[e2e] TCP Performance with Traffic Policing

[Detlef Bosau]

On 08/12/2011 09:37 PM, Barry Constantine wrote:
> Hi,
>
> Let me provide better background information.
>
> End-customers (business companies) purchase a network service from a network provider and purchase a Service Level Agreement (SLA).  This SLA specifies the committed information rate (CIR) which the provider will guarantee along with loss / latency specifications.

That's in fact the traditional scenario of, e.g., a Frame Relay link as 
it is done for years now.

Once again my question: How is traffic policing achieved here?

> The end customer connects up either with 100M or 1G interface (generally) and the provider generally polices down to the CIR.
>

Not quite. CIR means particularly: the _least_ information rate.

That's the reason why I ask for the policing algorithm.

I'm particularly afraid that the algorithm in use may cause a lot of 
packet order distortion.

-- 
------------------------------------------------------------------
Detlef Bosau
Galileistraße 30	
70565 Stuttgart                            Tel.:   +49 711 5208031
                                            mobile: +49 172 6819937
                                            skype:     detlef.bosau
                                            ICQ:          566129673
detlef.bosau at web.de                     http://www.detlef-bosau.de
------------------------------------------------------------------