LR/RIF headcount decisions in Cisco's Sales organization tend to be made based on forecasts of future sales (Solutions Engineers are part of the Sales organization's pre-sales SE force). That is, the headcount must be rationalized against the projected sales over the next year. If the forecast says headcount must be cut in a group, performance may, or may not, play a role in which individuals are tapped for exit.
Underperforming individuals typically are dealt with through continual management processes rather than waiting for massive LR events, so LRs often include people who have performed well in the past, but unfortunately have become attached to projects or customers that do not have the required growth projections. You could do worse than have Cisco on your resume/CV, but you should not have expectations of life-long employment with Cisco, or any single tech company.
Disclaimers: I am long in CSCO. Bad answers are my own fault as they are not AI generated.