HP StorageWorks 2/140 director product manager user guide - Page 211

Glossary bridge Device that connects and passes packets between two network segments that use the same communications protocol. broadcast Send a transmission to all N_Ports on a fabric. See also multicast. broadcast frames Data packet, also known as a broadcast packet, whose destination address specifies all computers on a network. buffer Storage area for data in transit. Buffers compensate for differences in processing speeds between devices. See also buffer-to-buffer credit. buffer-to-buffer credit (BB_Credit) See buffer-to-buffer credit. Indicates the maximum number of frames a port can transmit without receiving a receive ready signal from the receiving device. CHPID See channel path identifier. call-home Product feature which requires installation of HP Proactive Service software and enables the HAFM server to automatically transmit system events (failure information) to a HP customer support center. The HP support center server accepts calls from the HAFM server, logs reported events, and can notify one or more support center representatives. channel Point-to-point link that transports data from one point to the other. channel path A single interface between a central processor and one or more control units along which signals and data can be sent to perform I/O requests. channel path identifier In a channel subsystem, a value assigned to each installed channel path of the system that uniquely identifies that path to the system. director product manager user guide Glossary-3