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Providing Out-of-Band Connectivity to Mission-Critical IT Resources

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Gruve: Delivering Mission-Critical AI Services with ZPE’s Out-of-Band Management Platform

by | Sep 12, 2025 | Case Studies, Consolidation, Failover Connectivity, Improve Network Security, Minimize Impact of Disruptions, Network Automation, Out of Band Management, Pillar 2 - Critical Remote, Remote Network Management, Streamline Deployments

Gruve Case Study – Mission-Critical AI Services

Gruve is a global AI services company, serving customers in Data Sciences, Cybersecurity, Customer Experience, and many other verticals. Their approach is simple: focus on the customer’s business, financial, and technical objectives, and tailor a solution that delivers measurable outcomes. To achieve this, Gruve has invested heavily in GPU clusters, high-speed cluster networks, and flash storage platforms.

The challenge for Gruve is operating this infrastructure. GPU disruptions or failures can have a cascading effect on training workloads and even jeopardize compliance. Resolving these issues with traditional solutions can take hours and require on-site human intervention. With strict SLAs in place, even minutes of downtime can have a significant impact on business.

Gruve required a solution that could help them react instantly as well as monitor their infrastructure in real time to perform proactive maintenance and management. Read the full case study below for full details on how Nodegrid and ZPE Cloud helped them:

  • Resolve connectivity and hardware issues in minutes without going on-site
  • Ensure ISO 27001 and SOC 2 compliance without service disruptions
  • Allow IT staff to focus on revenue-generating initiatives instead of maintenance visits

“We rely on ZPE Systems’ Nodegrid to help us leverage the value of our AI Cluster investments. The Nodegrid platform gives us full visibility and adaptability as we build new AI solutions for customers and partners.”  –  Matt Robinson, CTO, Gruve

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Why ISPs Need Out-of-Band Management (and Why Serial Consoles Still Matter)

by | Sep 12, 2025 | Consolidation, Failover Connectivity, Improve Network Security, Minimize Impact of Disruptions, Network Automation, Out of Band Management, Remote Network Management, Simplify Branch Infrastructure, Streamline Deployments

Picture this: It’s 2 a.m. and your core router crashes. Your NOC scrambles to respond, but your team has a big problem: the production network is down, so they can’t even reach the device. On top of downtime, you’re facing the potential for SLA breaches, penalties, and customer churn.

This scenario is inevitable for ISPs. But it doesn’t have to come with all the stress. This is where having a dedicated out-of-band (OOB) management strategy comes in. Here’s a look at why out-of-band is mission-critical for any size ISP, and why serial consoles still matter.

 

The ISP Management Paradox

ISPs live in a constant state of dependency: The network they’re responsible for managing is the same network they depend on for access. When that network goes down, so does their ability to fix it.

This paradox is why OOB management is more than a nice-to-have. Without a separate management plane, ISPs are forced to fly blind during outages, unable to access gear, troubleshoot, or recover services until technicians arrive on-site. That delay translates directly into lost revenue and frustrated customers.

 

Why Serial Consoles Still Matter

Some might argue that in today’s world of cloud-native networks and SDN, serial ports are a thing of the past. But there are a few big reasons why every ISP needs to take advantage of them:

  • Direct, low-level access: Serial consoles provide the most reliable way to recover a device, bypassing higher-level services that might be unavailable.
  • Protocol independence: Unlike SSH or web GUIs, serial access doesn’t depend on the production network stack. It just works.
  • Isolated recovery path: When everything else is down, serial consoles are still ready to help bring critical infrastructure back online.

For ISPs, ignoring serial consoles means ignoring the most battle-tested path to fast recovery.

 

OOB is More Than a Backup Connection

OOB is typically thought of as nothing more than a backup link. But that mindset undersells its value. Modern OOB is strategic. Sure, it helps maintain business continuity by providing a physically and logically separate management plane that stays operational even when production is down. But beyond recovery, OOB serves as a tool for everyday operations.

ISPs use OOB for routine maintenance, firmware upgrades, and configuration changes without touching the production network. It provides a safe, isolated path to test or roll back updates, push new templates, or stage infrastructure changes, all without risking service disruption. In other words, OOB isn’t just your parachute in an emergency, it’s also the workbench for keeping your network in top shape.

IMI per CISA

ZPE Systems’ out-of-band follows the best practice of Isolated Management Infrastructure (recommended by CISA BOD 23-02 for security), which gives administrators a dedicated environment to recover from disasters as well as perform routine changes.

Everyday uses of modern OOB:

  • Push or roll back configuration updates
  • Perform firmware and patch management
  • Grant temporary access to vendors without exposing the production network
  • Conduct compliance checks and audits in isolation
  • Test changes before pushing them into production

Imagine this: Your OOB network leverages LTE, 5G, or even Starlink to maintain secure connectivity to the NOC or ZPE Cloud. That path remains accessible even during an outage, an active cyberattack, or a rollback gone wrong. This OOB path guarantees management access during outages and for everyday ops, so engineers get uninterrupted access to fix devices, roll back to a golden image, etc.

Nodegrid with Starlink

ZPE’s Nodegrid devices can use 4G/5G or Starlink for remote access, with out-of-band networks that can be set up in less than an hour.

Out-of-Band Benefits for ISPs

The payoff for an ISP building a dedicated OOB network is huge:

  • Fast recovery times: Remediate instantly without waiting for truck rolls.
  • SLA compliance: Reduce downtime and meet customer expectations.
  • Secure access without risk: Manage gear without exposing the production network to threats or human errors.
  • Device consolidation: Nodegrid replaces six legacy management devices with one to simplify infrastructure.
  • Industry-leading security: Built-in protections that meet ISP-grade compliance needs.

Why Secure Out-of-Band Matters

OOB isn’t without risk. Traditional solutions may be improperly secured, which can open a backdoor into your most critical systems. But ZPE has built OOB with security at the core. Here are some built-in best practices that make Nodegrid the most secure out-of-band:

  • Isolation by design: Physical and logical separation prevents OOB from being a vulnerability.
  • Zero Trust enforcement: Role-based, least-privilege access ensures accountability and limits insider threats.
  • FIPS compliance: Validated encryption keeps data and commands secure to prevent interception.

Migrate With Zero Downtime Using This Guide

By combining classic serial access with modern OOB best practices, ISPs gain a recovery framework that’s both reliable and adaptable.

The easiest way to migrate is by deploying Nodegrid. This drop-in replacement integrates serial console access, secure OOB, and centralized management that are purpose-built for ISP environments. Download the migration guide now to bring industry-leading resilience to your ISP network.

Download Migration Guide

Lower Costs, Greater Resilience: Supporting Business Continuity For A Leading Asian Retailer

by | Sep 4, 2025 | Case Studies, Consolidation, Failover Connectivity, Improve Network Security, Network Automation, Out of Band Management, Pillar 2 - Critical Remote, Remote Network Management, Streamline Deployments

A leading retailer in Asia, who serves beauty and wellness products across the region, needed to address the growing complexity of their infrastructure. As they scaled, it became increasingly difficult to manage critical functions that edge sites relied on. This put business continuity in jeopardy and hindered their ability to quickly open new revenue-generating locations.

That’s when ByteBridge, one of ZPE’s trusted partners, proposed a solution only achievable by deploying Nodegrid. Read the full case study to see how this uniquely tailored management architecture delivered benefits like:

  • Streamlined ops: Monitoring, remote access, power management, and more from a single portal.
  • Lower TCO: Combined serial, Ethernet, 4G into one compact Nodegrid device.
  • Wireless resilience: Automatic cellular failover for continuity during primary internet outages.
ZPE Systems – ByteBridge and ZPE case study
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When Every Branch Matters: How a Credit Union Reinforced Network Resilience

by | Jul 25, 2025 | Case Studies, Consolidation, Failover Connectivity, Improve Network Security, Network Automation, Out of Band Management, Pillar 2 - Critical Remote, Remote Network Management, Streamline Deployments

When Every Branch Matters: How a Credit Union Reinforced Network Resilience

For many credit unions, digital transformation has expanded well beyond core banking systems. They depend on resilient IT infrastructure for everything from interactive teller machines, to cloud-hosted apps and remote employee access. But for their IT teams, this brings a growing list of challenges: more branches, more network equipment, and more pressure to minimize downtime. And often, they need to solve these challenges without adding staff.

That’s where the cracks begin to show.

One mid-sized U.S. credit union faced a similar dilemma. They had to support more than 200 branch locations, but with only two IT staff. Routine network issues meant spending hours in the car, sometimes just to power cycle a device. Troubleshooting tasks or regular firmware updates easily consumed entire workdays. Combating outages was even worse because they lacked a reliable management path outside of the primary network. Long outages meant long workdays and lots of stress, not to mention the customer-facing issues like lost trust and reputation damage.

But instead of patching the problem, they made a bold move.

They adopted Nodegrid and ZPE Cloud, the out-of-band management solution that enables complete visibility and control, even when the main network fails. For the credit union’s IT team, this enabled them to perform all their jobs – from provisioning to troubleshooting, to device reboots – via remote session. The results? Drastically reduced travel costs, faster incident response times, and peace of mind knowing that every branch was protected by a resilient management backbone.

Download the full case study to see how they transformed their branch operations and set the foundation for secure, scalable growth.

Credit Union case study thumbnail
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Why Gen 3 Out-of-Band Is Your Strategic Weapon in 2025

by | May 23, 2025 | Application Hosting, Consolidation, Data Center Management, Data Center Resilience, DevOps, Edge Computing, Failover Connectivity, Improve Network Security, Increase Productivity, Micro-segmentation, Minimize Impact of Disruptions, Modernize Legacy Environments, Monitoring & Reporting, Network Automation, Out of Band Management, Power Management, Remote Network Management, Scripting, Serial Consoles, Simplify Branch Infrastructure, Streamline Deployments, Vendor Neutral Platform, Virtualization, Zero Touch Provisioning (ZTP), Zero Trust Security

Mike Sale – Why Gen 3 Out-of-Band is Your Strategic Weapon

I think it’s time to revisit the old school way of thinking about managing and securing IT infrastructure. The legacy use case for OOB is outdated. For the past decade, most IT teams have viewed out-of-band (OOB) as a last resort; an insurance policy for when something goes wrong. That mindset made sense when OOB technology was focused on connecting you to a switch or router.

Technology and the role of IT have changed so much in the last few years. There’s a lot more pressure on IT folks these days! But we get it, and that’s why ZPE’s OOB platform has changed to help you.

At a minimum, you have to ensure system endpoints are hardened against attacks, patch and update regularly, back up and restore critical systems, and be prepared to isolate compromised networks. In other words, you have to make sure those complicated hybrid environments don’t go off the rails and cost your company money. OOB for the “just-in-case” scenario doesn’t cut it anymore, and treating it that way is a huge missed opportunity.

Don’t Be Reactive. Be Resilient By Design.

Some OOB vendors claim they have the solution to get you through installation day, doomsday, and everyday ops. But if I’m candid, ZPE is the only vendor who can live up to this standard.   We do what no one else can do! Our work with the world’s largest, most well-known hyperscale and tech companies proves our architecture and design principles.

This Gen 3 out-of-band (aka Isolated Management Infrastructure) is about staying in control no matter what gets thrown at you.

OOB Has A New Job Description

Out-of-band is evolving because of today’s radically different network demands:

  • Edge computing is pushing infrastructure into hard-to-reach (sometimes hostile) environments.
  • Remote and hybrid ops teams need 24/7 secure access without relying on fragile VPNs.
  • Ransomware and insider threats are rising, requiring an isolated recovery path that can’t be hijacked by attackers.
  • Patching delays leave systems vulnerable for weeks or months, and faulty updates can cause crashes that are difficult to recover from.
  • Automation and Infrastructure as Code (IaC) are no longer nice-to-haves – they’re essential for things like initial provisioning, config management, and everyday ops.

It’s a lot to add to the old “break/fix” job description. That’s why traditional OOB solutions fall short and we succeed. ZPE is designed to help teams enforce security policies, manage infrastructure proactively, drive automation, and do all the things that keep the bad stuff from happening in the first place. ZPE’s founders knew this evolution was coming, and that’s why they built Gen 3 out-of-band.

Gen 3 Out-of-Band Is Your Strategic Weapon

Unlike normal OOB setups that are bolted onto the production network, Gen 3 out-of-band is physically and logically separated via Isolated Management Infrastructure (IMI) approach. That separation is key – it gives teams persistent, secure access to infrastructure without touching the production network.

This means you stay in control no matter what.

Gen 3 out-of-band management uses IMI

Image: Gen 3 out-of-band management takes advantage of an approach called Isolated Management Infrastructure, a fully separate network that guarantees admin access when the main network is down.

Imagine your OOB system helping you:

  • Push golden configurations across 100 remote sites without relying on a VPN.
  • Automatically detect config drift and restore known-good states.
  • Trigger remediation workflows when a security policy is violated.
  • Run automation playbooks at remote locations using integrated tools like Ansible, Terraform, or GitOps pipelines.
  • Maintain operations when production links are compromised or hijacked.
  • Deploy the Gartner-recommended Secure Isolated Recovery Environment to stop an active cyberattack in hours (not weeks).

 

Gen 3 out-of-band is the dedicated management plane that enables all these things, which is a huge strategic advantage. Here are some real-world examples:

  • Vapor IO shrunk edge data center deployment times to one hour and achieved full lights-out operations. No more late-night wakeup calls or expensive on-site visits.
  • IAA refreshed their nationwide infrastructure while keeping 100% uptime and saving $17,500 per month in management costs.
  • Living Spaces quadrupled business while saving $300,000 per year. They actually shrunk their workload and didn’t need to add any headcount.

OOB is no longer just for the worst day. Gen 3 out-of-band gives you the architecture and platform to build resilience into your business strategy and minimize what the worst day could be.

Check out these helpful resources

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Why AI System Reliability Depends On Secure Remote Network Management

by | May 7, 2025 | Actionable Data, Consolidation, Data Center Management, Data Center Resilience, DevOps, Edge Computing, Failover Connectivity, Improve Network Security, Increase Productivity, Micro-segmentation, Minimize Impact of Disruptions, Modernize Legacy Environments, Monitoring & Reporting, Network Automation, Out of Band Management, Power Management, Remote Network Management, Scripting, Streamline Deployments, Vendor Neutral Platform, Virtualization, Zero Touch Provisioning (ZTP), Zero Trust Security

Thumbnail – AI System Reliability

AI is quickly becoming core to business-critical ops. It’s making manufacturing safer and more efficient, optimizing retail inventory management, and improving healthcare patient outcomes. But there’s a big question for those operating AI infrastructure: How can you make sure your systems stay online even when things go wrong?

AI system reliability is critical because it’s not just about building or using AI – it’s about making sure it’s available through outages, cyberattacks, and any other disruptions. To achieve this, organizations need to support their AI systems with a robust underlying infrastructure that enables secure remote network management.

The High Cost of Unreliable AI

When AI systems go down, customers and business users immediately feel the impact. Whether it’s a failed inference service, a frozen GPU node, or a misconfigured update that crashes an edge device, downtime results in:

  • Missed business opportunities
  • Poor customer experiences
  • Safety and compliance risks
  • Unrecoverable data losses

So why can’t admins just remote-in to fix the problem? Because traditional network infrastructure setups use a shared management plane. This means that management access depends on the same network as production AI workloads. When your management tools rely on the production network, you lose access exactly when you need it most – during outages, misconfigurations, or cyber incidents. It’s like if you were free-falling and your reserve parachute relied on your main parachute.

Direct remote access is risky

Image: Traditional network infrastructures are built so that remote admin access depends at least partially on the production network. If a production device fails, admin access is cut off.

This is why hyperscalers developed a specific best practice that is now catching on with large enterprises, Fortune companies, and even government agencies. This best practice is called Isolated Management Infrastructure, or IMI.

What is Isolated Management Infrastructure?

Isolated Management Infrastructure (IMI) separates management access from the production network. It’s a physically and logically distinct environment used exclusively for managing your infrastructure – servers, network switches, storage devices, and more. Remember the parachute analogy? It’s just like that: the reserve chute is a completely separate system designed to save you when the main system is compromised.

IMI separates management access from the production network

Image: Isolated Management Infrastructure fully separates management access from the production network, which gives admins a dependable path to ensure AI system reliability.

This isolation provides a reliable pathway to access and control AI infrastructure, regardless of what’s happening in the production environment.

How IMI Enhances AI System Reliability:

  1. Always-On Access to Infrastructure
    Even if your production network is compromised or offline, IMI remains reachable for diagnostics, patching, or reboots.
  2. Separation of Duties
    Keeping management traffic separate limits the blast radius of failures or breaches, and helps you confidently apply or roll back config changes through a chain of command.
  3. Rapid Problem Resolution
    Admins can immediately act on alerts or failures without waiting for primary systems to recover, and instantly launch a Secure Isolated Recovery Environment (SIRE) to combat active cyberattacks.
  4. Secure Automation
    Admins are often reluctant to apply firmware/software updates or automation workflows out of fear that they’ll cause an outage. IMI gives them a safe environment to test these changes before rolling out to production, and also allows them to safely roll back using a golden image.

IMI vs. Out-of-Band: What’s the Difference?

While out-of-band (OOB) management is a component of many reliable infrastructures, it’s not sufficient on its own. OOB typically refers to a single device’s backup access path, like a serial console or IPMI port.

IMI is broader and architectural: it builds an entire parallel management ecosystem that’s secure, scalable, and independent from your AI workloads. Think of IMI as the full management backbone, not just a side street or second entrance, but a dedicated freeway. Check out this full breakdown comparing OOB vs IMI.

Use Case: Finance

Consider a financial services firm using AI for fraud detection. During a network misconfiguration incident, their LLMs stop receiving real-time data. Without IMI, engineers would be locked out of the systems they need to fix, similar to the CrowdStrike outage of 2024. But with IMI in place, they can restore routing in minutes, which helps them keep compliance systems online while avoiding regulatory fines, reputation damage, and other potential fallout.

Use Case: Manufacturing

Consider a manufacturing company using AI-driven computer vision on the factory floor to spot defects in real time. When a firmware update triggers a failure across several edge inference nodes, the primary network goes dark. Production stops, and on-site technicians no longer have access to the affected devices. With IMI, the IT team can remote-into the management plane, roll back the update, and bring the system back online within minutes, keeping downtime to a minimum while avoiding expensive delays in order fulfillment.

How To Architect for AI System Reliability

Achieving AI system reliability starts well before the first model is trained and even before GPU racks come online. It begins at the infrastructure layer. Here are important things to consider when architecting your IMI:

  • Build a dedicated management network that’s isolated from production.
  • Make sure to support functions such as Ethernet switching, serial switching, jumpbox/crash-cart, 5G, and automation.
  • Use zero-trust access controls and role-based permissions for administrative actions.
  • Design your IMI to scale across data centers, colocation sites, and edge locations.

How the Nodegrid Net SR isolates and protects the management network.

Image: Architecting AI system reliability using IMI means deploying Ethernet switches, serial switches, WAN routers, 5G, and up to nine total functions. ZPE Systems’ Nodegrid eliminates the need for separate devices, as these edge routers can host all the functions necessary to deploy a complete IMI.

By treating management access as mission-critical, you ensure that AI system reliability is built-in rather than reactive.

Download the AI Best Practices Guide

AI-driven infrastructure is quickly becoming the industry standard. Organizations that integrate an Isolated Management Infrastructure will gain a competitive edge in AI system reliability, while ensuring resilience, security, and operational control.

To help you implement IMI, ZPE Systems has developed a comprehensive Best Practices Guide for Deploying Nvidia DGX and Other AI Pods. This guide outlines the technical success criteria and key steps required to build a secure, AI-operated network.

Download the guide and take the next step in AI-driven network resilience.

Best Practices Guide for AI thumbnail
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