One of the questions we get quite a lot from our customers is related to upgrading and replacing older Cisco devices. The questions usually takes the form of “When should I replace an older devices (even if it still works?) or “How do I know when a device should be targeted for replacement?” While there are many possible answers to this question, one of the main pieces of information that should inform the decision is: At what stage in the announced product lifecycle are your current devices?
