P
- padding
A field in the TCP header structure that fills in enough zeros to ensure the size of the entire segment is a multiple of 32.
- payload
Generic term describing the data content of either a UDP datagram, TCP segment, IP packet, or Ethernet frame.
- ping
The Packet Internet Groper (ping) is a text-based utility that helps you test the reachability of destinations through a TCP/IP network.
- propagation delay
The amount of time required for a piece of data, such as a TCP or UDP packet, to pass through a transmission facility.
- protocol
A small piece of software designed to perform one small, specific task.
- POTS line
POTS lines are circuits that were designed to provide you with plain old telephone service. Although the full name might seem too cute to be a real term, that actually is what the acronym stands for! When you connect a modem to a POTS line, you can use a voice-grade circuit for sending and receiving TCP/IP data.
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