Hello, in function STP_transmit_check_conditions (rstplib/transmit.c) the case: case IDLE: if (!port->helloWhen) return STP_hop_2_state (this, TRANSMIT_PERIODIC); if (!port->sendRSTP && port->newInfo && (port->txCount < TxHoldCount) && (port->role == DesignatedPort) && port->helloWhen) return STP_hop_2_state (this, TRANSMIT_CONFIG); if (!port->sendRSTP && port->newInfo && (port->txCount < TxHoldCount) && (port->role == RootPort) && port->helloWhen) return STP_hop_2_state (this, TRANSMIT_TCN); if (port->sendRSTP && port->newInfo && (port->txCount < TxHoldCount) && ((port->role == RootPort) || <---- (port->role == DesignatedPort))) return STP_hop_2_state (this, TRANSMIT_RSTP); break; states that a RSTP bpdu can be transmitted even throught a RootPort which, IMHO, is not correct... only topology change BPDU should be sent over the RootPort. That's why I suggest to remove the line with the arrow (<----). Comments? :) Ciao, Rodolfo -- GNU/Linux Solutions e-mail: giometti@xxxxxxxxxxxx Linux Device Driver giometti@xxxxxxxx Embedded Systems phone: +39 349 2432127 UNIX programming skype: rodolfo.giometti Freelance ICT Italia - Consulente ICT Italia - www.consulenti-ict.it _______________________________________________ Bridge mailing list Bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/bridge