• An external review found Telstra had not treated network timing as a critical capability and identified gaps in ownership, oversight, expertise and operational controls
  • Telstra has moved services to its strategic timing system and is checking other critical network functions for similar weaknesses

The fact

Telstra has begun reviewing other critical network functions after an external investigation into its July outage found that network timing had not been managed as a critical capability. Technology Audit Partners confirmed the timing system caused the disruption and identified unclear ownership, limited end-to-end oversight, insufficient specialist expertise and weaknesses in change management, configuration control, documentation and incident management, according to Telstra.

Telstra said it has since migrated services from the previous NTP servers to its strategic timing system across all three sites, added monitoring and alarm capabilities and increased lab testing before network changes. A company-wide remediation programme is under way, while the operator is also examining other critical network functions for similar gaps. The review follows the July outage, which disrupted mobile and fixed-line services across Australia and affected other services that relied on Telstra's network.

The assessment

The review shows that July’s outage was not only about a failed timing system. Telstra had not been managing timing as a critical network function, with clear ownership, strong monitoring and up-to-date operational controls.

Telstra has now moved services to its strategic timing system, but the bigger question is whether similar weaknesses exist elsewhere. The company is reviewing other critical network functions to see if they also lack clear ownership, documentation or specialist support.

For BTW readers, that wider review is the important follow-up. Fixing the timing system addresses the immediate fault; finding the same management gaps elsewhere could prevent another routine network change from causing a wider outage.

What to watch

Watch whether Telstra says which other network functions it is reviewing and what it finds. The clearest signs of change will be named owners, updated maintenance procedures, stronger monitoring and more lab testing. If similar gaps turn up elsewhere, that would show the July outage exposed a wider management problem rather than an isolated weakness in the timing system.