To apply this information to your company, consider the following examples. OWA clients log on and log off two times per day.The average message size is 50 kilobytes (KB).The estimates in this section are based on the following assumptions: The information below will help you estimate the Exchange Online network bandwidth your company needs to run the program. ( Working on a migration? Leverage Agile IT for your Office 365 migration project.) Exchange Online For more detailed information about estimating the network traffic for each online service, see the links to other documentation in each of the following sections. Detailed specifications are beyond the scope of this topic.

The following sections provide guidelines for estimating the bandwidth usage of each service. Your company’s network topology and the capacity of the various pieces of network hardware.The capacity of the network connections and network segments associated with each client computer.The performance of your Internet browser software.The type of task each client computer is performing.The number of client computers in use at one time.The services your company has subscribed to.There are many variables to consider when estimating network traffic. Each of the services has its own bandwidth requirements. Microsoft Online Services currently offers three online services: Microsoft Exchange Online, SharePoint Online and Office Live Meeting.

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