up to 1 second of burst at
> the committed rate.

Cathy Wittbrodt gave a talk at NANOG back in 1998 on CAR and
how it interacted with TCP.  The abstract for the talk read:

    CAR Talk: Configuration Considerations for Cisco's Committed 
    Access Rate (Cathy Wittbrodt, @Home)

    Some months ago @Home began evaluating CAR for some of the 
    functionality that we required. We evaluated solely CAR's rate 
    limiting capabilities, and the extent to which rate limiting 
    impacts the network. In the process we discovered how CAR 
    interacts with TCP, as well as the optimum configuration of 
    burst parameters.

I believe Cisco may have used her results in making their recommendations.
The talk is worth watching.  You can find in the Tuesday 1:30pm slot
here:

  http://www.nanog.org/mtg-9811/agen1198.html