director 2/64 installation guide

Glossary–4 director 2/64 installation guide
Glossary
Class 3 Fibre Channel service
Provides a connectionless (not dedicated) service without notification of delivery or
nondelivery between two N_Ports. Also known as datagram.
community profile
Information that specifies which management objects are available to what management
domain or SNMP community name.
concurrent maintenance
Ability to perform maintenance tasks, such as removal or replacement of field-replaceable
units, while a hardware product is operating.
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.