packet
A set of information transmitted across a network.
participating
mode
A mode in which an L_Port in a loop has a valid AL_PA and can arbitrate, send
frames, and retransmit received transmissions.
path selection
The selection of a transmission path through the fabric. HP switches use the FSPF
protocol for transmission path selection.
phantom address
An AL_PA value assigned to a device that is not physically in the loop. Also
known as
phantom AL_PA
.
See also
???
,
???
.
phantom device
A device that is not physically in an arbitrated loop but is logically included
through the use of a phantom address.
See also
???
.
PLOGI
Port login. The port-to-port login process by which initiators establish sessions
with targets.
See also
???
.
point-to-point
An FC topology that employs direct links between each pair of communicating
entities.
See also
???
.
port cage
The metal casing extending out of the FC port on the switch and into which a
GBIC or SFP transceiver can be inserted.
Port_Name
The unique identi
fi
er assigned to an FC port. It is communicated during login
and port discovery.
POST
Power-on self-test. A series of diagnostic tests run by a switch after it is powered
on.
primary FCS
switch
Primary Fabric Con
fi
guration Server switch. The switch that actively manages
the con
fi
guration and security parameters for all switches in the fabric.
private loop
An arbitrated loop that does not include a participating FL_Port.
private NL_Port
An NL_Port that communicates only with other private NL_Ports in the same
loop and does not log in to the fabric.
public device
A device that supports arbitrated loop protocol, can interpret 8-bit addresses,
and can log in to the fabric.
See also
???
.
public loop
An arbitrated loop that includes a participating FL_Port and may contain both
public and private NL_Ports.
See also
???
.
public NL_Port
An NL_Port that logs in to the fabric, can function within a public or private
loop, and can communicate with private or public NL_Ports.
See also
???
.
quad
A group of four adjacent ports that share a common pool of frame buffers.
R_A_TOV
Resource allocation time-out value. The maximum time a frame can be delayed
in the fabric and still be delivered.
RAID
Redundant Array of Independent Disks. A collection of disk drives that appear
as a single volume to the server and are fault tolerant through mirroring or
parity checking.
request rate
The rate at which requests arrive at a servicing entity.
route
With respect to a fabric, the communication path between two switches. May
also apply to the speci
fi
c path taken by an individual frame from source to
destination.
routing
The assignment of frames to speci
fi
c switch ports according to frame destination.
RR_TOV
Resource recovery time-out value. The minimum time a target device in a loop
waits after a LIP before logging out a SCSI initiator.
Brocade 8Gb SAN Switch for HP BladeSystem c-Class
57
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 ...
