California layoffs at Cisco - timeline and impact?

Heard about the recent layoff of 400+ folks, mostly in California. This seems to be a pretty significant number. For those affected or who know someone affected, can you share any details about the timing? Was it sudden, or were there any warnings? Also, curious about the severance packages and outplacement services that were offered. Were they standard, or did they seem to go above and beyond given the circumstances? It's always tough to see colleagues go, and understanding the support provided helps put things in perspective. Any information, even anecdotal, would be appreciated. Trying to gauge how Cisco is handling these reductions from a human perspective, not just the financial headlines. Were there any specific reasons given for these particular cuts?