Fore Systems forerunner series, Configuration Manual

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ForeRunner ATM Switch Network Configuration Manual
Glossary - 1
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10Base-T -
a 10 Mbps baseband Ethernet specification utilizing twisted-pair cabling (Category
3, 4, or 5). 10BaseT, which is part of the IEEE 802.3 specification, has a distance limit of approx-
imately 100 meters per segment.
802.1d Spanning Tree Bridging -
the IEEE standard for bridging; a MAC layer standard for
transparently connecting two or more LANs (often called subnetworks) that are running the
same protocols and cabling. This arrangement creates an extended network, in which any two
workstations on the linked LANs can share data.
802.3 Ethernet -
the IEEE standard for Ethernet; a physical-layer standard that uses the
CSMA/CD access method on a bus-topology LAN.
802.5 Token Ring -
the IEEE physical-layer standard that uses the token-passing access method
on a ring-topology LAN.
AAL Connection -
an association established by the AAL between two or more next higher
layer entities.
Adapter -
A fitting that supplies a passage between two sets of equipment when they cannot
be directly interconnected.
Adaptive Differential Pulse Code Modulation (ADPCM) -
A technique that allows analog voice
signals to be carried on a 32K bps digital channel. Sampling is done at 8Hz with 4 bits used to
describe the difference between adjacent samples.
Adaptive Pulse Code Modulation (APCM) -
A technique that effectively reduces occupied band-
width per active speaker by reducing sampling rates during periods of overflow peak traffic.
Address -
A unique identity of each network station on a LAN or WAN.
Address Complete Message (ACM) -
A B-ISUP call control message from the receiving
exchange to sending exchange indicating the completion of address information.
Address Mask -
a bit mask used to identify which bits in an address (usually an IP address) are
network significant, subnet significant, and host significant portions of the complete address.
This mask is also known as the subnet mask because the subnetwork portion of the address
can be determined by comparing the binary version of the mask to an IP address in that sub-
net. The mask holds the same number of bits as the protocol address it references.
Address Prefix -
A string of 0 or more bits up to a maximum of 152 bits that is the lead portion
of one or more ATM addresses.
Address Resolution -
The procedure by which a client associates a LAN destination with the
ATM address of another client or the BUS.
Glossary