InnoInTech TR Get in Touch

FREE TOOLS / NETWORK REDUNDANCY CHECKER

Network Redundancy Readiness Checker

Assess your network continuity and redundancy levels using a local checklist. Identify potential Single Points of Failure (SPOF) and get actionable mitigation tips.

1. Do you have redundant internet connections from different internet service providers (ISPs)?
2. Are edge firewalls or border routers configured in High Availability (HA) mode (Active/Passive or Active/Active)?
3. Is there physical or logical redundancy (Stacking/VSS/HA) in the Core Switch layer?
4. Are distribution and access switch uplink connections formed by physically redundant paths to the core?
5. Do critical switch uplinks use active link bundling protocols (LACP / port-channel / MLAG / stack)?
6. Is the STP (Spanning Tree Protocol) root bridge placement and loop prevention design fully documented?
7. Do critical network units (Firewall, Core Switch, etc.) feature dual power supplies (Dual PSU) and separate UPS/generator lines?
8. Are configuration backups of network devices scheduled and exported automatically to external storage?
9. Does the monitoring system monitor all critical links and devices 24/7 (SNMP / Ping / logs)?
10. Is there an Out-Of-Band (OOB) management link or disaster administration plan in case direct device access is lost?
11. Are device failover and redundant link tests performed at least annually under controlled conditions?
12. Is there a documented rollback / recovery plan to quickly revert network configurations to a known good state?
Security and Privacy Note:

This tool runs in your browser for preliminary assessment and calculation purposes. Data entered here is not sent to the server, stored or logged. Use sample or masked data instead of real production IP plans, hostname lists, configuration files or confidential network information. Results are not a design, security or resilience guarantee.

Network Resilience & HA Guidelines

Simply purchasing redundant circuits does not guarantee service uptime. To establish true High Availability:

  • Verify device failover timers (keepalives) are tuned to sub-second or milisecond levels.
  • Audit configuration sync states regularly on active-passive clustering nodes.
  • Avoid physical routing sharing (e.g. running redundant wires in the same tray/conduit).
  • Run Disaster Recovery failover rehearsals at least once a year.