NTLFlow

No.	Feature Name	Description
1	Flow ID	Unique identifier for the network flow (flow key)
2	IP Source	The IP address of the source node
3	Source Port	The port number used by the source in the network flow
4	IP Destination	The IP address of the destination node
5	Destination Port	The port number used by the destination in the network flow
6	Protocol	The protocol used in the flow (e.g., TCP, UDP)
7	Flow Duration	Total duration of the flow in microseconds
8	Total Packet Count	Sum of forward and backward packet counts
9	Forward Packet Count	Number of packets sent from source to destination
10	Backward Packet Count	Number of packets sent from destination to source
11	Total Packet Length	Sum of packet lengths in the flow (in bytes)
12	Forward Total Packet Length	Total length of packets in the forward direction (in bytes)
13	Backward Total Packet Length	Total length of packets in the backward direction (in bytes)
14	Maximum Packet Length in Flow	Maximum packet length observed in the flow
15	Minimum Packet Length in Flow	Minimum packet length observed in the flow
16	Mean Packet Length in Flow	Average packet length over the flow
17	Standard Deviation of Packet Length in Flow	Standard deviation of packet lengths in the flow
18	Variance of Packet Length in Flow	Variance of packet lengths in the flow
19	Maximum Packet Length Forward Direction	Maximum packet length in the forward direction
20	Minimum Packet Length Forward Direction	Minimum packet length in the forward direction
21	Mean Packet Length Forward Direction	Average packet length in the forward direction
22	Standard Deviation of Packet Length Forward Direction	Standard deviation of packet lengths in the forward direction
23	Variance of Packet Length Forward Direction	Variance of packet lengths in the forward direction
24	Maximum Packet Length Backward Direction	Maximum packet length in the backward direction
25	Minimum Packet Length Backward Direction	Minimum packet length in the backward direction
26	Mean Packet Length Backward Direction	Average packet length in the backward direction
27	Standard Deviation of Packet Length Backward Direction	Standard deviation of packet lengths in the backward direction
28	Variance of Packet Length Backward Direction	Variance of packet lengths in the backward direction
29	Total Header Length	Sum of header lengths for the flow (in bytes)
30	Maximum Header Length in Flow	Maximum header length observed in the flow
31	Minimum Header Length in Flow	Minimum header length observed in the flow
32	Mean Header Length in Flow	Average header length in the flow
33	Standard Deviation of Header Length in Flow	Standard deviation of header lengths in the flow
34	Forward Total Header Length	Total header length in the forward direction
35	Maximum Header Length Forward Direction	Maximum header length in the forward direction
36	Minimum Header Length Forward Direction	Minimum header length in the forward direction
37	Mean Header Length Forward Direction	Average header length in the forward direction
38	Standard Deviation of Header Length Forward Direction	Standard deviation of header lengths in the forward direction
39	Backward Total Header Length	Total header length in the backward direction
40	Maximum Header Length Backward Direction	Maximum header length in the backward direction
41	Minimum Header Length Backward Direction	Minimum header length in the backward direction
42	Mean Header Length Backward Direction	Average header length in the backward direction
43	Standard Deviation of Header Length Backward Direction	Standard deviation of header lengths in the backward direction
44	Forward Segment Length Mean	Mean segment length in the forward direction
45	Backward Segment Length Mean	Mean segment length in the backward direction
46	Flow Segment Length Mean	Mean segment length for the entire flow
47	Initial Window Size in Forward Direction	Initial window size used in the forward direction for flow control
48	Initial Window Size in Backward Direction	Initial window size used in the backward direction for flow control
49	Minimum Active Duration	Minimum duration of active (non-idle) periods in the flow
50	Maximum Active Duration	Maximum duration of active periods in the flow
51	Mean Active Duration	Average active duration in the flow
52	Standard Deviation of Active Duration	Standard deviation of active durations in the flow
53	Minimum Idle Duration	Minimum idle period duration in the flow
54	Maximum Idle Duration	Maximum idle period duration in the flow
55	Mean Idle Duration	Average idle period duration in the flow
56	Standard Deviation of Idle Duration	Standard deviation of idle durations in the flow
57	Bytes per Second (Total)	Total data transfer rate (bytes per second) for the flow
58	Bytes per Second (Forward)	Data transfer rate in the forward direction (bytes per second)
59	Bytes per Second (Backward)	Data transfer rate in the backward direction (bytes per second)
60	Packets per Second (Total)	Total packet rate (packets per second) for the flow
61	Packets per Second (Backward)	Packet rate in the backward direction (packets per second)
62	Packets per Second (Forward)	Packet rate in the forward direction (packets per second)
63	Down/Up Ratio	Ratio of downstream to upstream traffic
64	Forward Bytes (Bulk Transfer)	Total bytes transferred in bulk in the forward direction
65	Forward Packets (Bulk Transfer)	Total packets transferred in bulk in the forward direction
66	Forward Bulk Rate	Bulk data transfer rate in the forward direction
67	Backward Bytes (Bulk Transfer)	Total bytes transferred in bulk in the backward direction
68	Backward Packets (Bulk Transfer)	Total packets transferred in bulk in the backward direction
69	Backward Bulk Rate	Bulk data transfer rate in the backward direction
70	Forward Bulk State Count	Number of bulk transfer states in the forward direction
71	Forward Bulk Size Total	Total size of bulk transfers in the forward direction
72	Forward Bulk Packet Count	Total number of packets in forward bulk transfers
73	Forward Bulk Duration	Total duration of bulk transfers in the forward direction
74	Backward Bulk State Count	Number of bulk transfer states in the backward direction
75	Backward Bulk Size Total	Total size of bulk transfers in the backward direction
76	Backward Bulk Packet Count	Total number of packets in backward bulk transfers
77	Backward Bulk Duration	Total duration of bulk transfers in the backward direction
78	Total FIN Flag Count	Combined FIN flag count from both directions
79	Total PSH Flag Count	Combined PSH flag count from both directions
80	Total URG Flag Count	Combined URG flag count from both directions
81	Total ECE Flag Count	Combined ECE flag count from both directions
82	Total SYN Flag Count	Combined SYN flag count from both directions
83	Total ACK Flag Count	Combined ACK flag count from both directions
84	Total CWE Flag Count	Combined CWE flag count from both directions
85	Total RST Flag Count	Combined RST flag count from both directions
86	Forward FIN Flag Count	FIN flag count in the forward direction
87	Forward PSH Flag Count	PSH flag count in the forward direction
88	Forward URG Flag Count	URG flag count in the forward direction
89	Forward ECE Flag Count	ECE flag count in the forward direction
90	Forward SYN Flag Count	SYN flag count in the forward direction
91	Forward ACK Flag Count	ACK flag count in the forward direction
92	Forward CWE Flag Count	CWE flag count in the forward direction
93	Forward RST Flag Count	RST flag count in the forward direction
94	Backward FIN Flag Count	FIN flag count in the backward direction
95	Backward PSH Flag Count	PSH flag count in the backward direction
96	Backward URG Flag Count	URG flag count in the backward direction
97	Backward ECE Flag Count	ECE flag count in the backward direction
98	Backward SYN Flag Count	SYN flag count in the backward direction
99	Backward ACK Flag Count	ACK flag count in the backward direction
100	Backward CWE Flag Count	CWE flag count in the backward direction
101	Backward RST Flag Count	RST flag count in the backward direction
102	Mean Inter-Arrival Time (IAT)	Average time between packet arrivals over the flow
103	Standard Deviation of IAT	Standard deviation of packet inter-arrival times
104	Maximum IAT	Maximum time gap between packet arrivals in the flow
105	Minimum IAT	Minimum time gap between packet arrivals in the flow
106	Total IAT (Forward + Backward)	Combined inter-arrival time for both directions
107	Mean IAT Forward Direction	Average inter-arrival time for packets in the forward direction
108	Standard Deviation of IAT Forward Direction	Standard deviation of inter-arrival times in the forward direction
109	Maximum IAT Forward Direction	Maximum inter-arrival time in the forward direction
110	Minimum IAT Forward Direction	Minimum inter-arrival time in the forward direction
111	Total IAT Forward Direction	Total inter-arrival time for the forward direction
112	Mean IAT Backward Direction	Average inter-arrival time for packets in the backward direction
113	Standard Deviation of IAT Backward Direction	Standard deviation of inter-arrival times in the backward direction
114	Maximum IAT Backward Direction	Maximum inter-arrival time in the backward direction
115	Minimum IAT Backward Direction	Minimum inter-arrival time in the backward direction
116	Total IAT Backward Direction	Total inter-arrival time for the backward direction
117	Sub-Flow Forward Packets	Number of packets in the forward sub-flow
118	Sub-Flow Backward Packets	Number of packets in the backward sub-flow
119	Sub-Flow Forward Bytes	Total bytes in the forward sub-flow
120	Sub-Flow Backward Bytes	Total bytes in the backward sub-flow