Juniper SD-WAN Troubleshooting & Power Redundancy Survey

Client Industry: Enterprise Networking / Critical IT Infrastructure
Location: [Confidential]
Scope: SD-WAN Troubleshooting, Firmware Diagnostics, Power Redundancy Survey & Reporting

Challenges

Post-Upgrade Instability – Device logs generated excessive errors after the OS/firmware update, complicating troubleshooting.

Limited Initial Access – Early troubleshooting had to be performed remotely via console, with incomplete logging information.

Power Redundancy Concerns – The client’s racks lacked a structured survey of redundancy and demarcation points, increasing risk of outages.

Our Approach

Phase 1 – SD-WAN Troubleshooting

Assisted the client via console access, analyzing raised logs and requesting new logs for better visibility.

Conducted a configuration review to identify potential misalignments post-upgrade.

Recommended and executed a hard power cycle of the Juniper SD-WAN device, which ultimately resolved the operational issue.

Phase 2 – Power Redundancy Survey

Applied a reverse engineering methodology by first documenting a detailed rack elevation layout for each rack.

Conducted a device-level power redundancy assessment, recording how each device was connected to power sources.

Identified main power demarcation points, mapping dependencies and potential single points of failure.

Compiled the findings into a comprehensive technical report including:

Rack elevation diagrams

Power redundancy status per device

Recommendations for future resilience improvements

Outcome & Deliverables

Resolved the immediate SD-WAN instability with minimal downtime impact.

Delivered a customized power redundancy report, enabling the client to visualize their infrastructure dependencies and plan upgrades.

Increased client confidence in system reliability and post-upgrade support procedures.

Received client recognition for analytical approach and clear documentation, which provided both technical clarity and executive-level understanding.

Key Impact

By combining hands-on SD-WAN troubleshooting with a structured redundancy assessment, we not only restored operations but also provided the client with a roadmap to avoid future outages, ensuring both network stability and power resilience.