998593f243
Bridge: statistics() aggregates rx/tx bytes+packets from all member ports. arp_stats() delegates to each port, showing per-port breakdown. Bond: statistics() aggregates from all slaves (active+standby). arp_stats() delegates to each slave. TUN: statistics() now returns live counters tracked during send()/recv(). rx_bytes, rx_packets, tx_bytes, tx_packets increment per-packet. Previously these devices returned Stats::default() (all zeros). Now netcfg /ifaces/*/stats shows real data for bridge, bond, tun.