ns-allinone-2.35/tcp/tcp-asym.cc
void TcpAsymAgent::recv_helper(Packet *pkt) 
{
	if (hdr_flags::access(pkt)->ce())
		ecn_to_echo_ = 1;
}
/* check if the received ack has an ECN that needs to be echoed back to the sink */
check if the received ack has an ECN that needs to be echoed back to the sink
check if the received ack has an ECN that needs to be echoed back to the sink
void TcpAsymAgent::recv_helper(Packet *pkt) 
{
	if (hdr_flags::access(pkt)->ce())
		ecn_to_echo_ = 1;
}
void TcpAsymAgent :: recv_helper ( Packet * pkt ) { if ( hdr_flags :: access ( pkt ) -> ce ( ) ) ecn_to_echo_ = 1 ; }
check if the received ack has an ECN that needs to be echoed back to the sink
check if the received ack has an ECN that needs to be echoed back to the sink