A CE router ( customer edge router ) is a router located on the customer premises that provides an Ethernet interface between the customer's LAN and the provider's core network. CE routers, P (provider) routers and PE (provider edge) routers are components in an MPLS (multiprotocol label switching) architecture.
Acute and chronic forms of invasive fungal sinusitis usually affect people with suppressed immune systems, such as that caused by cancer, chemotherapy drugs, or uncontrolled diabetes mellitus. Symptoms often include facial pain, eye swelling, blindness, fever and nose bleeds.
Most of these cases of sinusitis are mild and caused by viral and bacterial infections. Less commonly, sinus infections can be caused by fungus. Fungi are found throughout nature, and airborne fungus can be inhaled into the nose and lungs, causing various types of infections in the respiratory tract. Fungal infections of the sinuses can be divided into two major types: non-invasive and invasive.