HP StorageWorks 2/16V Brocade Glossary (53-1000040-03, November 2006) - Page 32

Glossary router routing RR_TOV RSCN RTWR running disparity RW RX RX_ID See Fibre Channel Routing Services. The assignment of frames to specific switch ports, according to frame destination. Resource recovery timeout value. The minimum time a target device in a loop waits after an LIP before logging out an SCSI initiator. See also E_D_TOV and R_A_TOV. Registered state change notification. A switch function that allows notification of fabric changes to be sent from the switch to specified SAN devices. The fabric controller issues RSCN requests to N_Ports and NL_Ports, but only if they have registered to be notified of state changes in other N_Ports and NL_Ports. This registration is performed using the State Change Registration (SCR) Extended Link Service. An N_Port or NL_Port can issue an RSCN to the fabric controller without having completed SCR with the fabric controller. Reliable transport with response. A binary parameter indicating the cumulative disparity (positive or negative) of all previously issued transmission characters. Read/write. Refers to access rights. Receive. See also TX. Responder exchange identifier. A 2-byte field in the frame header that can be used by the responder of the exchange to identify frames as being part of a particular exchange. S S_ID SA SAN SAN architecture SAN device SAS scalability Source ID. Refers to the native port address (24 bit address). Security Association. The collection of security parameters and authenticated keys negotiated between IPSec peers. See also IPSec. Storage Area Network. Can consist of one or more related fabrics and connected SAN devices. Fibre Channel is the most common protocol used in SANs because it was designed specifically for block level networking to optimize performance and availability. See also fabric. The overall design of a storage network solution, which includes one or more related fabrics. Usually either a host or storage device that attaches to a fabric. A SAN device is sometimes referred to as an N_port, NL_port, Nx_port, or node. For point-to-point devices (also known as N_ports) the relationship is one switch port (also known as an F_port) to one N_port. For loop devices (NL_ports) the relationship is one switch loop port (also known as an FL_port) to one or more NL_ports. Brocade Storage Application Services. The ability for a SAN to easily increase the port and switch counts. 28 Brocade Glossary Publication Number: 53-1000040-03