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:
“The captain was a duck
With a packet on his back,
And when the ship began to move
The captain said, Quack! Quack!”
—Mother Goose (fl. 17th–18th century. I saw a ship a-sailing (l. 13–16)
“Mental health data from the 1950’s on middle-aged women showed them to be a particularly distressed group, vulnerable to depression and feelings of uselessness. This isn’t surprising. If society tells you that your main role is to be attractive to men and you are getting crow’s feet, and to be a mother to children and yours are leaving home, no wonder you are distressed.”
—Grace Baruch (20th century)
“The way to be patriotic in America is not only to love America, but to love the duty that lies nearest to our hand, and to know that in performing it we are serving our country.”
—Woodrow Wilson (1856–1924)