HP ProCurve Secure 7000dl Series Basic Management And Configuration Manual page 747

Appendix B: Glossary
Frame A packet of information that has been encapsulated by a Data Link Layer
protocol. Each Data Link Layer protocol defines a frame header, which
includes the information that the receiver needs to process the frame and
recover the data in the encapsulated packet. Devices must use the same data
link layer protocol in order to exchange frames.
Frame Formatting The format that a Physical Layer protocol gives to frames sent across a carrier
line. Frame formatting defines how a device transmits bits over multiplexed
carrier lines so that the device at the other end of the link can Frames are run
through several protocols, each of which format the frame to fit protocol
specifications. Protocols may encapsulate already encapsulated frames,
creating protocol stacks that must be stripped one at a time to recover the
data being transmitted.
Frame Relay An OSI Data Link Layer (Layer 2) protocol. Frame Relay supports data transfer
over WAN connections such as T1- and E1-carrier lines. Frame Relay is packet
switching technology, which means that a service provider switches packets
from multiple customers over the same physical lines. Permanent virtual
circuit (PVC) connects one network device to another, ensuring that packets
are switched to the correct location. For more information on Frame Relay,
see RFC 2427 (at http://www.ietf.org/rfc/rfc2427.txt). See also DCE, DTE,
and PVC.
FRF Frame Relay Forum. A standards body that merged with the MPLS forum to
become the MPLS and Frame Relay Alliance.
FRTS Frame Relay Traffic Shaping. FRTS uses priority queueing or custom framing
and is a quality-of-service traffic-shaping mechanism. High-priority-queue
data is transmitted before low-priority data. Custom framing allows the
queues to take turns.
FSAN Full Service Access Network Group. A standards group.
FT1 Fractional T1. A portion of a T1 circuit. A full T1 circuit has a capacity of 1.544
Mbps and is composed of twenty-four (24) 64 kbps channels. A customer may
save money by leasing only a portion of the full circuit. A fractional T1 can
only be configured in increments of 64 Kbps (one channel).
FTP File Transfer Protocol. An OSI Layer 7 protocol that transfers files between
computers, which can use widely differing operating systems. For more
information on FTP, see RFC 959 (at http://www.ietf.org/rfc/rfc0959.txt).
FTTB Fiber-To-The-Building. Refers to the installation of fiber optic cable directly
to a building.
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