Public device, Public loop, Snmp – HP Brocade 8Gb SAN Switch for HP BladeSystem c-Class User Manual
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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 specific path taken by an individual frame from source to
destination.
routing
The assignment of frames to specific 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.
RSCN
Registered state change notification. A switch function that allows notification of
fabric changes to be sent from the switch to the specified 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 fiber 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
,
.
Glossary
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