In other words, RIP is a soft state protocol. Every route has a property called a metric, which indicates the distance to the route's destination. Every time a router receives a route advertisement, it increments the metric.
Venous reflux disease, also known as venous insufficiency, is a medical condition affecting the circulation of blood in the lower extremities. Normally, one-way valves in the veins keep blood flowing toward the heart against the force of gravity. When the valves become weak and do not close properly, they allow blood to flow backward and this is a condition called reflux.
1 Deep venous thrombosis: Deep venous thrombosis (DVT) refers to a condition in which a blood clot is formed in a vein and the clot can move through the blood stream to the lungs.  Aortic aneurysms: This refers to abnormal bulging of the major artery that may cause fatal rupture.