1*a71a9546SAutomerger Merge WorkerThis allows you to match the ECN bits of the IPv4/IPv6 and TCP header. ECN is the Explicit Congestion Notification mechanism as specified in RFC3168 2*a71a9546SAutomerger Merge Worker.TP 3*a71a9546SAutomerger Merge Worker[\fB!\fP] \fB\-\-ecn\-tcp\-cwr\fP 4*a71a9546SAutomerger Merge WorkerThis matches if the TCP ECN CWR (Congestion Window Received) bit is set. 5*a71a9546SAutomerger Merge Worker.TP 6*a71a9546SAutomerger Merge Worker[\fB!\fP] \fB\-\-ecn\-tcp\-ece\fP 7*a71a9546SAutomerger Merge WorkerThis matches if the TCP ECN ECE (ECN Echo) bit is set. 8*a71a9546SAutomerger Merge Worker.TP 9*a71a9546SAutomerger Merge Worker[\fB!\fP] \fB\-\-ecn\-ip\-ect\fP \fInum\fP 10*a71a9546SAutomerger Merge WorkerThis matches a particular IPv4/IPv6 ECT (ECN-Capable Transport). You have to specify 11*a71a9546SAutomerger Merge Workera number between `0' and `3'. 12