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Professional-grade signaling dimensioning tool for calculating Diameter interface throughput based on peak Transactions Per Second (TPS) and average message encapsulation.
Diameter bandwidth planning converts subscriber signaling events into peak TPS and approximate Mbps on EPC/5G Diameter interfaces so you can size DRA, firewalls, and interconnect links.
This calculator models Diameter traffic as a bi-directional flow. It sums the Diameter Base AVP sizes and adds the overhead for the selected transport stack (SCTP/TCP + IP + Ethernet) to derive the total link burden.
Built on 3GPP Technical Specifications, ensuring accuracy for production deployments and security audits.
Calculations specifically designed to identify protocol vulnerabilities and signaling misconfigurations.
Aligned with IETF RFC 6733 (Diameter Base) and 3GPP TS 29.212/29.272. Accounts for SCTP Multi-homing and IPsec ESP overhead.
Edge-V8 Isolate
Technical Audit
< 50ms (Global)
Secured by Auth0
2 million subscribers, 0.2 attaches/sub/busy-hour, ~6 Diameter messages per attach on S6a → on the order of ~670 msg/s base before retries and other interfaces. Add Gy CCR/CCA for online charging and the DRA peak can reach multiple thousand TPS.
Uses planning averages, not vendor-specific AVP dictionaries. Always calibrate with PCRF/OCS and HSS counters before freeze of BOM.
Start from attach/TAU/handover rates and online charging events per subscriber, multiply by messages per procedure (often request+answer pairs), then sum interface contributions (S6a, Gy/Ro, Gx, N7/N28 equivalents).
Average message size (AVP-heavy CCR/CCA, subscription profiles) and TLS overhead. A few large credit-control exchanges can dominate bytes even at moderate TPS.
No. Diameter bandwidth estimates interface traffic volume. DRA dimensioning sizes routing nodes for that TPS with redundancy and routing fan-out. Use both together.
Convert between ITU, ANSI, and other SS7 point code formats.
Interactive signaling flow generator for GTPv1/GTPv2 control plane procedures.
Optimize roaming costs and steering efficacy using Signaling and OTA methods.
Decode Advanced 5G & LTE Signaling Protocols
Bring the theory to life. Access visual call flows, 3GPP standards walkthroughs, and GTP-U tunnel optimization training designed for core network architects.
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