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. 2025 Feb 26;12:338. doi: 10.1038/s41597-025-04603-x

Table 2.

Detailed description of time series metrics.

Column name Description
id_time Unique identifier for each aggregation interval within the time series, used to segment the dataset into specific time periods for analysis.
n_flows Total number of flows observed in the aggregation interval, indicating the volume of distinct sessions or connections for the IP address.
n_packets Total number of packets transmitted during the aggregation interval, reflecting the packet-level traffic volume for the IP address.
n_bytes Total number of bytes transmitted during the aggregation interval, representing the data volume for the IP address.
n_dest_ip Number of unique destination IP addresses contacted by the IP address during the aggregation interval, showing the diversity of endpoints reached.
n_dest_asn Number of unique destination Autonomous System Numbers (ASNs) contacted by the IP address during the aggregation interval, indicating the diversity of networks reached.
n_dest_port Number of unique destination transport layer ports contacted by the IP address during the aggregation interval, representing the variety of services accessed.
tcp_udp_ratio_packets Ratio of packets sent using TCP versus UDP by the IP address during the aggregation interval, providing insight into the transport protocol usage pattern. This metric belongs to the interval <0, 1> where 1 is when all packets are sent over TCP, and 0 is when all packets are sent over UDP.
tcp_udp_ratio_bytes Ratio of bytes sent using TCP versus UDP by the IP address during the aggregation interval, highlighting the data volume distribution between protocols. This metric belongs to the interval <0, 1> with same rule as tcp_udp_ratio_packets
dir_ratio_packets Ratio of packet directions (inbound versus outbound) for the IP address during the aggregation interval, indicating the balance of traffic flow directions. This metric belongs to the interval <0, 1>, where 1 is when all packets are sent in the outgoing direction from the monitored IP address, and 0 is when all packets are sent in the incoming direction to the monitored IP address.
dir_ratio_bytes Ratio of byte directions (inbound versus outbound) for the IP address during the aggregation interval, showing the data volume distribution in traffic flows. This metric belongs to the interval <0, 1> with the same rule as dir_ratio_packets.
avg_duration Average duration of IP flows for the IP address during the aggregation interval, measuring the typical session length.
avg_ttl Average Time To Live (TTL) of IP flows for the IP address during the aggregation interval, providing insight into the lifespan of packets.