Best Network Visibility Tools

Arista Networks is an industry leader in data-driven, client to cloud networking for large data center/AI, campus and routing environments. Arista's award-winning platforms deliver availability, agility, automation, analytics and security through an advanced network operating stack.

Cato Networks offers NDR capabilities inside its SASE Cloud platform through Cato XDR and Network Stories. For NDR use cases, it analyzes north-south and east-west network telemetry, flow records, and packet-level signals to detect anomalies such as BGP session drops, blackouts, downed links, SLA degradation, and packet loss. Its differentiator is incident triage plus root-cause analysis from the same cloud data lake used for security analytics. It is best suited for organizations that want network operations and security teams working from one incident view, including providers building NOC-as-a-service offerings.

We put evidence at the heart of security.

Darktrace is a network detection and response vendor centered on self-learning behavioral analytics for north-south and east-west traffic. Its NDR product baselines normal activity for users, devices, and segments, then flags anomalous connections, command-and-control behavior, data transfer outliers, and other suspicious network patterns in on-premises, cloud, and hybrid environments. The platform is aimed at teams that need visibility beyond endpoint telemetry and want automated investigation and containment for network-level threats, including encrypted traffic and novel attack paths. Darktrace also sells adjacent security products, but this profile is limited to NDR capabilities.

enQase provides a quantum-safe security platform designed to transition organizations from classical to post-quantum cryptography (PQC). The platform unifies quantum resource orchestration, hardware-based entropy generation, and a software integration layer to ensure crypto-agility across the enterprise. It complements existing PKI infrastructures by adding quantum-resistant layers to protect long-lived sensitive data against harvest-now-decrypt-later attacks.

ExtraHop is an NDR vendor focused on inspecting east-west and north-south network traffic to detect suspicious activity, encrypted threats, and lateral movement. Its RevealX platform uses packet-level visibility, protocol decoding, and behavioral analytics to help SOC teams investigate incidents down to individual transactions without agents on endpoints. ExtraHop is well suited for enterprises that need forensic depth across hybrid and multi-cloud networks, especially where packet evidence and decrypted traffic are important for breach analysis and threat hunting. The vendor also offers adjacent network performance and IDS capabilities, but its NDR product is the core security use case.

Clearswift Secure Email Gateway is an enterprise email security gateway that inspects inbound and outbound mail for spam, malware, phishing, and data leakage before messages reach users or leave the organization. It is positioned as a deployment-flexible SEG for organizations that need on-premises, virtual appliance, or cloud delivery, and it is used by mid-market and enterprise buyers, including regulated sectors such as financial services, public sector, and defense. Its email scope is centered on threat prevention, content control, and outbound data protection rather than broader security platform functions.

The Gigamon AI-powered Deep Observability Pipeline efficiently delivers network-derived telemetry to cloud, security, and observability tools. Enriched with AI-driven insights, this telemetry helps organizations uncover previously hidden threats, identify and resolve performance issues, and close compliance gaps by validating ongoing adherence.

Hillstone Networks offers Network Detection and Response under its Breach Detection System (BDS) line for monitoring enterprise network traffic and identifying post-breach activity. In scope, it analyzes raw traffic, flow records, and packet data to detect anomalous east-west and north-south behavior using machine learning, rule matching, and threat-intelligence inputs. It is best suited for SOC teams that want network-centric detection with forensics and response tied to network infrastructure. Hillstone also sells adjacent XDR and firewall products, but those are separate from the NDR use case.

SonicWall is a partner-first unified cybersecurity portfolio that helps SMBs, MSPs, and IT teams, consolidate network, endpoint, cloud, and threat response across hybrid environments.

Vectra AI is a dedicated **Network Detection & Response (NDR)** vendor that analyzes east-west and north-south traffic to detect attacker behavior across on-premises, cloud, identity, and IoT/OT environments. Its NDR offering is positioned around behavioral analytics, attack-path correlation, and high-fidelity alert reduction rather than signature-only detection. It is best suited for security teams that need continuous network visibility, encrypted-traffic-aware detection, and faster triage of in-progress attacks. Vectra AI also sells adjacent identity and cloud detection capabilities, but its NDR scope remains centered on network telemetry and response.