RouterOS v6.29 新功能 "FastTrack"

从v6.29rc9, 将引入新的功能FastTrack，根据官方解释可以使你的路由器Firewall/NAT性能提升5倍，6.29rc9大致新增内容如下： *) ipv4 fasttrack fastpath - accelerates connection tracking and nat for marked connections (more than 5x performance improvement compared to regular slow path conntrack/nat) - currently limited to TCP/UDP only; *) added ~fasttrack-connection~ firewall action in filter/mangle tables for marking connections as fasttrack; *) added fastpath support for bridge interfaces - packets received and transmitted on bridge interface can go fastpath (previously only bridge forwarded packets could go fastpath); *) packets now can go half-fastpath - if input interface supports fastpath and packet gets forwarded in fastpath but output interface does not support fastpath or has interface queue other than only-hw-queue packet gets converted to slow path only at the dst interface transmit time; 官方介绍FastTrack= FastPath + Conntrack，主要特点为： 1、FastTrack加速指定的连接跟踪条目的数据包处理 2、FastTrack具备Full NAT支持 3、与普通的连接跟踪和NAT性能提升5倍 4、firewall filter/mangle菜单下新增fasttrack-connection选项 5、支持IPv4 TCP/UDP连接跟踪条目 6、工作方式类似于“mark-connection” 添加连接跟踪标记，并允许数据包被定义为FastTrack 7、并非所有的数据包都能被FastTrack处理，有一些数据包将仍然使用普通的Conntrack（连接跟踪） x86是不支持FastTrack（因为FastPath不支持），经过测试FastTrack使用上有较多限制，例如在VLAN、PPP等协议启用后，不能开启