Technical data

Brocade SilkWorm 4100 Hardware Reference Manual Glossary-5
Publication Number: 53-0000563-02
Class 1 service The class of frame-switching service for a dedicated connection between two communicating ports
(also called “connection-oriented service”). Includes acknowledgement of frame delivery or
nondelivery.
Class 2 service A connectionless class of frame-switching service that includes acknowledgement of frame delivery or
nondelivery.
Class 3 service A connectionless class of frame-switching service that does not include acknowledgement of frame
delivery or nondelivery. Can be used to provide a multicast connection between the frame originator
and recipients, with acknowledgement of frame delivery or nondelivery.
Class 4 service A connection-oriented service that allows fractional parts of the bandwidth to be used in a virtual
circuit.
Class 6 service A connection-oriented multicast service geared toward video broadcasts between a central server and
clients.
Class F
service
The class of frame-switching service for a direct connection between two switches, allowing
communication of control traffic between the E_Ports. Includes acknowledgement of data delivery or
nondelivery.
class of
service
A specified set of delivery characteristics and attributes for frame delivery.
CLI Command line interface. An interface that depends entirely on the use of commands, such as through
telnet or SNMP, and does not involve a GUI.
client An entity that, using its common transport (CT), makes requests of a server.
CLS Close primitive signal. Used only in an arbitrated loop. Sent by an L_Port that is currently
communicating in the loop, to close communication with another L_Port.
CM Central memory.
CMA Central memory architecture. An architecture centralizing memory usage in switches.
CMBISR Central memory built-in self-repair.
CMT Central memory test.
comma A unique pattern (either 1100000 or 0011111) used in 8b/10b encoding to specify character alignment
within a data stream. See also K28.5.
community
(SNMP)
A relationship between a group of SNMP managers and an SNMP agent, in which authentication,
access control, and proxy characteristics are defined. See also SNMP.
compact flash Flash (temporary) memory that is used in a manner similar to hard disk storage. It is connected to a
bridging component that connects to the PCI bus of the processor. Not visible within the processor's
memory space.
configuration (1) A set of parameters that can be modified to fine-tune the operation of a switch. Use the configshow
command to view the current configuration of your switch.