Section 1: Allows users to enable/disable bandwidth sharing features. Set the control button to blue to enable and gray to disable the feature. Sharing Traffic Limit is to set a monthly limit on bandwidth to be shared.
Section 2: BT Sharing allows or blocks other users from using the device's shared bandwidth for the purpose of torrent downloading. Set the control button to blue to enable and gray to disable the feature. Sharing Bandwidth Limit sets the limit of bandwidth allowed for other users to use for torrent downloads.