IBM 2109 Service Guide - Page 155

Glossary, IBM 2109 Model S16 Installation and Service Guide

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| | Glossary | This glossary provides definitions for the fibre-channel and switch terminology used | in the IBM 2109 Model S16 Installation and Service Guide. | agent. The interface to a managed device | alias server. A fabric software facility that supports multicast group management. | AL_PA. Arbitrated Loop Physical Address. An 8-bit value used to uniquely identify an individual port within a loop. A | loop may have one or multiple AL_PAs. | ANSI. American National Standards Institute. | arbitrated loop. The FC arbitrated loop (FC-AL) is a standard defined on top of the FC_PH) standard. It defines the | arbitration on a loop where several FC nodes share a common medium. | ASIC. Application specific integrated circuit. | asynchronous transfer mode. A broadband technology for transmitting data over LANs or WANs, based on relaying | cells of fixed size. Provides any-to-any connectivity, and nodes can transmit simultaneously. | ATM. See asynchronous transfer mode. | BIOS. Basic input and output system. | BISR. Built-in self-repair. | BTU. British thermal unit. | CAM. Content addressable memory. | cascading switches. Switches that are interconnected to build large fabrics. | class 2. In class 2 service, the fabric and destination N_port provide connectionless service with notification of | delivery or nondelivery between the two N_ports. | class 3. Class 3 service provides a connectionless service without notification of delivery between N_ports. The | transmission and routing of class 3 frames is the same as for class 2 frames. | class F. A class of service used for interswitch control traffic. It provides connectionless service with notification of | delivery or nondelivery between two E_ports. | community (SNMP). An SNMP community is a relationship between an SNMP agent and a set of SNMP managers | that defines authentication, access control, and proxy characteristics. | COS. Class of service. | CPU. Central processing unit. | credit. Credit, when applied to a switch, is the numeric value that represents the maximum number of receive buffers | provided by an F_port or FL_port to its attached N_port or NL_port respectively such that the N_port or NL_port may | transmit frames without over-running the F_port or NL_port. | daemon. In the AIX operating system, a program that runs unattended to perform a standard service. Some | daemons are triggered automatically to perform their task; other operate periodically. Synonymous with demon. | defined configuration. The complete set of all zone objects that are defined in the fabric. The defined configuration | may include multiple zone configurations. | domain_ID. The domain number uniquely identifies the switch in a fabric. This switch domain ID is normally | automatically assigned by the switch and may be any value between 0 - 31. This number can also be assigned | manually. © Copyright IBM Corp. 1999, 2000 139

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Glossary
This glossary provides definitions for the fibre-channel and switch terminology used
in the
IBM 2109 Model S16 Installation and Service Guide
.
agent.
The interface to a managed device
alias server.
A fabric software facility that supports multicast group management.
AL_PA.
Arbitrated Loop Physical Address. An 8-bit value used to uniquely identify an individual port within a loop. A
loop may have one or multiple AL_PAs.
ANSI.
American National Standards Institute.
arbitrated loop.
The FC arbitrated loop (FC-AL) is a standard defined on top of the FC_PH) standard. It defines the
arbitration on a loop where several FC nodes share a common medium.
ASIC.
Application specific integrated circuit.
asynchronous transfer mode.
A broadband technology for transmitting data over LANs or WANs, based on relaying
cells of fixed size. Provides any-to-any connectivity, and nodes can transmit simultaneously.
ATM.
See
asynchronous transfer mode
.
BIOS.
Basic input and output system.
BISR.
Built-in self-repair.
BTU.
British thermal unit.
CAM.
Content addressable memory.
cascading switches.
Switches that are interconnected to build large fabrics.
class 2.
In class 2 service, the fabric and destination N_port provide connectionless service with notification of
delivery or nondelivery between the two N_ports.
class 3.
Class 3 service provides a connectionless service without notification of delivery between N_ports. The
transmission and routing of class 3 frames is the same as for class 2 frames.
class F.
A class of service used for interswitch control traffic. It provides connectionless service with notification of
delivery or nondelivery between two E_ports.
community (SNMP).
An SNMP community is a relationship between an SNMP agent and a set of SNMP managers
that defines authentication, access control, and proxy characteristics.
COS.
Class of service.
CPU.
Central processing unit.
credit.
Credit, when applied to a switch, is the numeric value that represents the maximum number of receive buffers
provided by an F_port or FL_port to its attached N_port or NL_port respectively such that the N_port or NL_port may
transmit frames without over-running the F_port or NL_port.
daemon.
In the AIX operating system, a program that runs unattended to perform a standard service. Some
daemons are triggered automatically to perform their task; other operate periodically. Synonymous with demon.
defined configuration.
The complete set of all zone objects that are defined in the fabric. The defined configuration
may include multiple zone configurations.
domain_ID.
The domain number uniquely identifies the switch in a fabric. This switch domain ID is normally
automatically assigned by the switch and may be any value between 0 - 31. This number can also be assigned
manually.
© Copyright IBM Corp. 1999, 2000
139
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