141
geographic l
ocations and are connected by telephone lines or radio
waves.
NWay Protocol
A network protocol that can automatically negotiate the highest
possible transmission speed between two devices.
P
PING Packet Internet Groper, a utility used to deter
specific IP address is accessible. It functions by sending a packet
to the specified address and waits for a reply. It is primarily used
to troubleshoot Internet connections.
PPPoE Point-to-Point Protocol over Ethernet. PPPoE is a specif
connecting the users on an Ethernet to the Internet through a
common broadband medium, such as DSL or cable modem. All
the users over the Ethernet share a common connection.
Protocol Communication on the network is governed by sets of rules
protocols
. Protocols provide the guidelines devices use to
communicate with each other, and thus they have different
functions. Some protocols are responsible for formatting and
presenting and presenting data that will be transferred from file
serv
er memory to the file server’s net work adapter Others are
responsible for filtering information between networks and
forwarding data to its destination. Still other protocols dictate how
data is transferred across the medium, and how servers respond to
wo
rkstation requests and vice versa. Common network protocols
responsible for the presentation and formatting of data for a
network operating system are the Internetwork Packet Exchange
(IPX) protocol or the Internet Protocol (IP). Protocols that dictate
the format of data for transferors the medium include token-
passing and Carrier Sense Multiple Access with Collision
Detection (CSMA/CD),implemented as token-
FDDI, or Ethernet. The Router Information Protocol (RIP),a part
