Description: By default, all ports are considered service ports. A service port is a port that provides a networks service such as a connection to a server, other switches, or the like. A service port will trigger the service port event for status changes with the alarm severity and will trigger an alarm in the alarm table on link failure.

In contrast, user ports trigger the user link event with warning severity. They do not trigger an alarm upon link failures. User ports are useful to prevent floods of traps or entries in the alarm table. This is especially true for ports connected to user hosts that power up in the morning and power down again at the end of the work day.