HP 316095-B21 - StorageWorks Edge Switch 2/24 Podręcznik - Strona 8

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HP 316095-B21 - StorageWorks Edge Switch 2/24 Podręcznik
Glossary
connectionless
Nondedicated link. Typically used to describe a link between nodes that allows the switch to
forward Class 2 or Class 3 frames as resources (ports) allow. Contrast this type of link to the
dedicated bandwidth that is required in a Class 1 Fibre Channel Service point-to-point link.
connectivity attribute
In S/390 mode, the characteristic that determines port address status for the director or switch.
See also
allowed
connection,
dynamic
connection,
connectivity capability
(1) The capability that allows attachment of a device to a system without requiring physical
reconfiguration of either the device or the interconnections. (2) The director or switch capability
that allows logical manipulation of link connections to provide physical device attachment. See
also
active port address
connectivity control
In S/390 mode, in a director or switch, the method used to change port address connectivity
attributes and determine the communication capability of the link attached to the port. See also
active port address
connector
See
optical fiber
connector.
control processor card
(CTP card) — Circuit card that contains the director microprocessor. The CTP card also
initializes hardware components of the system after power-on. A 10 Mbps RJ-45 twisted pair
connector is located on the CTP card to connect to an Ethernet LAN and communicate with the
HAFM server or a specific management station.
control unit
A device that controls the reading, writing, or displaying of data at one or more input/output
units.
control unit port
An internal director port on the CTP card that communicates with the attached IBM S/390 or
similar processor channels to report error conditions and link initialization.
CRC
See
cyclic redundancy
CTP card
See
control processor
CUP
See
control unit
port.
8
blocked
connection,
dynamic
connectivity, and
matrix,
connectivity
matrix,
connectivity
check.
card.
connectivity
unblocked
connection.
attribute, and
connectivity
attribute, and
connectivity
capability,
connectivity
control.
capability.
Directors and Edge Switches Glossary
control,