Traffic Levels Reach Extreme Peaks
Attack traffic peaked near 6 terabits per second during the campaign. Monitoring firms ranked the event among the four largest DDoS attacks ever recorded on distributed systems. Significantly, the scale matched historic attacks seen on major cloud providers. Network data showed normal transaction behaviour despite the pressure. Average confirmation times stayed around 450 milliseconds. Moreover, the longest confirmations did not exceed 700 milliseconds.
Validators continued producing blocks on schedule during the attack. Slot delays remained within zero to one slot across the period. Consequently, users experienced no visible disruptions. Analysts had expected congestion, missed slots, and delayed confirmations. However, the network handled the incoming traffic without those issues. Additionally, block finality remained consistent throughout the week.
Similar DDoS incidents previously targeted Google Cloud, AWS, and Microsoft Azure. Those attacks ranged from 2 terabits per second to over 40 terabits per second. Hence, Solana’s resistance placed it within comparable stress conditions. By contrast, the Sui network reported block delays during a DDoS incident earlier this week. That event slowed transaction processing and block generation. Moreover, the difference highlighted varying resilience levels across networks.
Past Solana Issues Recalled
Solana faced stability problems during traffic surges in 2022. Those incidents caused temporary outages and raised concerns over reliability. However, current performance showed a different outcome. Other blockchains have also encountered DDoS activity. Cardano reported attempts last year that targeted specific blocks rather than the mainnet. Additionally, those attacks failed to cause major disruptions.
Validator participation on Solana has declined over several years. Active validators reportedly fell from over 2,500 to under 1,000. Consequently, analysts continue monitoring decentralization metrics. The Solana community approved a major network upgrade in September. That update aimed to improve speed and efficiency. Moreover, developers implemented changes following extensive testing.
The December attack highlighted Solana’s ability to sustain heavy traffic without downtime. Network metrics remained stable despite sustained pressure.
