This setting limits the network bandwidth that BITS uses for peercache transfers (this setting does not affect transfers from the origin server).
To prevent any negative impact to a computer caused by serving other peers, by default BITS will use up to 30% of the bandwidth of the slowest active network interface. For example, if a computer has both a 100Mbps network card, and a 56 Kbps modem, and both are active, BITS will use a maximum of 30% of 56Kbps.
You can change the default behavior of BITS, and specify a fixed maximum bandwidth that BITS will use for Peercaching.
If you enable this setting, you can enter a value in bits per second (bps) between 1048576 and 4294967200 to use as the maximum network bandwidth used for peer-caching.
If you disable this setting or do not configure it, the default value of 30% of the slowest active network interface will be used.
Note: This setting has no effect if the "Allow BITS peercaching" setting is disabled or not configured.