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| Feature name | Description |
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| fl_dur | Flow duration |
| tot_fw_pk | Total packets in the forward direction |
| tot_bw_pk | Total packets in the backward direction |
| tot_l_fw_pkt | Total size of the packet in the forward direction |
| fw_pkt_l_max | Maximum size of the packet in the forward direction |
| fw_pkt_l_min | Minimum size of the packet in the forward direction |
| fw_pkt_l_avg | Average size of the packet in the forward direction |
| fw_pkt_l_std | Standard deviation size of the packet in the forward direction |
| Bw_pkt_l_max | Maximum size of the packet in the backward direction |
| Bw_pkt_l_min | Minimum size of the packet in the backward direction |
| Bw_pkt_l_avg | Mean size of the packet in the backward direction |
| Bw_pkt_l_std | Standard deviation size of the packet in the backward direction |
| fl_byt_s | Flow byte rate that is the number of packets transferred per second |
| fl_pkt_s | Flow packets rate that is the number of packets transferred per second |
| fl_iat_avg | Average time between two flows |
| fl_iat_std | Standard deviation time two flows |
| fl_iat_max | Maximum time between two flows |
| fl_iat_min | Minimum time between two flows |
| fw_iat_tot | Total time between two packets sent in the forward direction |
| fw_iat_avg | Mean time between two packets sent in the forward direction |
| fw_iat_std | Standard deviation time between two packets sent in the forward direction |
| fw_iat_max | Maximum time between two packets sent in the forward direction |
| fw_iat_min | Minimum time between two packets sent in the forward direction |
| bw_iat_tot | Total time between two packets sent in the backward direction |
| bw_iat_avg | Mean time between two packets sent in the backward direction |
| bw_iat_std | Standard deviation time between two packets sent in the backward direction |
| bw_iat_max | Maximum time between two packets sent in the backward direction |
| bw_iat_min | Minimum time between two packets sent in the backward direction |
| fw_psh_flag | Number of times the PSH flag was set in packets travelling in the forward direction (0 for UDP) |
| bw_psh_flag | Number of times the PSH flag was set in packets travelling in the backward direction (0 for UDP) |
| fw_urg_flag | Number of times the URG flag was set in packets travelling in the forward direction (0 for UDP) |
| bw_urg_flag | Number of times the URG flag was set in packets travelling in the backward direction (0 for UDP) |
| fw_hdr_len | Total bytes used for headers in the forward direction |
| bw_hdr_len | Total bytes used for headers in the forward direction |
| fw_pkt_s | Number of forward packets per second |
| bw_pkt_s | Number of backward packets per second |
| pkt_len_min | Minimum length of a flow |
| pkt_len_max | Maximum length of a flow |
| pkt_len_avg | Mean length of a flow |
| pkt_len_std | Standard deviation length of a flow |
| pkt_len_va | Minimum interarrival time of the packet |
| fin_cnt | Number of packets with FIN |
| syn_cnt | Number of packets with SYN |
| rst_cnt | Number of packets with RST |
| pst_cnt | Number of packets with PUSH |
| ack_cnt | Number of packets with ACK |
| urg_cnt | Number of packets with URG |
| cwe_cnt | Number of packets with CWE |
| ece_cnt | Number of packets with ECE |
| down_up_ratio | Download and upload ratio |
| pkt_size_avg | Average size of packet |
| fw_seg_avg | Average size observed in the forward direction |
| bw_seg_avg | Average size observed in the backward direction |
| fw_byt_blk_avg | Average number of bytes bulk rate in the forward direction |
| fw_pkt_blk_avg | Average number of packets bulk rate in the forward direction |
| fw_blk_rate_avg | Average number of bulk rate in the forward direction |
| bw_byt_blk_avg | Average number of bytes bulk rate in the backward direction |
| bw_pkt_blk_avg | Average number of packets bulk rate in the backward direction |
| bw_blk_rate_avg | Average number of bulk rate in the backward direction |
| subfl_fw_pk | The average number of packets in a subflow in the forward direction |
| subfl_fw_byt | The average number of bytes in a subflow in the forward direction |
| subfl_bw_pkt | The average number of packets in a subflow in the backward direction |
| subfl_bw_byt | The average number of bytes in a subflow in the backward direction |
| fw_win_byt | Number of bytes sent in initial window in the forward direction |
| bw_win_byt | # of bytes sent in initial window in the backward direction |
| Fw_act_pkt | # of packets with at least 1 byte of TCP data payload in the forward direction |
| fw_seg_min | Minimum segment size observed in the forward direction |
| atv_avg | Mean time a flow was active before becoming idle |
| atv_std | Standard deviation time a flow was active before becoming idle |
| atv_max | Maximum time a flow was active before becoming idle |
| atv_min | Minimum time a flow was active before becoming idle |
| idl_avg | Mean time a flow was idle before becoming active |
| idl_std | Standard deviation time a flow was idle before becoming active |
| idl_max | Maximum time a flow was idle before becoming active |
| idl_min | Minimum time a flow was idle before becoming active |
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