HP StorageWorks 2/64 HP StorageWorks Fabric OS 5.x Command Reference Guide (AA - Page 797
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Glossary 8b/10b encoding address identifier AL_PA AL_TIME alias alias address identifier alias AL_PA alias server ANSI arbitrated loop arbitration area number ARP ARR ASD ASIC ATM authentication An encoding scheme that converts each 8-bit byte into 10 bits. Used to balance 1s and 0s in high-speed transports. A 24-bit or 8-bit value used to identify the source or destination of a frame. See also S_ID and D_ID. Arbitrated-loop physical address. A unique 8-bit value assigned during loop initialization to a port in an arbitrated loop. Arbitrated-loop timeout value. Twice the amount of time it would take for a transmission word to propagate around a worst-case loop. The default value is 15 milliseconds (ms). A logical grouping of elements in a fabric. An alias is a collection of port numbers and connected devices, used to simplify the entry of port numbers and WWNs when creating zones. An address identifier recognized by a port in addition to its standard identifier. An alias address identifier can be shared by multiple ports. See also alias. An AL_PA value recognized by an L_Port in addition to the AL_PA assigned to the port. See also AL_PA. A fabric software facility that supports multicast group management. American National Standards Institute. A shared 100-Mb/sec Fibre Channel transport structured as a loop. Can support up to 126 devices and one fabric attachment. See also topology. A method of gaining orderly access to a shared-loop topology. In HP Fabric OS v4.0 and above, ports on a switch are assigned a logical area number. Port area numbers can be viewed by entering the switchShow command. They are used to define the operative port for many Fabric OS commands: for example, area numbers can be used to define the ports within an alias or zone. Address Resolution Protocol. A TCP/IP function for associating an IP address with a link-level address. Asynchronous response router. Refers to Management Server GS_Subtype Code E4, which appears in portLogDump command output. Alias server daemon. Used for managing multicast groups by supporting the create, add, remove, and destroy functions. Application-specific integrated circuit. Asynchronous Transfer Mode. A transport used for transmitting data over LANs or WANs that transmit fixed-length units of data. Provides any-to-any connectivity and allows nodes to transmit simultaneously. The process of verifying that an entity in a fabric (such as a switch) is what it claims to be. See also digital certificate, switch-to-switch authentication. Fabric OS 5.x command reference guide 797
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