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The Switch Control Plane drives many of the functional aspects of a switch , and as such is a critical resource that must be protected . Though it is not supposed to be used for recruiting purposes , it is a tremendous asset in understanding the dynamics of the local supply of degreed IT professionals . Rather than exciting technical breakthroughs , IT professionals face long high-pressure years during which they are demeaned as ' geeks ' . They look a lot like the first group but are either led by someone who understands how screwed up things are or have a cluster of professionals who are trying to change things . Community strings could either grant Read-Only or Read-Write access to a particular device . Within the Cisco MDS 9000 Family switches , AAA can be used to centralize the user accounts for the switches . Instead , the site uses small player advertising and promotion tactics to peddle the silly notion that members of the association can leverage their relationship to reduce costs with the big boys . While truck drivers , agriculture workers and maintenance professionals will be getting scarce in 2004 or 2005 , the high-faluting managers and professionals will not be touched until later in the decade . The fact that they can only measure the traffic of people who actually use the Alexa Software is no more suspect than the tactics used by other measurement companies .