I am looking at possibly implementing QoS for a hosted Exchange service. Our internet pipe is currently being over-utilized so I want to guarantee this app/service, as well as VPN/ESP/IPSec gets priority over everything else. I am looking for overall design suggestions and specifically, where should I place the policy-map?? See Attachment.
Thank you for the response. We own both perimeter routers so, yes I have access. I plan to use both links, but I can do some PBR off the fatpipe to force out 1 link or the other. Is there are reason you ask? Thanks again for your input.
QoS methods generally well support service guarantees at points of egress congestion. Since you note "Our internet pipe is currently being over-utilized . . .", two issues you might have are whether there's sufficient bandwidth to guarantee the level of service that's needed for your Exchange and VPN/ESP/IPSec traffic and whether you can use QoS for your inbound (i.e. ISP egress) Internet traffic.
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