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Exchange Client Traffic and QoS

What do you think about throttling Exchange client traffic via QoS policing at WAN router.  Basically, the Exchange server is at a datacenter with the following configuration on the datacenter WAN router:

policy-map

class Exchange

  set ip dscp af11

    police 1536000

Traffic is destined for branch office.

In my past experience, I have not attempted to accelerate or throttle Exchange via QoS.  I have always left it in the default queue.  Anyone with any past or current experience with this?

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Exchange Client Traffic and QoS

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Personally, generally prefer shaping over policing and prefer prioritization over shaping.

So, for example, if the concern is Exchange taking too much bandwidth relative to other traffic, minimize its bandwidth guarantee percentage with your CBWFQ policy.

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