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Glossary
configuration data
Configuration data includes: identification data, port configuration data, operating parameters,
SNMP configuration, and zoning configuration. A configuration backup file is required to
restore configuration data if the CTP2 card in a non-redundant director is removed and
replaced.
connectionless
Non-dedicated link. Typically used to describe a link between nodes which allows the switch
to forward Class 2 or Class 3 frames as resources (ports) allow. Contrast this to the dedicated
bandwidth that is required in a Class 1 Fibre Channel Service point-to-point link.
connector
See optical fiber connector.
control processor card
Circuit card that contains the director microprocessor. The CTP2 card also initializes hardware
components of the system after power-on. A 10 Mbps RJ-45 twisted pair connector is located
on the CTP2 card to connect to the Ethernet LAN and communicate with the HAFM server or
a specific management station.
control unit
A hardware unit 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 CTP2 card that communicates with the attached processor
channels to report error conditions and link initialization.
CRC
See cyclic redundancy check.
CTP2
See control processor card.
CUP
See control unit port.
cyclic redundancy check
System of error checking performed at both the sending and receiving station using the value
of a particular character generated by a cyclic algorithm. When the values generated at each
station are identical, data integrity is confirmed.
DASD
Direct access storage device such as a disk drive.
datagram
See Class 3 Fibre Channel service.
Glossary–4
edge switch 2/32 installation guide
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