"Can You Really Prove TCO & ROI for Deep Network Observability?" 5 Myths Busted

Deep packet inspection, visibility fabrics, packet brokers… for years they've been treated as:

"The expensive but necessary plumbing we just renew every three years."

With AI traffic, 100/400G, and DPU-based architectures, that story is changing fast. The good news: so is the TCO and ROI equation.

In this post, I'll tackle five myths about cost and ROI in DPI / deep observability — and where open solutions like Aviz Packet Broker (APB) and Aviz Service Node (ASN) actually move the needle.

Myth 1: "Packet brokers are just sunk cost - ROI is basically fixed."

The belief

Visibility is a tax. You pay what legacy NPB vendors charge and hope you don't need more ports.

Reality

That was true when visibility meant proprietary appliances only. Today:

• You can run packet broker functions on a white box switch.
• You can offload heavy lifting to DPUs for line-rate, subscriber-aware processing.
• You can treat visibility as a software platform rather than a box.

That unlocks both CapEx and OpEx improvements.

It also aligns visibility with broader open networking and AI strategies: instead of a closed black box, your packet broker becomes part of a programmable, multi-vendor stack.

Where Aviz fits

• Aviz Packet Broker runs on whitebox/commodity switches (e.g., NVIDIA, Edgecore, Celestica, and more).
• Aviz ASN offloads GTP, filtering, and slicing using DPUs, freeing CPUs for advanced and core functionalities.
• ROI comes from: lower appliance spend, better hardware reuse, and more efficient tool utilization.

From real customer patterns:

• You can often get a full APB solution for roughly what you pay annually for Gigamon support alone , especially if your contracts are up for renewal.
• Even if you're locked into a 3-year support contract, you can start with new domains (e.g., expanding packet broker capacity or AI-fabric visibility) and then pivot more of the footprint as contracts expire.

Myth 2: "Moving off proprietary NPBs won't save enough to justify the effort."

The belief

"Even if we save, say, 20%, is it worth all the migration pain from our current NPB vendor?"

Reality

In most observability projects, the tipping point is ~30% savings. In practice, open, SONiC-based brokers can do:

• ~30–40% CapEx savings (commodity vs proprietary hardware)
• 50%+ OpEx savings (support, licensing, and tool consolidation)

Together, that can reach 40–60% TCO reduction in real deployments.

And the savings aren't only financial — you also gain:

• Vendor flexibility
• Easier integration into AI and NetOps platforms
• A consistent operational model shared with your data center switching stack (if you're also moving toward SONiC)

Where Aviz fits

• APB gives you a modern alternative to Gigamon / NetScout / cPacket at a fraction of the cost.
• Aviz can model your existing NPB costs vs an APB-based design and show line-by-line savings.

For customers locked into multi-year support, you can still:

• Start with a small production deployment where you're expanding capacity.
• Or start by putting Network Copilot™ on top of your existing NPB to bring AI into observability now.

You're not moving for marginal gains; you're moving because the economics changed by half.

Myth 3: "Open, SONiC-based visibility can't match appliance-grade capability."

The belief

Commodity hardware + open software = nice for labs, but not for serious DPI and visibility.

Reality

Modern open packet brokers can deliver:

• Line-rate aggregation, filtering, and load-balancing on merchant silicon
• Flexible topologies and multi-vendor hardware
• Integration with all the same security and analytics tools you use today

The difference isn't capability; it's who owns the stack and how much you pay for it.

Where Aviz fits

• APB is built on SONiC with open, programmable ASICs; it's a software-defined visibility fabric, not a fixed appliance.
• It's designed to plug into existing security/compliance/perf tools via standard interfaces (REST, CLI, GUI).
• You can reuse existing switches where appropriate and scale visibility horizontally, not only by buying another proprietary box.

From customer conversations and FAQs:

• APB is explicitly architected to avoid hardware lock-in; SONiC, as the NOS layer, keeps you vendor-agnostic.
• It works as an open visibility fabric with a wide range of third-party tools, so you don't have to rip-and-replace your security or analytics ecosystem.

You keep enterprise capabilities and add hyperscaler-style economics and freedom of choice.

Myth 4: "DPU acceleration for observability is overkill."

The belief

DPUs sound fancy, but I'm "just" doing DPI and visibility. CPUs and appliances are enough.

Reality

As you push towards:

• AI clusters
• Subscriber-aware analytics
• 100/200/400G links

CPU-based packet processing becomes the bottleneck:

• Expensive to scale
• Harder to maintain line-rate visibility
• Power-inefficient compared to offloading

DPU-based acceleration isn't about buzzwords; it's about making deep observability sustainable at modern speeds and densities.

Where Aviz fits

Aviz Service Node (ASN):

• Offloads networking & security functions from host CPUs to the DPU.
• Handles GTP-C/U, steering, and subscriber-coherent visibility at line rate.
• Frees your tools and servers from packet-chopping, so they focus on analytics and detection.

This dovetails with Aviz's broader AI and NetOps stack:

• Network Copilot™ can consume the enriched, filtered streams coming from OPB/ASN.
• ONES can give you a unified operational view of both switching and visibility fabrics.

DPU acceleration isn't about being cool; it's how you sustain deep observability at AI-era speeds without blowing up cost and power.

Myth 5: "TCO and ROI for deep observability are too hard to quantify."

The belief

Visibility is a "must have", so I renew whatever I have. Trying to model ROI feels hand-wavy.

Reality

You can put hard numbers on:

• Current NPB spend: hardware, support, smart-hands contracts, power/rack.
• Tool cost: how many tools receive full traffic vs filtered traffic.
• Growth curve: how visibility costs grow with 100/400G and AI fabrics.

Then compare that with:

• SONiC-based APB hardware cost
• Support pricing
• DPU-based offload (fewer servers, more efficient use of tools)
• Lower incremental cost per Gbit/sec of visibility.

Where Aviz fits

Aviz typically models:

• 30–40% CapEx savings on visibility
• 50%+ OpEx savings (support + ops + tool optimization)
• Overall 40–60% TCO reduction, depending on the environment

And because APB + ASN are multi-vendor and software-first, they plug into the broader open networking ROI you might already be considering with SONiC and AI.

From customer stories:

• Aviz can provide TCO case studies, detailed decks, and customer references to help you build a business case for leadership.
• The same ROI engine used for SONiC and Network Copilot™ - time saved, incidents reduced, tools consolidated - extends cleanly into deep observability.

You move from "visibility is just a tax" to "visibility is an optimized, measurable part of our open networking strategy."

Bottom line

Deep observability doesn't have to be an expensive black box with fuzzy ROI.

With Aviz APB and ASN, you can:

• move from proprietary appliances to open, software-defined visibility,
• offload heavy packet work to DPUs,
• and actually quantify the savings in CapEx, OpEx, and future flexibility.

Paired with SONiC, ONES, and Network Copilot™, you're not just cutting costs - you're standardizing on an open, AI-ready networking stack from the fabric up to operations.