Cyclades AlterPath BladeManager - Manual (Page 198)

Glossary
Glossary-12 AlterPath Manager E2000 Manual
UDP User Datagram Protocol uses a special type of packet called
a datagram. Datagrams do not require a response; they are
one way only (connectionless). Datagrams are usually used
for streaming media because an occasional packet loss will
not affect the final product of the transmission.
U Rack Height Unit A standard computer rack has an internal width of 17 inches.
Rack space on a standard rack is measured in units of height
(U). One U is 1.75 inches. A device that has a height of 3.5
inches takes 2U of rack space.