Ethernet Multiple Logical Groupings
Different Applications; Different Users
It is possible to set up closed subgroups (green solid lines and pink dotted lines) on switches. A
recreational or charter boat could set up one logical network for
passenger use, and another restricted to the crew.
At home, you might want to have a separate logical grouping for
sensitive things like file sharing and printing, with a different
subgroup that is exposed to the Internet. In fish processing plants and
similar facilities, you might have separate groups for processing,
accounting, and backup.