Dealing with unexpected technical glitches during network upgrades. How can you ensure uninterrupted service?

Upgrading your network can be fraught with surprises, but a smooth transition is possible with the right approach. To maintain service continuity:

- Implement redundant systems to handle traffic if primary pathways fail.

- Schedule upgrades during low-traffic periods to minimize user impact.

- Conduct thorough pre-upgrade testing to anticipate and rectify potential issues.

What strategies have you found effective for managing technical upgrades?