Technical data

Fabric OS Administrator’s Guide Glossary-17
Publication Number: 53-0000518-09
SNMP Simple Network Management Protocol. An Internet management protocol that uses either IP for
network-level functions and UDP for transport-level functions, or TCP/IP for both. Can be made
available over other protocols, such as UDP/IP, because it does not rely on the underlying
communication protocols.
SNS Simple Name Server.
SOF Start of frame. A group of ordered sets that marks the beginning of a frame and indicates the class of
service the frame will use.
SONET Synchronous optical network. A standard for optical networks that provides building blocks and
flexible payload mappings.
special
character
A 10-bit character that does not have a corresponding 8-bit value but is still considered valid. The
special character is used to indicate that a particular transmission word is an ordered set. This is the only
type of character to have five 1s or 0s in a row.
SSH Secure shell. Used starting in Brocade Fabric OS v4.1.0 to support encrypted telnet sessions to the
switch. SSH encrypts all messages, including the client sending the password at login.
switch A fabric device providing bandwidth and high-speed routing of data via link-level addressing.
switch name The arbitrary name assigned to a switch.
switch port A port on a switch. Switch ports can be E_Ports, F_Ports, or FL_Ports.
switch-to-
switch
authentication
The process of authenticating both switches in a switch-to-switch connection using digital certificates.
See also “authentication”, “digital certificate”.
syslog Syslog daemon. Used to forward error messages.
T
T11 A standards committee chartered with creating standards for Fibre Channel.
target A storage device on a Fibre Channel network. See also “initiator”.
TC Track changes.
telnet A virtual terminal emulation used with TCP/IP. "Telnet" is sometimes used as a synonym for the
Brocade Fabric OS CLI.
tenancy The time from when a port wins arbitration in a loop until the same port returns to the monitoring state.
Also referred to as "loop tenancy."
Time Server A Fibre Channel service that allows for the management of all timers.
topology As it applies to Fibre Channel technology, the configuration of the Fibre Channel network and the
resulting communication paths allowed. There are three possible topologies:
Point to point. A direct link between two communication ports.