TCP/IP First-Step [Electronic resources]

Mark A. Sportack

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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.