Brocade Glossary 29
Publication Number: 53-1000040-03
Glossary
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.
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 m.
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 centralized security tools for a fabric. DCC and
SCC ACLs are available in base Fabric OS to enable FICON cascading starting with v5.2.0. See also
DCC, SCC, and ACL.
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.
sequence A group of related frames transmitted in the same direction between two N_Ports.
sequence
initiator
The N_Port that begins a new sequence and transmits frames to another N_Port.
sequence
recipient
Serializing/deserializing circuitry. A circuit that converts a serial bit stream into parallel characters, and
vice-versa.
serial The transmission of data bits in sequential order over a single line.
server A computer that processes end-user applications or requests.
SES SCSI Enclosure Services. A subset of the SCSI protocol used to monitor temperature, power, and fan
status for enclosed devices.
session The connection between the Web Tools client and its managed switch.
SFP Small-form-factor pluggable. A transceiver used on 2-Gbit/sec and 4-Gbit/sec directors and switches
that replaces the GBIC.
SilkWorm The brand name for the Brocade family of switches, switch modules, and directors.
Simple Name
Server (SNS)
A switch service that stores names, addresses, and attributes for up to 15 minutes and provides them as
required to other devices in the fabric. SNS is defined by Fibre Channel standards and exists at a well-
known address. Also referred to as “directory service” or “name server.”
