Sun Microsystems 1.0 User Manual

Page 168

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142

SunFDDI/P 1.0 Adapter User’s GuideMay 1997

CMT

(connection management). The portion of the FDDI SMT that manages the
operation of physical layer insertion and removal, and the logical connection of
PHY entities to the MAC entities.

DAS

(dual attachment station). An FDDI station that connects to both primary and
secondary rings; a Class A station, capable of dynamic reconfiguration to
accommodate certain levels of failure. Two rings are used to interconnect the
stations so that the failure of any station or link causes the remaining stations
to reconfigure the network to maintain connectivity: wrapping.

dotted decimal notation

A way of representing the 32-bit Internet address: four decimal integers
separated by decimal points, where each integer is the decimal value of one
octet of the Internet address. For example, the 32-bit Internet address (binary)

11000000 00001001 11001001 00000111

is represented as

192.9.201.7

(decimal).

ECM

(Entity Coordination Management). The portion of CMT that manages the media
interface to the FDDI network, which includes coordinating the activity of all
the PHYs associated with that physical attachment and controlling the optional
optical bypass function within the station.

FDDI

(Fiber Distributed Data Interface). A standard specified by the American National
Standards Institute for fiber optic links of up to 100 Mbits/s.

gateway

A dedicated computer that connects to two or more networks and routes
packets from one network “community” to the other. Gateways route packets
to other gateways until the packets can be delivered directly to their specified
destination across one physical network. In general usage, the term identifies
any computer that transfers information between networks.

kbps

(kilobits per second). A measure of the rate of data transmission. See also, baud,
bps, Bps, and Mbps.

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