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Cisco this week has announced the end of sale and end of life dates for the 7200 Series NPE-G1 Network Processing Engine. This is an older routing engine that is definitely showing its age compared to newer platforms that are available.
The last day to buy the NPE-G1 is February 27, 2012. Last day for hardware support is February 28, 2017. The recommended upgrade path is the ASR1000 series.
Full details are available in the official announcement.