| slovo | definícia |
data link
(encz) | data link, n: |
data link
(wn) | data link
n 1: an interconnecting circuit between two or more locations
for the purpose of transmitting and receiving data [syn:
link, data link] |
| | podobné slovo | definícia |
data link connection identifier
(foldoc) | Data Link Connection Identifier
(DLCI) A channel number which is attached to
data frames to tell a Frame Relay network how to route the
data. In Frame Relay, multiple logical channels are
multiplexed over a single physical channel. The DLCI says
which of these logical channels a particular data frame
belongs to.
(http://etinc.com/frmain.htm#whatsadlci).
(2000-02-13)
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data link layer
(foldoc) | data link layer
data link level
layer 2
Layer two, the second lowest layer in the OSI
seven layer model. The data link layer splits data into
frames (see fragmentation) for sending on the {physical
layer} and receives acknowledgement frames. It performs error
checking and re-transmits frames not received correctly. It
provides an error-free virtual channel to the network layer.
The data link layer is split into an upper sublayer, {Logical
Link Control} (LLC), and a lower sublayer, {Media Access
Control} (MAC).
Example protocols at this layer are ABP, Go Back N,
SRP.
(1995-02-14)
|
data link level
(foldoc) | data link layer
data link level
layer 2
Layer two, the second lowest layer in the OSI
seven layer model. The data link layer splits data into
frames (see fragmentation) for sending on the {physical
layer} and receives acknowledgement frames. It performs error
checking and re-transmits frames not received correctly. It
provides an error-free virtual channel to the network layer.
The data link layer is split into an upper sublayer, {Logical
Link Control} (LLC), and a lower sublayer, {Media Access
Control} (MAC).
Example protocols at this layer are ABP, Go Back N,
SRP.
(1995-02-14)
|
data link provider interface
(foldoc) | Data Link Provider Interface
DLPI
(DLPI) The interface that a network driver
presents to the (higher level) logical link layer for
driving the network at the datagram level in a Unix
STREAMS environment and possibly elsewhere.
DLPI corresponds to ISO 8802/2 (LLC) which covers both
connection-oriented and connectionless protocols.
[Is this correct? Better explanation?]
(1996-01-29)
|
data link switching
(foldoc) | Data Link Switching
DLSw
(DLSw) A standard for transporting IBM {Systems
Network Architecture} (SNA) and {network basic input/output
system} (NetBIOS) traffic over an Internet protocol network.
Initially, in 1992, DLSw was proprietary to IBM. It was
submitted to the IETF as RFC 1434 in 1993, later updated
by RFC 1795.
(http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/dlsw.htm).
(2008-01-11)
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dynamic data linking
(foldoc) | Dynamic Data Exchange
DDE
Dynamic Data Linking
(DDE, originally Dynamic Data Linking, DDL) A
Microsoft Windows 3 hotlink protocol that allows
application programs to communicate using a client-server
model. Whenever the server (or "publisher") modifies part of
a document which is being shared via DDE, one or more clients
("subscribers") are informed and include the modification in
the copy of the data on which they are working.
(1997-06-05)
|
high-level data link control
(foldoc) | High-level Data Link Control
HDLC
(HDLC) A general-purpose data link control
protocol defined by ISO for use on both point-to-point and
multipoint (multidrop) data links. It supports
full-duplex, transparent-mode operation. It is used
extensively in both multipoint and computer networks.
Some manufacturers and other standards bodies still use their
own acronyms, e.g. IBM's SDLC ({Synchronous Data Link
Control}), the forerunner of HDLC and ANSI's ADCCP
(Advanced Data Communications Control Procedure).
[Fred Halsall, "Data Communications, Computer Networks and
Open Systems" 4th edition, 1996, p.237, Addison-Wesley
Publishing Co. Reading, Mass., USA].
(1997-11-09)
|
synchronous data link control
(foldoc) | Synchronous Data Link Control
(SDLC) An IBM protocol.
A discipline conforming to subsets of the ADCCP of ANSI
and the HDLC of the {International Organization for
Standardization}. SDLC manages synchronous, code-transparent,
bit-serial communication which can be duplex or
half-duplex; switched or non-switched; point-to-point,
multipoint, or loop.
Compare Binary Synchronous Communication.
(1995-03-22)
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