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Topology, Zone, Zone configuration – HP Brocade 8Gb SAN Switch for HP BladeSystem c-Class User Manual

Page 61: U_port, Switch, Trap (snmp)

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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 fiber 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 flow achieved within a cable, link, or system. Usually measured
in bits per second (b/s).

topology

With respect to FC, the configuration 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

SNMP

.

U_Port

Universal port. A switch port that can operate as a G_Port, E_Port, F_Port, or
FL_Port. A port is defined as a U_Port when it is not connected or has not yet
assumed a specific function in the fabric. See also

E_port

,

F_port

,

G_Port

.

well-known
address

With respect to FC, a logical address defined by the FC standards as assigned
to a specific function and stored on the switch.

workstation

A computer used to access and manage the fabric. May also be called a
management station or host.

WWN

World wide name. An identifier that is unique worldwide. Each entity in a fabric
has a distinct WWN.

zone

A set of devices and hosts attached to the same fabric and configured as being
in the same zone. Devices and hosts within the same zone have access permission
to others in the zone, but are not visible to any outside the zone. See also

defined

zone configuration

,

enabled zone configuration

.

zone configuration A specified set of zones. Enabling a configuration enables all zones in that

configuration. See also

defined zone configuration

,

enabled zone configuration

.

Brocade 8Gb SAN Switch for HP BladeSystem c-Class

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