AWS Shield vs NETSCOUT Arbor Sightline Mobile: Side-by-Side Comparison (2026)

Short answer

Teams already deep in AWS who need Layer 3/4 DDoS protection without adding vendors should start with AWS Shield Standard, which covers all customers automatically at no cost. The free tier blocks the majority of common volumetric attacks; Shield Advanced adds behavioral analysis and AWS WAF integration for $3,000 annually, meaningful only if you're absorbing sustained multi-Gbps floods regularly. This is not a replacement for application-layer DDoS mitigation or a choice for organizations running multi-cloud infrastructure where you need consistency across providers. Enterprise mobile operators and carriers managing 4G/5G infrastructure need NETSCOUT Arbor Sightline Mobile because it catches DDoS and botnet activity in the data plane before it degrades subscriber experience, which endpoint tools simply cannot do. The platform monitors both user-plane and control-plane traffic simultaneously, giving you visibility into compromised devices and routing anomalies that traditional network security misses. Skip this if your organization runs a small private LTE network or lacks the NOC staffing to act on real-time traffic intelligence; the tool assumes mature operational discipline and 24/7 monitoring capability.

Based on our analysis of core features, company size fit, deployment model, here is our conclusion: