segmentation

1. The act of dividing something into smaller units. 2. In local area networks (LANs), the act of dividing a LAN into smaller physical units on a geographical basis through filtering bridges, hubs, switches, or routers. Segmentation relieves congestion by limiting the scope of broadcast messages and by confining unicast and multicast traffic to the segment or segments in the physical path between the originating device and each destination device. See also broadcast, filtering bridge, hub, LAN, multicast, switch, router, unicast. 3. In asynchronous transfer mode (ATM), the process of dividing an incoming data unit —

such as a block, frame, or packet — into cells. As the cells exit the ATM network, they are reassembled in order to reconstitute the original block, frame, or packet. The entire process is known as segmentation and reassembly (SAR). See also ATM, block, cell, frame, packet, and SAR. 4. In packet networks, the breaking of large packets into multiple smaller packets (or IP frames) to meet limits on packet length. Transmission Control Protocol (TCP), for example supports the segmentation of files prior to transmission, and their reassembly upon receipt. See also frame, IP, packet, segment, and TCP.

• 10 Gigabit Ethernet (10GbE)
• 10 Gigabit Ethernet (IEEE 802.3ae) Media Specifications
• 10GigE (10 Gbps Ethernet)
• 10XXX
• 11
• 12
• 128-QAM
• 13
• 1394
• 1/3 FEC
• 14
• 15
• 1.5-way paging
• 16
• 16-QAM
• 16-QPSK
• 18
• 1:8 Splitter
• 1A
• 1A1
• 1A2
• 1Base5 (1 Mbps; Baseband; 500 meters)
• 1B+D
• 1. Domain Name System. The naming convention that divides the Internet into logical domains identified in Internet Protocol version 4 (IPv4) as a 32-bit portion of the total address.The standard convention is user@organization.domain, where user is the name of the end user, organization is the name of the enterprise or other organization owning or sponsoring the address, and domain is the type of entity owning or sponsoring the address.The administration of the DNS is the responsibility of Internet Corporation for Assigned Names and Numbers (ICANN). See also domain, ICANN, Internet, and IPv4. 2.
• 1. In storage, irrelevant material, usually zero (0) bits, added to a data block in order to fill it to a minimum size, to force certain fields of control data or user data into certain positions or sizes, or to prevent the user data from duplicating a bit pattern that has a specific control meaning. See also block. 2.