Juniper Fleet Firmware Upgrade Program

Upgrade planning across EX3400, EX4300, QFX5100, MX104, and MX480 platforms.

Context

Different platforms and starting versions required prerequisites, approved upgrade paths, service-impact analysis, configuration-change research, and a shared operating procedure.

Responsibility and approach

Rahul researched JTAC guidance, mapped paths, documented prerequisites and impact, and built an SOP that made the change reviewable across the fleet.

Outcome

The work produced a documented, supportable operating state. No unverified client metric is claimed here.

Lessons carried forward

A firmware program succeeds when every device has a known path, evidence gate, rollback condition, and post-upgrade service check.