Stop Testing Network Changes in Production

A misconfigured BGP peer takes down your network. Downtime cost: $336,000/hour.

The cause? A change that went straight to production. No sandbox. No validation.

One prevented outage pays for years of sandbox testing.

With NetPilot, you can test every change in an isolated sandbox before production — in minutes, not weeks.

The Problem

Network changes go untested:

• Building a test environment takes too long
• Lab requests sit in a queue for weeks
• By the time the sandbox is ready, the project is late

Result: Changes go straight to production. Hope for the best.

What Can Go Wrong?

BGP Misconfiguration:

• Wrong AS number → routing loops
• Missed route filter → full table leak
• Typo in neighbor IP → peering fails

ACL Errors:

• Block legitimate traffic by accident
• Expose sensitive services unintentionally
• Break existing flows without realizing

Routing Protocol Issues:

• OSPF area mismatch → routes not propagated
• EIGRP metric tuning → suboptimal paths
• Static route typo → black hole traffic

One bad change = hours of downtime.

The Traditional Workflow

Change validation the old way:

1. File change request ticket
2. Wait for lab environment approval
3. Provision VMs, install EVE-NG/GNS3
4. Hunt for device images
5. Build topology manually
6. Configure each device via CLI
7. Hope it matches production

Timeline: Weeks (if you're lucky)

Reality: Most teams skip steps 3-7 and go straight to production.

The NetPilot Workflow

Change validation with NetPilot:

1. Describe your test scenario in plain English
2. AI builds a matching topology with working configs
3. Test the change, validate, ship with confidence

Timeline: Minutes

Real Example: BGP Change Validation

Scenario: You need to add a new BGP peer and update route filters.

Your Prompt:

Build a sandbox matching our core network:
- 3 routers running iBGP
- Add a new external BGP peer (AS 65001)
- Apply route filters to only accept customer prefixes

What NetPilot Generates:

! Core router config (auto-generated)
router bgp 65000
 neighbor 192.168.1.1 remote-as 65000
 neighbor 192.168.1.2 remote-as 65000
 neighbor 10.0.0.1 remote-as 65001
 !
 address-family ipv4
  neighbor 10.0.0.1 route-map CUSTOMER-IN in
  neighbor 10.0.0.1 route-map CUSTOMER-OUT out
!
ip prefix-list CUSTOMER-PREFIXES permit 203.0.113.0/24
!
route-map CUSTOMER-IN permit 10
 match ip address prefix-list CUSTOMER-PREFIXES
!
route-map CUSTOMER-OUT permit 10
 match ip address prefix-list OUR-PREFIXES

Test Your Change:

• SSH into the sandbox router
• Apply your actual config changes
• Verify BGP peers establish
• Check route filters work correctly
• Validate no unintended routes leak

Result: Catch the typo in the prefix list before it causes a production outage.

Use Cases

Pre-Deployment Testing Upload production configs → Digital twin in 2 minutes → Test changes safely

Automation Validation Test Ansible playbooks against real device CLIs before deploying to production

Multi-Vendor Changes Validate configs across Cisco, Juniper, Arista, Palo Alto in one sandbox

Firewall Rule Testing Add ACL changes to a digital twin → Validate traffic flows → Deploy with confidence

What Gets Tested?

Routing Changes:

• ✅ BGP peer additions/removals
• ✅ OSPF area changes
• ✅ EIGRP metric tuning
• ✅ Static route updates

Security Changes:

• ✅ ACL modifications
• ✅ Firewall rule updates
• ✅ Zone-based policy changes
• ✅ NAT configuration

Automation Scripts:

• ✅ Ansible playbooks
• ✅ Python scripts (Netmiko, NAPALM)
• ✅ Terraform configs
• ✅ Custom automation

The ROI

Cost of downtime:

• $5,600 per minute (Gartner average)
• $336,000 per hour
• Some enterprises report $540K+/hour

Cost of a sandbox:

• NetPilot subscription: fraction of one hour of downtime
• Time to build sandbox: minutes vs. weeks
• Risk reduction: catch errors before production

One prevented outage pays for years of NetPilot.

How It Works

1. Describe Your Network

Build a digital twin of our production core:
- 3 routers with OSPF area 0
- iBGP with route reflector
- 2 firewalls in HA pair
- VPN termination to branch offices

2. AI Builds the Sandbox

NetPilot generates:

• Complete topology matching production
• Working configs for all devices
• Isolated cloud environment (dedicated VM)

3. Test Your Changes

• SSH into sandbox devices (real CLI access)
• Apply your proposed changes
• Run verification commands
• Validate traffic flows

4. Deploy with Confidence

If the sandbox works, production will work.

Supported Vendors

Routers & Switches:

• ✅ Cisco IOL (routers and L2 switches)
• ✅ Juniper cRPD
• ✅ Arista cEOS
• ✅ Nokia SR Linux

Firewalls:

• ✅ Palo Alto PAN-OS
• ✅ Fortinet FortiGate

AI handles each vendor's syntax automatically — no multi-vendor CLI expertise required.

Integration with CI/CD

NetPilot provides a REST API:

# Spin up sandbox as part of GitOps workflow
response = netpilot.create_lab(
    description="Production core digital twin",
    timeout=300
)
 
# Run automated tests
validate_bgp_peers(response.lab_id)
validate_route_filters(response.lab_id)
 
# Tear down when complete
netpilot.destroy_lab(response.lab_id)

Enable continuous validation of network changes before they reach production.

The Reality

You can't spend weeks building a sandbox every time you need to validate a change. Modern networks move too fast.

NetPilot eliminates the tedious parts — provisioning VMs, hunting for images, configuring devices manually — so you can focus on validating the change itself.

Test in minutes. Deploy with confidence. Avoid expensive outages.

Ready to validate network changes safely? Get started with NetPilot and build your first sandbox in under 60 seconds.