BITS

BITS is a component of IIS that manages file transfers in a more advanced manner than a standard copy job. When the ConfigMgr client requests files from BITS, BITS handles the transfer asynchronously, freeing the ConfigMgr client to move on to other tasks. Being bandwidth-sensitive, BITS continuously monitors the available bandwidth during the transfer and throttles the transfer as required. Though BITS can help manage bandwidth, it only monitors the local NIC—it does not monitor the bandwidth of the network.

In addition, BITS supports checkpoint restarts. If a network connection is lost during transfer, BITS stops the transfer and resumes where it left off after the connection is available again.

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