HP StorageWorks 2/16V Brocade Glossary (53-1000040-03, November 2006) - Page 30

Glossary proxy device A virtual device present in a local fabric that represents a physical device connected to a different edge fabric. From the perspective of a local device that is physically connected to a fabric, a proxy device is said to be imported; from the perspective of the remote fabric, the proxy device is said to be exported. pstate Port State Machine. PSU Power supply unit. public device A device that supports arbitrated-loop protocol, can interpret 8-bit addresses, and can log in to the fabric. public key The public half of a key pair. See also key and key pair. public key cryptography A type of cryptography that uses a key pair, with the two keys in the pair called at different points in the algorithm. The sender uses the recipient's public key to encrypt the message, and the recipient uses the recipient's private key to decrypt it. See also key pair and PKI. public loop An arbitrated loop that includes a participating FL_Port and can contain both public and private NL_Ports. public NL_Port An NL_Port that logs in to the fabric, can function within either a public or a private loop, and can communicate with either private or public NL_Ports. Q QLA QLFA QoS queue QuickLoop QuickLoop mode A type of Fibre Channel controller. QuickLoop Fabric Assist. Arbitrated-loop technology. Quality of service. A mechanism for each AL_PA address that allows for collecting frames prior to sending them to the loop. A Brocade software product that allows multiple ports on a switch to create a logical loop. Devices connected via QuickLoop appear to each other as if they are on the same arbitrated loop. Allows initiator devices to communicate with private or public devices that are not in the same loop. R R_A_TOV Resource allocation timeout value. The maximum time a frame can be delayed in the fabric and still be delivered. See also E_D_TOV, RR_TOV. R_CTL Route control. The first 8 bits of the header, which defines the type of frame and its contents. R_RDY Receiver ready. A primitive signal indicating that the port is ready to receive a frame. 26 Brocade Glossary Publication Number: 53-1000040-03