Now in Public Beta — Free for Early Access

Master Network Engineering
Like a Pro

The only platform where you troubleshoot real incidents, work CLI terminals, receive phone calls, manage alarms, and climb from Junior to Senior Data Center Network Engineer — all in your browser.

Join engineers worldwide already learning

Devices

Core-SW-1
Dist-SW-1
Dist-SW-2
Access-01

Topology

Core-SW-1· SSH · 192.168.1.1
Cisco IOS XE Software, Version 17.9.3a
Core-SW-1>enable
Core-SW-1#configure terminal
Enter configuration commands, one per line.
Core-SW-1(config)#router ospf 1
Core-SW-1(config-router)#network 10.0.0.0 0.255.255.255 area 0
Core-SW-1(config-router)#passive-interface GigabitEthernet0/0
Core-SW-1(config-router)#exit
Core-SW-1(config-router)#
0+
CLI Labs
6+
Real Scenarios
5
Vendor Engines
10k+
Commands Supported

Everything a Real Network Engineer Needs

Not just flashcards and videos. A complete environment that replicates the day-to-day challenges of enterprise and data center networking.

Real CLI Terminal

Type real Cisco IOS, NX-OS, and JunOS commands in your browser. Tab completion, command history, privilege levels — exactly like the real thing.

Scenario Mode

Get a phone call, receive an alarm, open a ticket. Troubleshoot real incidents under time pressure like a Senior Network Engineer would.

NOC Dashboard

Monitor BGP sessions, interface utilization, CPU/memory, OSPF neighbors, and alarms from a realistic Network Operations Center view.

Mail System

Receive emails from users, managers, and vendors. Reply, escalate, and close tickets as part of real-world workflow scenarios.

Career Progression

Earn XP, level up, unlock achievements, and climb from Network Apprentice to Distinguished Engineer. Daily and weekly missions keep you sharp.

Physical Data Center

Mount switches in racks, connect fiber and copper cables, replace hardware, reset PDUs. Physical layer knowledge included.

Multi-Vendor Support

Cisco IOS, IOS-XE, NX-OS available now. Juniper JunOS, Arista EOS, Fortinet, and Linux coming soon.

Structured Learning

Theory → Quiz → CLI Lab → Scenario → Challenge → Exam. Each topic builds on the last with a clear progression path.

Choose Your Career Path

Structured learning paths aligned with real job roles. Progress from Junior to Senior with a clear curriculum designed by network professionals.

Network Engineer

Junior → Senior

Master switching, routing, and WAN technologies. The foundation of every network career.

VLANs & STPOSPF & BGPQoSSD-WANMPLS

Data Center Engineer

Engineer → Architect

Specialize in spine-leaf architectures, EVPN/VXLAN, and high-density DC switching.

VXLANEVPNSpine-LeafvPCNX-OS

Network Security Engineer

Engineer → Specialist

Firewall policies, Zero Trust, IDS/IPS, VPN, and network segmentation.

Firewall RulesVPNMicro-SegmentationIDS/IPSNAT

NOC Engineer

Tier 1 → Tier 3

Event correlation, alert management, escalation procedures, and incident response.

MonitoringAlertingEscalationRunbooksRCA

Real CLI. Real Commands.

Not a simulation. Not fake output. The same Cisco IOS experience in your browser, with tab completion, command history, and realistic device behavior.

Lab: VLAN Segmentation — Cisco IOS
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# vlan 10
Switch(config-vlan)# name MANAGEMENT
Switch(config-vlan)# exit
Switch(config)# interface GigabitEthernet0/1
Switch(config-if)# switchport mode access
Switch(config-if)# switchport access vlan 10
Switch(config-if)# no shutdown
Switch(config-if)# do show vlan brief
VLAN Name Status Ports
---- -------------------------------- --------- ---------------
1 default active Gi0/0
10 MANAGEMENT active Gi0/1
✓ VLAN 10 created and named MANAGEMENT
✓ GigabitEthernet0/1 assigned to VLAN 10
Switch(config-if)#

Simple, transparent pricing

Start free and upgrade when you're ready. No hidden fees.

Free
$0/mo

3 labs · 5 scenarios · Level 0 curriculum

Get Started
Most Popular
Pro
$9/mo

Unlimited labs · Full curriculum · Certificates

Start 7-Day Trial
Team
$25/person/mo

Everything in Pro · Admin dashboard · Team board

Contact Sales

Ready to become a Senior Network Engineer?

Start with the fundamentals and work your way up to EVPN/VXLAN Data Center architectures.

Get Started for Free