Edge device. An edge device is a device which provides an entry point into enterprise or service provider core networks. Examples include routers, routing switches, integrated access devices (IADs), multiplexers, and a variety of metropolitan area network (MAN) and wide area network (WAN) access devices.
1 Sinus barotrauma occurs when there is a difference in pressure between the air in the sinuses and the pressure outside. 2  You may experience pain around your cheek bones or above your eyes.  You may also experience headaches.
Sinus barotrauma is an indicator of other sinus problems that need to be treated surgically or with medication, such as antibiotics, decongestants or antihistamines. Anyone who experiences sinus barotrauma should be evaluated by an ENT (ear, nose, throat) doctor.