device such as a router, bridge, or hub to act as an FEP
to an ATM network by using a special DSU that
accomplishes packet encapsulation.
addresses dynamically.
ical network revisions.
of all devices on the internetwork. The server will then
assign dynamically used VLANs.
transmission lines are available for lease from com-
mon carriers for private use.
international telecommunication numbering, particu-
larly in ISDN, SMDS, and BISDN. (2) Label of field in
an ATM address containing numbers in E.164 format.
of this channel can be found in the 1984 ITU-T ISDN
specification, but was dropped from the 1988 version.
See also: B, D, and H channels.
control access to the data-switching bus. EARL also
controls the destination ports of packet transfers.
and Token Ring) and ATM interfaces based on infor-
mation in the Data-Link and Network layers. An edge
device does not take part in the running of any Net-
work layer routing protocol; it merely uses the route
description protocol in order to get the forwarding
information required.
facture, these nonvolatile memory chips can be erased
See also: EPROM, PROM.
in an ATM network. The EFCI may be set by any net-
work element that is in a state of immediate or certain
congestion. The destination end-system is able to carry
out a protocol that adjusts and lowers the cell rate of
the connection based on value of the EFCI. See also:
ABR.
10Mbps AUI ports to support Ethernet Version 1 and
Ethernet Version 2 or IEEE 802.3 interfaces with a
high-speed data path to other interface processors.
either an Ethernet or Token Ring LAN. Multiple
ELANs can exist at the same time on a single ATM
network and are made up of a LAN emulation client
(LEC), a LAN Emulation Server (LES), a Broadcast
and Unknown Server (BUS), and a LAN Emulation
Configuration Server (LECS). ELANs are defined by
the LANE specification. See also: LANE, LEC, LECS,
and LES.
above the standard Ethernet Data-Link layer.
protocol data unit (PDU) from the layer above. As an
example, in Internet terminology, a packet would con-
tain a header from the Physical layer, followed by a
header from the Network layer (IP), followed by a
header from the Transport layer (TCP), followed by
the application protocol data.
unauthorized access. Every encryption scheme uses
some well-defined algorithm, which is reversed at the
receiving end by an opposite algorithm in a process
known as decryption.