Computer Networking · Advanced level

Advanced level · Module 6: Capstone: Multi-Site Network · Lesson 4 of 5

Testing and Failover

Prove the network works and survives failures.

In this lesson you will

  • Run a full test plan
  • Test failover scenarios

Key concepts

functional testssecurity testsfailover testsresults

The lesson

Test every requirement: connectivity, services, wireless, isolation and firewall rules.

Test failover: disconnect a WAN link or core switch link and confirm traffic reroutes.

Record results and fix failures before presenting.

Step by step

  1. Run functional tests.
  2. Run security tests.
  3. Run failover tests.
  4. Fix and retest.

Practice activity

Complete testing of the capstone network.

Expected result: A completed test plan with failover proven.

Check your understanding

  1. How do you prove resilience?

    Show answer

    By failing a link and confirming traffic reroutes.

  2. What should happen to failed tests?

    Show answer

    Fix the cause and retest.

Taught live by an instructor — online or in person. Free course lessons are for self-study and do not lead to a certificate — see registration options.