To create a VLAN, an Ethernet switch can be configured to group ports into numbered VLANs. For example, when packets arrive on port #9 (VLAN #1), the switch can push those packets through all other ports belonging to VLAN #1, and only those ports. This simple, static approach is known as port-based VLAN.
Business casual is an ambiguously-defined dress code that has been adopted by many professional and white-collar workplaces in Western countries. It entails neat yet informal attire and is generally more casual than informal business attire but more formal than casual or smart casual attire.
There is no generally agreed definition of business casual. One definition of business casual states that it includes khaki pants, slacks, and skirts, as well as short-sleeved polo shirts and long-sleeved shirts, but excludes, tennis shoes, tight or short skirts, T-shirts, and sweatshirts.he Dress for Success advice from the University of Toronto sums up business casual as a classic, clean cut, and put together look where a full suit is not required, which means slacks, khakis, or skirts; blouses, polo shirts, or shirts with collar but no necktie; some sweaters; and closed-toe shoes.