HP Surestore 64 FW 05.01.00 and SW 07.01.00 HP StorageWorks Directors and Edge - Page 4

Glossary agent Software that processes queries on behalf of an application and returns replies. alarm Simple network management protocol (SNMP) message notifying an operator of a network or device problem. allowed connection In S/390 mode in a director or switch, the attribute that, when set, establishes dynamic connectivity capability. See also blocked connection, connectivity attribute, dynamic connectivity, and unblocked connection. alias server Fabric software facility that supports multicast group management. allowed port connection In S/390 mode, this attribute establishes dynamic connectivity capability. area The second byte of the node port (N_Port) identifier. arbitrated loop One of the three connection topologies offered by Fibre Channel protocol. Up to 126 node ports and one fabric port can communicate without the need for a separate switched fabric. arbitrated loop physical address (AL_PA) - A 1-byte value used in the arbitrated loop topology that identifies loop ports (L_Ports). This value then becomes the last byte of the address identified for each public L_Port on the loop. arbitration Process of choosing one device from a collection of devices that request service simultaneously. attribute In S/390 mode, the connection status of the address on a configuration matrix: allowed, blocked, or prohibited. audit log Log summarizing actions (audit trail) made by the user. authentication Verification of identity for a person or process. backbone Cable on which two or more stations or networks may be attached, typically used to link computer networks at one site with those at another. Smaller branch networks are sometimes called ribs. 4 Directors and Edge Switches Glossary