ThousandEyes and AppDynamics are two of Cisco's most strategically positioned observability products — and two of the most commercially complex to license. ThousandEyes uses a unit-based consumption model that scales quickly with internet monitoring scope. AppDynamics moved to an Agent Processing Unit (APU) model that can generate significant overage exposure. Both are increasingly promoted as part of the Cisco Full-Stack Observability (FSO) platform. This guide explains both licensing models and how to negotiate them effectively. Part of our Cisco Enterprise Agreement Negotiation Guide.
Cisco acquired ThousandEyes in 2020 for $1B. The platform provides internet and cloud network intelligence — monitoring application delivery paths across the public internet, ISP networks, cloud providers, and enterprise WAN. ThousandEyes is licensed using Units of Intelligent Systems (UIS), a consumption-based unit that bundles monitoring capacity across different test types.
A UIS represents a standardised block of monitoring capacity. Different types of ThousandEyes tests consume UIS at different rates depending on their complexity and data richness. Basic HTTP endpoint tests consume fewer UIS than BGP route monitoring or full path trace tests with browser sessions. Cisco publishes a UIS consumption table, but the mapping is not always intuitive and customers regularly underestimate consumption when scoping initial deployments.
ThousandEyes licences are sold in UIS bundles, typically in blocks of 100, 500, or 1,000 UIS. Enterprise agreements typically include a committed UIS quantity with True Forward mechanics applying if consumption exceeds the committed level at any point during the year.
ThousandEyes operates through agents placed at strategic points across your network and cloud infrastructure. Understanding agent types is essential for scoping your UIS requirements accurately:
The most common ThousandEyes over-spend scenario is over-relying on cloud agents for tests that could be run more cost-effectively from enterprise agents. Cloud agent tests generally consume 2–4x the UIS of equivalent enterprise agent tests. Map your monitoring requirements to the most cost-efficient agent type before committing to a UIS volume.
ThousandEyes costs are driven by the number and type of tests you run, the agent types used, and the alert/dashboard consumption. Common scenarios that drive unexpected cost increases include:
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| Test Type | UIS Consumption (relative) | Common Use Case | Cost Control Lever |
|---|---|---|---|
| HTTP Server (Cloud Agent) | HIGH | SaaS availability monitoring | Shift to Enterprise Agents where possible |
| HTTP Server (Enterprise Agent) | LOW | Internal app monitoring | Default where network access permits |
| BGP Route Monitoring | HIGH | Internet route visibility | Limit to critical routes; reduce monitor frequency |
| Endpoint Agent Tests | MEDIUM | Remote worker experience | Define minimum agent population; rotate coverage |
| Path Visualisation | MEDIUM | WAN path troubleshooting | On-demand rather than continuous |
| Voice (RTP) Testing | MEDIUM | VoIP/Webex quality monitoring | Schedule off-peak; reduce frequency |
Cisco acquired AppDynamics in 2017 for $3.7B. AppDynamics is an Application Performance Management (APM) platform providing deep visibility into application behaviour, transaction tracing, infrastructure monitoring, and business performance analytics. In 2021, Cisco transitioned AppDynamics to the Agent Processing Unit (APU) model — a significant change from the previous per-agent named licence model.
An APU is a consumption unit that normalises the cost of monitoring across different AppDynamics agent types and infrastructure sizes. Rather than paying a flat fee per monitored application or per installed agent, APU consumption varies based on the agent type, the data volume it processes, and the infrastructure it monitors.
APUs are consumed in real time as your AppDynamics deployment processes monitoring data. The more agents you run, the more complex the applications they monitor, and the higher the transaction throughput — the faster your APU pool depletes. Cisco designed the APU model to capture more value from large-scale, high-transaction APM deployments.
| Agent Type | APU Consumption | Monitoring Scope | Overage Risk |
|---|---|---|---|
| Application (Java, .NET, Node.js) | Varies by transaction volume | Full APM + business transaction tracing | HIGH |
| Infrastructure (Machine Agent) | Moderate; fixed rate | Server health, JVM, OS metrics | MEDIUM |
| Database Agent | Lower; per DB instance | Query performance, wait states | MEDIUM |
| Browser (End User Monitoring) | Per page load / session | Real user experience | HIGH (traffic dependent) |
| Synthetic (Browser Robots) | Fixed per synthetic job | Synthetic UX monitoring | LOW |
| Analytics Agent | Varies by data ingest volume | Log analytics, BSOL dashboards | HIGH |
The APU model creates cost dynamics that differ fundamentally from AppDynamics' previous per-agent pricing. The key shift is that your costs are now partially determined by your application workload — not just by how many agents you deploy.
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Applications with high transaction throughput — e-commerce checkouts, high-volume API gateways, payment processing systems — consume APUs at significantly higher rates than lower-volume applications. If you scale a monitored application from 1M to 10M daily transactions (e.g., during a product launch or seasonal peak), your APU consumption can increase by 5–8x even with no additional agents deployed.
This creates a risk unique to APU licensing: your monitoring costs are partially correlated with your business success. Organisations that experience rapid growth or seasonal demand spikes face AppDynamics True Forward events driven not by IT decisions but by commercial performance.
End User Monitoring (EUM) through AppDynamics' Browser Agent or Mobile Agent generates APU consumption proportional to page loads and mobile sessions. For consumer-facing applications with high traffic volumes, EUM can become the largest single APU consumer in your deployment — sometimes exceeding the combined consumption of all application agents.
Many organisations deploy AppDynamics Browser EUM broadly across their entire web estate without modelling the APU impact. A consumer website with 50M monthly sessions can consume more APUs from browser monitoring alone than the entire server-side APM deployment of a typical enterprise application portfolio. Always model EUM APU consumption against your traffic baseline before enabling it at scale.
Cisco's strategic direction is to consolidate ThousandEyes, AppDynamics, and Cisco's broader observability portfolio (including network monitoring from DNA and Meraki) into the Cisco Full-Stack Observability (FSO) platform. FSO represents Cisco's answer to integrated observability spanning network, application, and end-user experience domains.
From a commercial perspective, FSO bundling creates both opportunities and risks. The opportunity: Cisco will typically offer FSO bundle discounts that reduce per-product pricing when ThousandEyes and AppDynamics are purchased together with networking licences. The risk: FSO packaging may lock you into consuming both products even if your current requirement is limited to one, and the bundled pricing can obscure the true cost of individual components.
The most important preparation step is building a detailed consumption model before signing any commercial agreement. For ThousandEyes, map your planned tests, agent types, and monitoring frequency to expected UIS consumption. For AppDynamics, model APU consumption against current transaction volumes with growth assumptions. Request that Cisco validate your model before contract signing — if Cisco is unwilling to validate the consumption estimate, that itself is a red flag about the accuracy of their packaging.
Given that APU consumption is partially driven by transaction volume (which may scale with business performance), negotiate specific True Forward protections for traffic-driven consumption increases. A reasonable position is that APU overages attributable to business traffic growth (rather than new agent deployments) should be treated separately from overages driven by new agent expansion — with a proportionality test applied before True Forward charges are assessed.
AppDynamics faces significant competitive pressure from Datadog, Dynatrace, New Relic, and Elastic APM. All of these alternatives have enterprise customer bases comparable to AppDynamics and offer feature parity or superiority in specific domains. Cisco knows that AppDynamics-to-Datadog migration is a credible competitive threat. Use this explicitly in renewal negotiations — a POC with Datadog is a legitimate negotiation lever, not just a bluff. For ThousandEyes, Catchpoint and Broadcom DX NetOps provide competitive alternatives with different pricing models.
Both ThousandEyes and AppDynamics provide usage analytics — data showing your actual consumption of UIS and APUs over time. Negotiate for contractual access to granular usage data (not just the summarised view in the Cisco portal) so you can run your own consumption models and identify optimisation opportunities. Cisco's default reporting may not surface the specific test-level or agent-level breakdown you need to manage costs effectively.
Conduct a quarterly AppDynamics agent audit to identify agents monitoring retired applications, decommissioned servers, or staging environments that do not require production-level monitoring. Unused or low-value agents that have been deployed and forgotten are a common source of APU over-consumption. Right-sizing your active agent population before the True Forward measurement date reduces both your current APU burn rate and your True Forward exposure.
AppDynamics End User Monitoring (browser and mobile) is a distinct use case from server-side APM. If your organisation has high public web traffic, negotiate EUM pricing with a traffic-based cap rather than an open-ended APU consumption model. Cisco will typically price EUM within the broader APU framework, but separating it allows you to benchmark EUM pricing against web analytics alternatives (Datadog RUM, Dynatrace, FullStory) that may provide equivalent value at lower cost.
If you already have a Cisco Enterprise Agreement for networking or security, use that relationship to negotiate preferential pricing on ThousandEyes and AppDynamics. Cisco places high value on expanding EA suite coverage — the sales team has incentives to add new suites to existing EAs. This creates a negotiating dynamic where your existing EA spend gives you leverage to request FSO products at preferential rates as part of a broader EA amendment, rather than as a standalone purchase.
Where possible, negotiate for a shared UIS/APU flex pool rather than separate committed quantities for ThousandEyes and AppDynamics. A flex pool allows you to allocate capacity to whichever product is experiencing higher demand at any given time — reducing the risk of True Forward on one product while you have surplus capacity on the other. Cisco has offered flex-pool constructs in enterprise agreements where the customer is purchasing both products at meaningful scale.
Struggling with AppDynamics APU overages or ThousandEyes UIS consumption?
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Understanding the competitive landscape is essential for maintaining negotiating leverage with Cisco. The observability market is highly competitive, and Cisco is acutely aware that both ThousandEyes and AppDynamics face credible alternatives.
| Cisco Product | Key Alternatives | Competitive Strength | Negotiation Leverage |
|---|---|---|---|
| ThousandEyes | Catchpoint, Broadcom DX NetOps, NETSCOUT | Catchpoint has stronger SaaS monitoring depth | MODERATE |
| AppDynamics APM | Datadog, Dynatrace, New Relic, Elastic APM | Datadog/Dynatrace highly credible; very active market | HIGH |
| AppDynamics EUM | Datadog RUM, Dynatrace, FullStory | Multiple strong alternatives at lower price points | HIGH |
| FSO Platform | Datadog full-stack, Dynatrace Platform, Grafana | Cisco FSO integration story is still maturing | HIGH |
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