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Snmp, Topology, Target – HP Brocade 4Gb SAN Switch for HP BladeSystem c-Class User Manual

Page 153: Simple name server (sns)

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Fabric OS 5.0.0 Advanced Web Tools user guide 153

server

A computer that processes end-user applications or requests.

SFP

Small-form-factor pluggable. A transceiver used on 2 GBps switches that replaces the GBIC.

simple name server

(SNS)

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. SNS is defined by Fibre Channel

standards and exists at a well-known address. Also called directory service or name server.

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. See also

community (SNMP)

.

SNS

See

simple name server (SNS)

.

storage

A device that stores data, such as a disk or tape.

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_Port

s,

F_Port

s, or

FL_Port

s.

syslog

Syslog daemon. Used to forward error messages.

T11

A standards committee chartered with creating standards for Fibre Channel.

target

A storage device on a Fibre Channel network. See also

initiator

.

TCP/IP

Transmission Control Protocol Internet Protocol.

Telnet

A virtual terminal emulation used with TCP/IP. Telnet is sometimes used as a synonym for the

HP StorageWorks Fabric OS CLI.

topology

As applied 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.

Switched fabric. Multiple N_Ports linked to a switch by F_Ports.

Arbitrated loop. Multiple NL_Ports connected in a loop.

translate domain

See

xlate domain

.

trap (SNMP)

The message sent by an SNMP agent to inform the SNMP management station of a critical

error. See also

SNMP

.

trunking

In Fibre Channel technology, a feature that enables distribution of traffic over the combined

bandwidth of up to four ISLs between adjacent switches, while preserving in-order delivery.

tunneling

A technique for enabling two networks to communicate when the source and destination hosts

are both on the same type of network, but are connected by a different type of network.

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.

UDP

User Datagram Protocol. A protocol that runs on top of IP and provides port multiplexing for

upper-level protocols.

well-known address For Fibre Channel technology, a logical address defined by Fibre Channel standards as

assigned to a specific function and stored on the switch.

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