Top 6 Bypass TAPs for Financial Services Networks in 2026

Financial services networks have no margin for monitoring-related downtime. Real-time payment processing, high-frequency trading, and core banking interconnects demand inline security tools that stay operational around the clock — and those tools introduce a risk: if an Intrusion Prevention System (IPS), firewall, or Web Application Firewall (WAF) fails, it can take the entire network link down with it.

Bypass TAPs (also known as bypass switches) eliminate this single point of failure. They sit between the network and inline security appliances, continuously monitoring appliance health via heartbeat signals and automatically rerouting traffic if a tool fails or requires maintenance.

Regulations including the Digital Operational Resilience Act (DORA), Markets in Financial Instruments Directive II (MiFID II), and the Payment Card Industry Data Security Standard (PCI-DSS) make continuous, uninterrupted monitoring a compliance requirement — not just an operational preference. This guide compares six verified bypass TAP vendors suited to the throughput, failover, and compliance requirements of financial services in 2026.

The Top 6 Bypass TAPs for Financial Services at a Glance

Vendor	Key Product	Max Speed	Key Strength
Network Critical	SmartNA-XL	Up to 40G	Hybrid bypass, TAP, and packet broker in one chassis
Garland Technology	EdgeSafe 100G	Up to 100G	Heartbeat visibility in failsafe mode; field-replaceable modules
Keysight Technologies	iBypass DUO / iBypass 100G	Up to 100G	Dual management interfaces; active-standby and active-active tool support
APCON	IntellaView Bypass TAP Blade	Up to 100G	Chassis-blade design; millisecond failover detection across six segments
Niagara Networks	3808E Hybrid Bypass Switch	Up to 100G	Carrier-grade sub-50ms failover; hybrid bypass and packet broker in 1RU
Gigamon	GigaVUE HC Series	Up to 100G	Inline bypass integrated with GigaVUE-FM fabric management

1. Network Critical — SmartNA-XL

Network Critical brings bypass protection, TAP access, and packet brokering together in a single platform — an architectural advantage that matters directly in financial services, where rack space is constrained and management overhead carries real operational cost. The SmartNA-XL is a modular 1RU hybrid platform supporting 1G, 10G, and 40G interfaces across copper, passive fiber, and bypass TAP modules. Its five hot-swappable module slots accept active copper bypass, fiber bypass, and passive fiber TAP modules in any combination, so teams can adapt the access layer without replacing the chassis or reconfiguring tool connections.

Bypass modules use heartbeat monitoring to continuously check inline appliance health. If a tool fails to return a heartbeat, traffic is automatically rerouted in real time — maintaining link continuity without human intervention. The platform supports active/standby tool configurations, enabling a secondary appliance to take over immediately when the primary fails. This is critical for financial institutions where a brief lapse in IPS or WAF coverage creates regulatory exposure under DORA and PCI-DSS.

The Drag-n-Vu graphical interface handles filter and port-map configuration without manual rule syntax, reducing the risk of misconfiguration during maintenance windows. Advanced compliance features — payload masking, header stripping, and packet slicing — are available alongside bypass operation, allowing teams to handle sensitive financial data flows confidently. For larger environments, the SmartNA-PortPlus scales from 48 to 194 ports across 1G to 100G, and the SmartNA-PortPlus HyperCore extends to 400G for core banking and high-frequency trading infrastructure.

Proven results:

• HSBC: SmartNA TAPs and passive fiber TAPs deployed globally from the UK to Hong Kong, achieving zero latency on monitoring technologies for real-time financial transaction visibility.
• Vodafone: 100% accurate traffic visibility on critical links, supporting continuous monitoring and European cross-border data compliance.
• Darktrace: SmartNA-PortPlus API integration enabled fully automated filtering and port-map reconfiguration driven by Darktrace's AI threat detection — with no manual intervention required.

2. Garland Technology — EdgeSafe Bypass TAP

Garland Technology builds bypass TAPs as a primary product line, and the EdgeSafe series reflects that focus. The EdgeSafe 100G is a modular bypass TAP supporting speeds up to 100G over fiber, with field-replaceable TAP modules and a configurable heartbeat mechanism for continuous inline appliance health monitoring. If a connected tool fails to respond, the EdgeSafe automatically bypasses it — and continues forwarding packets to the tool out-of-band, even in failsafe mode. This means the appliance retains visibility into traffic even when bypassed, shortening Mean Time to Recovery (MTTR) when it comes back online.

Garland's bypass portfolio spans both managed and unmanaged form factors, from portable DIP-switch-configured units to rack-mounted managed platforms with GUI support. The EdgeSafe 40G variant applies the same heartbeat architecture to lower-speed links, and both models support repurposing as breakout, aggregation, or regeneration TAPs — extending their utility across multiple deployment scenarios without additional hardware. The Mira Encrypted Traffic Orchestration (ETO) add-on integrates with EdgeSafe deployments to decrypt Transport Layer Security (TLS) 1.0 through 1.3 and SSHv2 traffic before it reaches inline tools, ensuring encrypted flows don't create blind spots in financial security stacks. TAA-compliant product options are available for institutions subject to US government procurement requirements.

3. Keysight Technologies — iBypass DUO / iBypass 100G

Keysight Technologies applies its test equipment engineering background to bypass switch design, with documented financial services deployment experience: a multi-national financial services corporation used Keysight (then Ixia) visibility solutions to achieve high availability while upgrading its network security and monitoring infrastructure.

The iBypass 100G provides fail-safe inline protection across 100G fiber links, with support for redundant or serial active tool configurations from a single bypass. Teams can deploy multiple inline tools in active-standby or active-active architectures without adding additional bypass hardware — a meaningful reduction in rack footprint and management complexity for dense financial data centers. The iBypass DUO extends this with two independent management interfaces and two power fail options, giving teams separate management paths for resilience in environments where a single management interface represents an unacceptable dependency.

Both models support deployment standalone or in combination with a Keysight network packet broker. Keysight's GUI is consistently cited as a differentiator for complex multi-tool topologies that are difficult to configure on competing platforms. The broader Keysight visibility portfolio integrates through the Vision ONE platform for centralized management across bypass switches, TAPs, and packet brokers.

4. APCON — IntellaView Bypass TAP Blade

APCON delivers bypass protection through a chassis-blade architecture, with the IntellaView Bypass TAP Blade sitting inside the IntellaView modular chassis alongside packet processing and filtering blades. Each blade supports six 10G, 25G, 40G, or 100G bypass segments, allowing teams to protect multiple inline security tools from a single chassis slot. Heartbeat and link state monitoring detect tool failures in milliseconds, triggering automatic failover and failback — and when a failed tool recovers, the blade returns traffic to it automatically without manual intervention.

A Load Balance Group (LBG) on the bypass blade enables active-active tool redundancy, distributing traffic across two identical security appliances. If one fails, the other absorbs the full load while the failed unit is repaired — a configuration that suits financial institutions running high-availability security stacks where any gap in inspection coverage creates compliance exposure. The blade also supports traffic filtering, allowing teams to send a relevant subset of traffic to each inline tool rather than forwarding all flows indiscriminately, which reduces processing load on busy financial network links. APCON's IntellaFlex standalone bypass TAPs address deployments where a full chassis isn't required, covering copper 1G and optical 1G/10G links.

5. Niagara Networks — 3808E Hybrid Bypass Switch

Niagara Networks takes an all-in-one approach with the 3808E — a carrier-grade platform that combines inline bypass switching, active TAP functionality, and packet broker capabilities in a single 1RU chassis. The 3808E supports up to eight 1G/10G/25G/40G/100G bypass segments with sub-50ms failover engineered to telco-grade availability standards. Optical relays maintain traffic flow even if the 3808E itself loses power — a physical fail-safe guarantee that software-based approaches cannot replicate.

The hybrid design allows the 3808E to function simultaneously as a bypass switch for inline tools and as an active TAP feeding out-of-band monitoring and Security Information and Event Management (SIEM) platforms. This matters directly for financial institutions that need both inline threat prevention and continuous packet capture for audit and forensics — a combination that typically requires separate hardware from other vendors. Fail-closed and fail-open modes are configurable per segment, allowing risk tolerance to vary across different network zones. Inline service chains — firewall, IPS, SSL inspection, and Data Loss Prevention (DLP) in sequence — are fully supported, with the entire chain treated as a single protected segment.

The Niagara Visibility Controller (NVC) provides centralized policy automation and orchestration across multiple 3808E deployments, reducing management overhead in distributed financial data center architectures. Niagara designs and manufactures its visibility solutions in the USA.

6. Gigamon — GigaVUE HC Series Inline Bypass

Gigamon integrates inline bypass functionality directly into GigaVUE HC Series nodes through GigaVUE-OS, rather than as a standalone external device. This means bypass protection, traffic aggregation, filtering, and SSL/TLS decryption operate within the same platform — all managed through GigaVUE-FM fabric manager. Embedded fail-to-wire capability on GigaVUE HC Series nodes ensures traffic continues flowing if the chassis loses power or an inline appliance becomes unavailable.

Heartbeat pulses monitor inline tool health continuously. When a tool stops responding, the bypass mechanism activates automatically and traffic passes directly through the node without interruption. The integrated architecture suits large financial institutions already invested in Gigamon's Deep Observability Pipeline, where bypass protection, SSL decryption, and application-aware filtering are available within an existing platform without adding separate bypass hardware. GigaVUE Cloud Suite extends visibility management to AWS and Azure environments, which is relevant for financial institutions running hybrid cloud architectures alongside on-premises trading and payment infrastructure.

How to Choose a Bypass TAP for Your Financial Services Network

Map Your Link Speeds Before You Evaluate Hardware

Start with a complete inventory of the links you need to protect and the inline tools currently deployed on each. Bypass TAPs must match the exact line speed of the protected link — a 100G core banking interconnect requires a 100G bypass TAP, and an undersized device will introduce packet loss under full load. Check whether you're protecting copper or fiber links, and confirm that the bypass TAP supports the optics in use. Mixed-speed environments are common in financial data centers, where legacy 1G/10G distribution-layer links coexist with 40G and 100G core links. Modular platforms that accommodate multiple link speeds in a single chassis reduce both procurement cost and the operational overhead of managing separate devices.

Verify Failover Speed and Physical Fail-Safe Behavior

Failover time is not uniform across vendors. Sub-50ms failover is the benchmark for carrier-grade environments; some platforms operate faster. Equally important is what happens during a power failure to the bypass TAP itself. Optical relay-based designs maintain traffic flow with zero dependency on the TAP's power state — a physical guarantee that software-based controls cannot provide. Verify whether your chosen platform fails open or fails closed by default, and confirm this is configurable per segment to match your risk profile across different network zones.

Confirm Support for Compliance-Specific Traffic Handling

Your finance network visibility requirements under PCI-DSS, MiFID II, and DORA each impose technical obligations that not all bypass TAPs can meet. Look specifically for payload masking to prevent sensitive cardholder data reaching out-of-band monitoring tools, packet slicing to manage storage requirements on capture platforms, and accurate timestamping to support MiFID II audit log integrity. Map your regulatory obligations to specific platform capabilities before shortlisting vendors.

Evaluate Active/Standby and Service Chain Support

If your security architecture relies on tool redundancy — running two identical IPSs in active-standby, for example — confirm the bypass TAP supports this natively. Some platforms require additional hardware for redundant tool configurations that others handle within a single device. If you're running inline service chains, where traffic passes through multiple tools in sequence, confirm that the bypass platform can protect the entire chain as a single segment rather than requiring separate bypass devices for each tool. This has a direct impact on rack footprint, power consumption, and management complexity.

Consider Total Cost of Ownership Beyond Purchase Price

Hardware cost is rarely the dominant factor in bypass TAP decisions. Factor in rack space, power consumption, licensing for advanced features, and the cost of replacing infrastructure when link speeds or tool requirements change. Platforms that combine bypass TAP, active TAP, and packet broker functionality in a single chassis reduce both Capital Expenditure (CapEx) and Operational Expenditure (OpEx) compared to deploying separate devices. Modular, scale-out architectures that add capacity without requiring full replacement protect the initial investment as your network evolves.

Assess Vendor Support and Financial Services Track Record

Bypass TAPs sit on live financial network links. When something goes wrong, support response time matters. Look for vendors with demonstrable deployments in financial services or adjacent high-availability environments, documented failover performance data, and support programs that match your operational model. Financial institutions with 24/7 network operations centers need vendors that can match that availability with responsive technical support.

Frequently Asked Questions

What Is a Bypass TAP and Why Do Financial Networks Need One?

A bypass TAP is a hardware device that sits inline between a network link and a security appliance — such as a firewall, IPS, or WAF — and automatically reroutes traffic around the appliance if it fails or requires maintenance. Financial networks need bypass TAPs because inline security tools are single points of failure: without bypass protection, a tool failure or maintenance window takes down the network link entirely. DORA, PCI-DSS, and MiFID II each impose continuous monitoring and uptime requirements that make this protection a compliance necessity, not just an operational preference.

What Is the Difference Between a Bypass TAP and a Passive Network TAP?

A bypass TAP sits inline in the traffic path and actively manages the health of a connected inline security tool, rerouting traffic around it if the tool fails. A passive network TAP creates an out-of-band copy of traffic for monitoring tools without touching the live traffic path at all. Both are used in financial networks — passive TAPs for feeding Security Operations Center (SOC) monitoring and analytics tools, and bypass TAPs for protecting the inline security stack. Many modern platforms, including the Network Critical SmartNA-XL, combine both functions in a single chassis.

How Fast Does a Bypass TAP Need to Failover in a Financial Services Environment?

For most financial services environments, failover under 50ms is the operational benchmark, and carrier-grade platforms achieve this at the physical layer through optical relays. High-frequency trading environments are more demanding and may require sub-millisecond failover — in these cases, passive fiber TAPs on the monitoring path and optical relay-based bypass mechanisms are preferred because they operate at line speed with no processing dependency. Always request vendor-published failover specifications rather than relying on general claims.

Do Bypass TAPs Support Encrypted Traffic Inspection?

Some bypass TAP platforms include integrated or add-on TLS decryption, while others pass encrypted traffic directly to inline tools for decryption. Garland Technology's Mira ETO integration decrypts TLS 1.0 through 1.3 and SSHv2 traffic within the bypass architecture before it reaches inline tools. Gigamon's GigaVUE platform includes SSL/TLS decryption as an integrated function. If encrypted traffic inspection is a requirement — and under PCI-DSS it typically is — confirm whether decryption is native to the bypass platform or requires a separate appliance.

Can a Bypass TAP Protect Multiple Inline Tools on the Same Link?

Yes. Most enterprise-grade bypass TAPs support serial service chains, where traffic passes through multiple inline tools in sequence — for example, a Next-Generation Firewall (NGFW), followed by an IPS, followed by an SSL inspection appliance. The bypass TAP monitors the health of the entire chain and can be configured to bypass individual tools or the full chain depending on the failure scenario. Platforms including the Niagara 3808E and APCON IntellaView Bypass TAP Blade also support load balance groups for active-active tool redundancy across multiple appliances on the same segment.

How Do Bypass TAPs Support PCI-DSS Compliance?

Bypass TAPs support PCI-DSS compliance in two ways. First, they ensure the inline security tools required by PCI-DSS — firewalls, IPS, and intrusion detection systems — remain operational at all times by preventing tool failures from taking down network links. Second, advanced bypass platforms with payload masking and packet slicing capabilities allow sensitive cardholder data to be handled without exposing it to out-of-band monitoring tools that don't need to see it. Network Critical's SmartNA-XL supports payload masking, header stripping, and packet slicing as standard features available alongside bypass operation.

Protect Your Financial Network With Network Critical

Choosing the right bypass TAP for a financial services network comes down to three things: failover reliability at the physical layer, compliance-specific traffic handling, and the ability to scale as your security stack evolves. Network Critical's bypass TAP solutions deliver all three — combining hardware-enforced fail-safe protection with advanced features including payload masking, packet slicing, and header stripping that regulated financial institutions require. The hybrid TAP and packet broker architecture of the SmartNA-XL consolidates bypass protection, out-of-band monitoring access, and intelligent traffic management into a single chassis, reducing rack footprint and ongoing operational cost.

With over 25 years of deployment experience in financial services — including HSBC, where zero-latency monitoring was achieved across a global infrastructure spanning the UK to Hong Kong — Network Critical understands the uptime and compliance standards your network demands.

Speak to the Network Critical team to discuss your bypass TAP requirements or request a free network audit.