Good analysis, worth a read.
With the level of IBNS competition as projected by Gartner to rise dramatically in the next three years, and with a qualitative market shift under way to generic switches and routers using open source software, Cisco continues a closed code and branded hardware approach which has already seen the company's profitability and market share erode substantially.
https://seekingalpha.com/article/4113802-cisco-lie-wait