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A brief anecdote speaks to this point: After a southern California semiconductor company provisioned QoS for Voice and Mission-Critical Data (SAP R/3), everything went well for about six months. At that point, users began complaining of excessive delays in completing basic transactions. Operations that previously required a second or less to complete were taking significantly longer. The application teams blamed the networking teams, claiming that "QoS was broken." Further investigation produced the information in the following network asset tracking
The network asset tracking in this instance, SAPhad been upgraded from version 3.0F to 4.6C. As a result, a basic order-entry transaction required 35 times more traffic than the original version. Additional provisioning and policy tuning was required to accommodate the new version of the same application
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