Traffic Baselining

Traffic baselining is the process of building a statistical model of normal network traffic over time so that deviations can be flagged as potential incidents. Baselines may be built per peer, per protocol, per subscriber segment, or per tenant, and underpin network anomaly detection, capacity planning, and DDoS mitigation across both IT and signalling networks.

Categories: SignalingIdentity and SubscriberThreats and Attacks

Traffic Baselining in context

Signaling protocols carry the control-plane instructions that set up calls, register subscribers, hand over sessions and route SMS. SS7, Diameter, GTP-C and SIP are the four dominant families, and interconnect exposure of any of them is treated by GSMA FS.11 / FS.19 / FS.20 as a top-tier telecom risk.

Subscriber identifiers (IMSI, SUPI, MSISDN, IMEI) are the anchor for authentication, charging, lawful interception and fraud analytics. Any protocol or interface that leaks a permanent identifier is treated as a serious privacy defect, which is why 5G introduced SUCI concealment on the air interface.

To place Traffic Baselining in the wider telecom-security picture, review TMSI Reallocation, Anomaly Detection, Attack Surface Mapping, Behavioral Signaling Detection, Insider Threat and Roaming.

Related terms

Related topic hubs

  • SS7 Security SS7/MAP/CAP/SCCP attacks and defenses across 2G/3G interconnect.
  • Diameter Attacks S6a IDR/PUR/CLR abuse, subscriber tracking, LTE signaling attacks.
  • Signaling Firewall Unified SS7/Diameter/GTP/SMS signaling firewall framework.

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