# Copyright 2022 VyOS maintainers and contributors <maintainers@vyos.io> # # This library is free software; you can redistribute it and/or # modify it under the terms of the GNU Lesser General Public # License as published by the Free Software Foundation; either # version 2.1 of the License, or (at your option) any later version. # # This library is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # Lesser General Public License for more details. # # You should have received a copy of the GNU Lesser General Public # License along with this library. If not, see <http://www.gnu.org/licenses/>. from vyos.qos.base import QoSBase class DropTail(QoSBase): # https://man7.org/linux/man-pages/man8/tc-pfifo.8.html def update(self, config, direction): tmp = f'tc qdisc add dev {self._interface} root pfifo' if 'queue_limit' in config: limit = config["queue_limit"] tmp += f' limit {limit}' self._cmd(tmp) # call base class super().update(config, direction)