Old switches show: "HP J9298A Switch 2520G-8-PoE" (model after Switch) Newer switches: "HP J9565A 2520G-8-PoE Switch" (model before Switch) New approach: strip vendor prefix + J-code + "Switch" keyword, leaving just the product name. Returns tuple (model, part_number). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>