The center content area of the pages is designed to use a three- or four-column layout depending on the type of information being presented. The only content in the far left column is the navigation. For layout options that affect the framework, including the far right column, left navigation area, section title and page title, see the Framework section.
Cisco.com 3-column Layout

Cisco.com 4-column Layout

Cisco.com content falls into two broad categories: editorial and functional. Editorial content includes marketing content such as case studies, brochures, and white papers; functional content includes lists of links, contact information, and product listings. Functional content is most often contained within the light blue header bar while editorial content uses the primary header or other types of sub-headlines.
If the primary objective of the page is to provide quick access to detailed product listings, use a three-column design that employs a module of functional content (product listing) extending the length of the page. If the secondary objective of the same page is to introduce users to a new product solution or to company news, use a four-column page.
Some content types have already been matched to fit specific layouts. For example, high-level information (meant for root or category pages) requires a four-column layout.
Page Levels
The page layout and page categorization depends on where the page resides in the information hierarchy. The following descriptions are used: