Glossary
Glossary-18 PortMaster Configuration Guide
ISO
International Organization for Standards. The international organization that sets
standards for network communication protocols.
ITU-T
International Telecommunication Union Telecommunication Standardization Sector.
International organization that develops worldwide standards for telecommunications
technologies. The ITU-T carries out the functions of the former CCITT. See also CCITT.
K
KB
Kilobyte(s). 1024 bytes.
Kb
Kilobit(s). 1024 bits.
Kbps
Kilobits per second.
keepalive message
A periodic message sent between BGP peers to keep their BGP sessions open. If a preset
amount of time elapses between keepalive messages from a peer, the PortMaster
identifies the peer as no longer operational and drops the session—and any information
learned from that peer.
L
LAN
Local area network. A local collection, usually within a single building or several
buildings, of personal computers and other devices connected by cabling to a common
transmission medium, allowing users to share resources and exchange files. Compare
WAN .
latency
1) The delay between the time a device requests access to a network and the time it is
granted permission to transmit. 2) The delay between the time when a device receives a
frame and the time that frame is forwarded out the destination port.
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