qosruledel <netifname> <rule sequence num>

[root@sylixos:/root]# help qosruledel     
del a rule from QoS.
qosruledel [netifname] [rule sequence num]
[root@sylixos:/root]# 

[root@sylixos:/root]# qosruledel en1 0
[root@sylixos:/root]# qoss
NETIF ATTACH SEQNUM RULE CMP_METHOD PRIO DONT_DROP IPs                IPe                PORTs  PORTe

QoS State: off