Network Time Machine is a replay-first network observability and digital twin platform that continuously captures topology and configuration history, detects infrastructure drift, correlates multi-device events, reconstructs outages, evaluates security compliance, and enables time-travel analysis of enterprise networks.
By combining topology replay, configuration intelligence, root-cause reconstruction, compliance auditing, and interactive digital twins, NTM provides engineers with a historical view of how their network evolved and why incidents occurred.
Network Time Machine combines the core automation of v1, the layout upgrades of v2, and the dynamic isolation of v3 into a single premium desktop app.
Modular commands for topology, replay, protocols, telemetry, RCA, simulation, reporting, and workspaces.
ntm <module> <action> [options]ntm replay start
ntm replay timeline --from 12:30 --to 12:45
ntm replay compare session1 session2
ntm timeline reset
ntm topology show
ntm gns3 status
ntm gns3 connect <project_id>
ntm topology trace PC1 PC4
ntm ospf neighbors
ntm ospf convergence
ntm stp blocked
ntm bgp bestpath
ntm rca blast-radius SW1
ntm events correlate
ntm export timeline
ntm export json
Three practical CCNA-ready workflows: Cisco SSH config pull, automatic config diff, and webhook change alerts.
Use Netmiko to log into Cisco IOS/XE/NX-OS devices and pull the live running-config directly from routers and switches.
Every new backup is compared against the previous config so interface shutdowns, IP changes, VLAN edits, and routing changes stand out instantly.
When NTM detects config drift, it sends a concise diff notification to Discord, Slack, or Telegram via webhook.
Run NTM manually or attach it to Windows Task Scheduler: pull config, diff yesterday's backup, save the snapshot, alert on changes.
Backups are written to the user data folder so historical running-config snapshots remain portable and easy to inspect.
Switch GNS3 project targets dynamically from the console. Wipes previous session cache automatically and reconstructs a new baseline timeline frame to prevent topology cross-talk.
Upcoming next-gen observability advancements designed for enterprise network digital twins.
Synthesizes safe fallback configurations using AI-driven syntax validation to undo configuration drift without service disruption.
Extended support beyond Cisco IOS to Arista EOS, Juniper Junos, and VyOS to monitor multi-vendor routing fabric topologies.
Models the logical reachability impact of proposed routing and ACL changes against the current digital twin topology baseline.
A focused utility for CCNA learners, lab builders, and network engineers who need configuration visibility.
Visually audit path transitions, analyze complex protocol convergences (OSPF/BGP), verify backup link behavior, and run outage impact simulations securely.
A superb, visual sandbox accelerator. Say goodbye to running 15 separate PuTTY terminal sessions. View, test, and learn router commands from a single visual console.
Build visual digital twin sandboxes of your network topologies, save session state snapshots, and load configurations offline to test integration code.
Export live states to user directories, record detailed events for forensic logging, check Latency/Loss metrics, and review historical console logs easily.
Configure your NTM v3 Cisco automation workflow in minutes.
NTM v3 uses Netmiko over SSH to pull running-config backups from Cisco routers and switches.
show running-config.NTM v3 allows you to manually bind to any active project on your local or remote GNS3 server.
http://localhost:3080) in the GNS3 Project Integration panel.Install NTM v3 as a standard desktop application using the Inno Setup package.
NTM_v3_Setup.exe.Connect and navigate the digital twin console in your browser.
http://localhost:5050!Get the portable standalone Network Time Machine config backup, diff, and alerting suite for Windows.
ntm <module> <action> command setNTM_v3_Setup.exe or NTM.exe) via a web browser, Windows SmartScreen may show a security alert ("These files can't be opened" or "Unknown Publisher"). To launch the app:
NTM_v3_Setup.exe or NTM.exe) and select Properties.Have questions about compatibility, security, or offline historical mode?
When you download executable packages (like NTM_v3_Setup.exe or NTM.exe) via a web browser, Windows automatically attaches an "Internet Zone" security block flag to safeguard the file system. To fix this, do not launch the file from the browser's download bar. Instead, locate the file in your Windows File Explorer (e.g. your Downloads folder), right-click the file, open Properties, check the Unblock option at the bottom of the General tab, click Apply, and double-click to run.
No, NTM v3 operates 100% locally on your machine. It requires zero cloud services or internet connection, keeping your GNS3 simulation infrastructure secure and private.
If NTM is run without a running GNS3 project, it displays an alert warning banner but remains fully functional. You can load previously saved dynamic JSON snapshots or SQLite databases to Travel through historical timeline states offline!
To avoid permission access blocks on Windows system directories, NTM automatically routes all cache database schemas, CLI exports, and session records into your user profile folder at C:\Users\<username>\Network-Time-Machine\.