what i learnt today

today i learnt a new term in networking. Green field installation. To borrow from SearchVoip.com it means In networking, a greenfield deployment is the installation and configuration of a network where none existed before, for example in a new office. A brownfield deployment, in contrast, is an upgrade or addition to an existing network and uses some legacy components. The terms come from the building industry, where undeveloped land (and especially unpolluted land) is described as greenfield and previously developed (often polluted and abandoned) land is described as brownfield.