RSCN
Registered state change noti
fi
cation. A switch function that allows noti
fi
cation of
fabric changes to be sent from the switch to the speci
fi
ed nodes.
SAN
Storage area network. A network of systems and storage devices that
communicate using FC protocols.
SDRAM
Synchronous dynamic random access memory. The main memory for a switch.
See also
???
.
sequence
A group of related frames transmitted in the same direction between two
N_ports.
service rate
The rate at which an entity can service requests.
single mode
The
fi
ber optic cabling standard that corresponds to distances up to 10 km
between devices.
SNMP
Simple Network Management Protocol. An Internet management protocol that
uses either IP for network-level functions and UDP for transport functions, or
TCP/IP for both. SNMP can be made available over other protocols (such as
UDP/IP) because it does not rely on the underlying communication protocols.
See also
???
,
???
.
SNS
Simple Name Server. 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. May also be referred to as a
directory service
.
switch
Hardware that routes frames according to FC protocol and is controlled by
software.
switch port
A port on a switch. Switch ports can be E_Ports, F_Ports, or FL_Ports.
SWL
short-wavelength. A type of
fi
ber optic cabling that is based on 850 mm lasers
and supports link speeds up to 2 Gb/s. May also refer to the type of transceiver.
tenancy
The time span that begins when a port wins arbitration in a loop and ends when
the same port returns to the monitoring state. Also called
loop tenancy
.
throughput
The rate of data
fl
ow achieved within a cable, link, or system. Usually measured
in bits per second (b/s).
topology
With respect to FC, the con
fi
guration of the FC network and the resulting
communication paths allowed. There are three possible topologies:
•
Point-to-point: A direct link between two communication ports
•
Switched fabric: Multiple N_Ports linked to a switch by F_Ports
•
Arbitrated loop: Multiple NL_Ports connected in a loop
transmission
character
A 10-bit character encoded according to the rules of the 8b/10b algorithm.
transmission word
A group of transmission characters.
trap (SNMP)
The message sent by an SNMP agent to inform the SNMP management station
of a critical error.
See also
???
.
U_Port
Universal port. A switch port that can operate as a G_Port, E_Port, F_Port, or
FL_Port. A port is de
fi
ned as a U_Port when it is not connected or has not yet
assumed a speci
fi
c function in the fabric.
See also
???
,
???
,
???
.
well-known
address
With respect to FC, a logical address de
fi
ned by the FC standards as assigned
to a speci
fi
c function and stored on the switch.
58
Glossary
Summary of Contents for Brocade 8Gb SAN
Page 5: ...Index 61 Brocade 8Gb SAN Switch for HP BladeSystem c Class 5 ...
Page 8: ...8 ...
Page 12: ...12 About this guide ...
Page 18: ...18 Overview ...
Page 40: ...40 Managing the 8Gb SAN Switch ...
Page 46: ...46 Regulatory compliance and safety ...
Page 48: ...48 Electrostatic discharge ...
Page 52: ...52 SAN Switch technical specifications ...
Page 60: ...60 Glossary ...
