A lot of HR, hiring managers and talent acquisitions of other companies used to want to hire anyone who previously worked at Cisco, but not anymore, these days.
Because more and more HR, hiring managers and talent acquisitions of other tech companies have got to know the reality of the level of Cisco employees who are actually lower a level than people at other tech companies. So the longer people stay at Cisco, the more disadvantage they will have when looking for a job outside Cisco.