OT Network Monitoring Solutions
Minimize Downtime, Maximize Security
Keep your network running smoothly with total visibility, real-time threat protection, and effortless compliance.

Robust OT Network Monitoring for
Give Your Network the Power to Perform
- 100% Visibility
- Spot every threat and address every vulnerability to keep your network secure and operational.

- 24/7 Availability
- Filter, aggregate, and balance traffic effortlessly to maintain peak network performance.

- Designed for OT
- Accurately monitor industrial network traffic with OT-specific protocols including Modbus and DNP3.
- Ready in Minutes
- Experience fast, error-free deployment and configuration with our intuitive Drag-N-Vu software.

Hybrid Network TAP and Packet Broker
Monitor complex, multi-site OT networks from one location. Working silently in the background, our SmartNA-XL range of OT network monitoring solutions provide total traffic visibility without hindering performance.
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Supports speeds of up to 40Gbps
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Zero latency
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Durable and compact 1-2RU chassis
Reliable Network Bypass TAPs
Maintain consistent network performance – day in, day out. Quick to deploy and easy to use, our bypass TAPs continuously monitor your inline appliances, circumventing inactive or compromised ones to keep traffic flowing and your network secure.
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Multiple layers of resiliency
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Advanced packet filtering
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Compatible with major network monitoring and security tools


Unhackable Network Security
Strengthen your first line of defense. Built on the zero-trust framework and invisible to intruders, INVIKTUSTM network security analyzes and validates traffic to protect your network against breaches.
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Invisible and unhackable
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Customizable policy-based filtering
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Doesn’t affect network speed
What Our Customers Say
“We base our deployment on NIST best practices. Using specialized tools to secure our infrastructure and maintain information privacy, our network remains in line with accepted standards. The Network Critical platform allows us to connect all the right tools while maintaining the highest level of reliability.”
US Government
Data Management Systems Analyst
“Network tools like the Network Critical SmartNA-XL enables the State to maintain the quality of service (QoS) and quality of experience (QoE) of our unified communications (UC) network.”
State of Maryland
UC Platform Manager
“Our network requires connection of seven different security and monitoring tools on critical links to comply with FISMA regulations. We can’t put all these tools on every link. Network Critical TAPs allow us combine links and help us stay within our budget.”
US Government
Information Technology Specialist
"Continuous monitoring is critical to digitization and automation of our many monitoring systems. Being able to monitor remote sites from a single location keeps our systems up to date without having a large staff running around in trucks."

BP
Senior Project Manager, Refining Operations
“Our network requires connection of seven different security and monitoring tools on critical links to comply with FISMA regulations. We can’t put all these tools on every link. Network Critical TAPs allow us combine links and help us stay within our budget.”
US Government
Information Technology Specialist
"I’m delighted to say the use of Network Critical’s TAPs across the multiple rigs, has helped us to complete all our first flight test objectives on schedule, whilst at the same time offering us the additional capability to resolve some of the inherent limitations of layer 2 switches."

Airbus
System Test Lead Engineer
Proud to Partner With
Find Network TAPs That Work for You
Product
SmartNA
SmartNA-XL
SmartNA
SmartNA-XL
Height in Rack Units (RU)
1-2RU
1RU
Width
19"
19"
AC Redundant Power Supply (Hot Swappable)
DC Redundant Power Supply (Hot Swappable)
Hot Swappable Cooling Fans
SmartNA
SmartNA-XL
Maximum Visibility (Bi-directional)
1,700Mbps
480Gbps
SmartNA
SmartNA-XL
Physical Interfaces
17
2 x QSFP / 20 x SFP+
(Numbers show maximum physical interface, but these cannot be used all together at once.)
Max. Number of 1GB Ports
17
20
Max. Number of 10GB Ports
20
Max. Number of 40GB Ports
2
SmartNA
SmartNA-XL
10/100/1000BASE-T Copper Port
1Gb SFP Port
10Gb SFP+ Port
25Gb SFP28 Port
40Gb QSFP+ Port
10/100/1000BASE-T Copper TAP
1Gb/10Gb Fiber TAP
SmartNA
SmartNA-XL
1G Optical
1G Bypass Copper
1G Bypass Optical
10G Bypass Optical (This is with the 10G V-Line Module)
SmartNA
SmartNA-XL
10/100/1000BASE-T CopperPhysical Bypass Protection
1Gb Fiber Active BypassProtection
10Gb Fiber Active BypassProtection (Also available in 40G and 100G)
User Defined Bit-level Filtering
Traffic Aggregation
Traffic Distribution
FCC/CE Certified
SmartNA
SmartNA-XL
Layer 2-4 Packet Filtering
Application Session Filtering
Persistent Load Balancing
Static Load Balancing
Header Stripping
Tunneling/De-Tunneling
Packet Slicing
Payload Masking
Source Port Labeling
SmartNA
SmartNA-XL
RESTful API
Role Based User Accounts
Multiple Levels of UserAccount
SNMP Traps
Event Monitoring and Alarm
Generation
Link Status Trap
Traffic Statistic/Counter in Each Port
WebUI (HTML5) for System Access
CLI Configuration andManagement
GUI Configuration andManagement
SNMP v2c & 3 Support
Authentication & Authorisation TACACS+
Discuss Your Requirements
Whatever comes your way, keep your network operational with Network Critical.