Airtel Case Study: How Advantal Helped Airtel Achieve Seamless IP Logging with High-Speed CG NAT Collector Deployment

Client Overview 

• Company Name: Bharti Airtel Ltd. 

• Industry: Telecommunications 

• Company Size: Large 

• Location: New Delhi, India 

• Services/Products: Mobile services, broadband, fixed-line telephony, DTH, and enterprise solutions 

Why this case study matters: 
Telecom operators face growing data demands but limited IPv4 availability. Thus, Carrier Grade NAT (CG NAT) has become essential. However, CG NAT complicates IP address logging for compliance and security. Airtel’s challenge was not unique—but solving it at scale, speed, and accuracy was. This case study highlights how Advantal delivered a powerful CG NAT Collector that solved Airtel’s critical IP tracking challenge without compromising network performance. 

The Challenge: Identifying the Pain Points 

Airtel was facing multiple operational and regulatory hurdles due to the lack of a centralized, high-speed CG NAT logging system: 

• Compliance Challenges: Due to NAT, thousands of subscribers shared a single public IP, making individual user tracking complex and essential for regulatory compliance (DoT, LEAs). 

• Massive Log Volume: The NAT system was generating over 25 million logs per day. 

• Delayed Log Processing: Existing tools were unable to process logs in near-real-time, leading to delays in investigations and reporting. 

• Performance Bottlenecks: Frequent slowdowns during log parsing due to the unoptimized legacy setup, affecting Airtel’s backend operations. 

• Scalability Issues: As traffic grew, the old solution could not scale without significant infrastructure cost and risk. 

The Solution: How Advantal Solved the Problem 

Advantal deployed a custom-built CG NAT Collector solution optimized for: 

• High-Speed Log Parsing & Storage: Capable of ingesting millions of NAT logs per hour. 

• Real-Time Searchability: Delivered a search engine that could trace a subscriber within seconds using IP, Port, and Timestamp. 

• Lightweight Architecture: Minimal resource usage for high performance. 

• Scalable Design: Easily integrates with new NAT devices and scales with traffic growth. 

• Compliance-Ready Format: Generated logs in DoT-recommended format and supported long-term storage. 

The solution was designed specifically for Airtel’s dynamic traffic environment with custom buffer tuning, indexing strategy, and parallel processing logic. 

Implementation Process

Phase 1 – Initial Assessment: 

• Mapped data flow across Airtel’s CG NAT systems. 

• Analyzed log format variations from different vendors. 

• Identified bottlenecks and compliance blind spots. 

Phase 2 – Solution Deployment: 

• Deployed Advantal’s CG NAT Collector on Airtel’s infrastructure. 

• Configured parsing rules to accommodate multi-vendor devices. 

• Integrated real-time dashboards for monitoring and traceability. 

Phase 3 – Optimization & Support: 

• Fine-tuned parsing engine to support peak-time surges. 

• Implemented automated alerts for missing or malformed logs. 

• Provided 24/7 maintenance with 99.9% uptime guarantee. 

The Results: Measurable Impact & Key Takeaways 

•  Faster Subscriber Traceability – From hours to under 5 seconds 

• 100% Compliance Readiness – Fully aligned with LEA and DoT regulations 

• Reduction in Manual Log Analysis – Automation saved hours of analyst time daily 

• Handled 30M+ Logs/Day – With zero lag or processing delay 

• Seamless Integration – Zero disruption to Airtel’s live operations 

Why It Matters: Key Learnings for Other Businesses 

This success story demonstrates how telecom operators can meet growing compliance and operational challenges with the right tools. 

• Speed and scale don’t need to compromise compliance. 

• Customized tech solutions outperform generic tools in mission-critical environments. 

• Advantal’s agile, purpose-built platform solved Airtel’s challenges—and it can solve yours too. 

Schedule a Free Demo to see how Advantal can help you achieve compliance, efficiency, and peace of mind at scale.