Cisco, the dominant maker of routers and switches, appears to have designs on the blade server market. It has reportedly begun working on its own virtualized technology code-named “California Server.” It is said to run on Intel processors and Cisco’s own Nexus switch. Details are murky, but questions are plentiful: For instance, there is speculation as to whether Cisco is planning a general-purpose blade server or one designed for a specific use case, such as telephony.