HP FC Switch Surestore 6164, Reference Manual

Page: 218 / 236

218 HP Surestore FC Switch 6164 Installation and Reference Guide
ATM Asynchronous Transfer Mode. Transport for transmitting data over LANs or
WANs that transmit fixed-length units of data. Provides any-to-any
connectivity and allows nodes to transmit simultaneously.
AW_TOV Arbitration Wait Timeout Value. The minimum time an arbitrating L_Port
waits for a response before beginning loop initialization.
Bandwidth The total transmission capacity of a link, cable, or system.
BB_Credit Buffer-to-buffer credit. The number of frames that can be transmitted to a
directly connected recipient or within an arbitrated loop. Determined by
number of available receive buffers. See also Buffer-to-buffer flow control,
EE_Credit.
Beginning Running
Disparity The disparity at the transmitter or receiver when the special character
associated with an ordered set is encoded or decoded. See also
Disparity .
BER Bit Error Rate. Rate at which bits are expected to be received in error.
Expressed as ratio of error bits to total bits transmitted. See also Error.
Bit synch-ronization The delivery of correctly clocked bits at the required BER. See also BER.
Block As applied to fibre channel, upper level application data that is transferred
in a single sequence.
Broadcast Transmission of data from a single source to all devices in fabric, regardless
of zoning. See also Multicast, Unicast.
Buffer
-
to
-
buffer flow
control
Management of frame transmission rate between directly connected ports or
within an arbitrated loop. See also BB_Credit.
Cascade Two or more interconnected fibre channel switches.
Circuit Established communication path between ports. Consists of two virtual
circuits that transmit in opposite directions. See also Link.
Class 1 A connection-oriented service that provides a dedicated connection between
two ports, with notification of delivery or nondelivery.
Class 2 A multiplex and connectionless frame switching service between two ports,
with notification of delivery or nondelivery.