Technical data

Glossary-26 Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
RX_ID 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 Source ID. Refers to the native port address (24 bit address).
SAN Storage area network. A network of systems and storage devices that communicate using Fibre Channel
protocols. See also fabric.
SAN
architecture
The overall design of a storage network solution, which includes one or more related fabrics, each of
which has a topology.
SAN port
count
The number of ports available for connection by nodes in the entire SAN.
SCA Type of connector.
scalability One of the properties of a SAN: the size to which a SAN topology can grow port and switch counts with
ease.
SCC SC connector. An SC connector is a fiber-optic cable connector that uses a push-pull latching
mechanism similar to common audio and video cables. For bidirectional transmissions, two fiber cables
and two SC connectors (dual SC) are generally used. SC is specified by the TIA as FOCIS-3.
SCN State change notification. Used for internal state change notifications, not external changes. This is the
switch logging that the port is online or is an Fx_Port, not what is sent from the switch to the Nx_Ports.
SCR State change registration. Extended Link Service (ELS) requests the fabric controller to add the N_Port
or NL_Port to the list of N_Ports and NL_Ports registered to receive the Registered State Change
Notification (RSCN) Extended Link Service.
SCSI Small Computer Systems Interface. A parallel bus architecture and a protocol for transmitting large data
blocks to a distance of 15 to 25 meters.
SCSI-2 An updated version of the SCSI bus architecture.
SCSI-3 An SCSI standard that defines transmission of SCSI protocol data over different kinds of links.
SDRAM The main memory for a switch.
sectelnet A protocol similar to telnet but with encrypted passwords for increased security.
Secure Fabric
OS
An optionally licensed Brocade feature that provides advanced, centralized security for a fabric.
security policy Rules that determine how security is implemented in a fabric. Security policies can be customized
through Brocade Secure Fabric OS or Brocade Fabric Manager.
SEQ_ID Sequence identifier. A 1-byte field in the frame header change to identify the frames as being part of a
particular exchange sequence between a pair of ports.