The Packet Data Serving Node, or PDSN, is a component of a CDMA2000 mobile network. It acts as the connection point between the radio access and IP networks. This component is responsible for managing PPP sessions between the mobile provider's core IP network and the mobile station (mobile phone). It is similar in function to the GGSN (GPRS Gateway Support Node) that is found in GSM and UMTS networks.
Although PDSN is thought of being similar to GGSN in a conceptual sense, logically it's a combination of SGSN and GGSN in the CDMA world. It provides:
- Mobility management functions (provided by SGSN in the GPRS/UMTS networks)
- Packet routing functionality (provided by GGSN in the GPRS/UMTS networks)
Famous quotes containing the words packet, data and/or serving:
“we know our end
A packet of worm-seed, a garden of spent tissues.”
—Allen Tate (1899–1979)
“This city is neither a jungle nor the moon.... In long shot: a cosmic smudge, a conglomerate of bleeding energies. Close up, it is a fairly legible printed circuit, a transistorized labyrinth of beastly tracks, a data bank for asthmatic voice-prints.”
—Susan Sontag (b. 1933)
“I tell people all the time, you have to be in love with that pot. You have to put all your love in that pot. If you’re in a hurry, just eat your sandwich and go. Don’t even start cooking, because you can’t do anything well in a hurry. I love food. I love serving people. I love satisfying people.”
—Leah Chase (b. 1923)