A base station central unit receives message(s) for a wireless device from a second base station. The message(s) comprise a first aggregate maximum bit rate of the wireless device at the first base station. The message(s) comprise a PDCP packet duplication parameter indicating that a first packet flow comprises duplicated PDCP packets. The first base station receives the duplicated PDCP packets of the first packet flow from the second base station. The first base station transmits the duplicated PDCP packets to the wireless device. The first base station determines that a bit rate between the wireless device and the first base station exceeds the first aggregate maximum bit rate. The determining ignores, based on the PDCP packet duplication parameter, the duplicated PDCP packets. The first base station limits the bit rate between the wireless device and the first base station based on the determining.