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User plane capacity utility for sizing GTP-U Tunnel Endpoint Identifier (TEID) pools on LTE eNBs, S-GWs, and 5G gNBs/UPFs, preventing pool exhaustion under peak load.
GTP-U IP pool planners size address space for GGSN/UPF user-plane anchors from concurrent session forecasts plus failover headroom.
The sizer maps peak concurrent active UE count and average bearer count per UE to a total TEID demand, adding engineering headroom for burst allocation and reuse lag.
Built on 3GPP Technical Specifications, ensuring accuracy for production deployments and security audits.
Calculations specifically designed to identify protocol vulnerabilities and signaling misconfigurations.
TEID exhaustion causes bearer setup failures invisible to the UE. Critical for high-density nodes (dense urban gNBs, high-capacity S-GWs) processing millions of tunnels daily.
Edge-V8 Isolate
Technical Audit
< 50ms (Global)
Secured by Auth0
800k concurrent sessions with 20% spare ≈ 960k addresses → plan multiple /14–/16 style blocks across UPFs without overlap.
NAT, dual-stack, and fixed IP features change math—model each class.
Size from concurrent sessions (PDN/PDU) plus growth and fragmentation across UPF/GGSN anchors. Include spare for failover pull.
Often private with NAT on SGi/N6. Public pools are for specific services—plan separately from private session pools.
New attaches/sessions fail with allocation errors even when radio and core CPU look fine.
IPv4 CIDR boundary and host range calculation tool.
Estimate the cryptographic resistance and brute-force complexity of mobile encryption algorithms.
Calculate the composition and signaling footprint of 3GPP authentication vectors across generations.
Master Modern Telecom Network Attacks & Defense
Go beyond calculations. Access the TelcoSec Academy sandbox to practice real-world SS7 firewall bypass simulations, Diameter exploit analysis, and RAN security hardening.
SSO Link: Academy Node 0x93FF