Storage AreaNetworking GLOSSARY CAM Bypass circuitry Broadcast Camp on Alias server BB_Credit Bandwidth ATM ASIC ARP Arbitration ARB Arbitrated Loop ANSI Access fairness ACK ACC ABTS Active copper Access method AL_TIME AL_PA Address identifier from the data path when valid signals are dropped. are signals valid when path data the from recipient. the order received. order the in satisfied are they that so requests connect transmission word to propagate around a worst-case loop. The default value is 15ms. is value default The loop. worst-case a around propagate to word transmission any-to-any connectivity and nodes can transmit simultaneously.transmit can nodes and connectivity any-to-any provides It data. of units fixed-length WANstransmits or that LANs over data mitting address). MAC (link-level Ethernet loop. the to access arbitrating is port the indicate to L_Port an by word fill the as mitted priorities. AL_PAshigher lower have with Ports fabric. a to attachment 1 and devices 126 of management. group multicast support to mappings identifier maintain will and FFFFF8 1+ frames from Class 1 or Class 2 services. 2 Class or 1 Class from frames 1+ completed. been has request the that indicates and FLOGI) as Arbitrated Loop. Arbitrated pating in an arbitrated loop. arbitrated an in pating respectively.D_ID) and (S_ID frame the of ID destination the and ID source the indicates identifier header,address frame the a In devices. cating devices. between Accept link service reply; a the normal reply to an Extended Link Service request (such request Service Link Extended an to reply normal the a reply; service link Accept Address Resolution Protocol; a TCP/IP function for translating an IP address to an to address IP an translating for function TCP/IP a Protocol; Resolution Address Arbitrative Primitive Signal; this applies only to an Arbitrated Loop topology,trans- Loop is Arbitrated and an to only applies this Signal; Primitive Arbitrative Acknowledgement frame; used for end-to end- flow control, that verifies receipt of a of receipt verifies that control, flow end- end-to for used frame; Acknowledgement Asynchronous Transfer Mode; a high-speed packet-switching transport used for trans- for used Transfertransport Asynchronous packet-switching high-speed a Mode; Application-Specific Integrated Circuit. Integrated Application-Specific Content addressable memories. addressable Content American National Standards Institute; the governing body for standards in the U.S. the in standards for body governing the Institute; Standards National American Abort Basic Link Service. Link Basic Abort Arbitrated Loop Physical Address; an 8-bit value used to identify a device partici- device a identify to used value 8-bit an Address; Physical Loop Arbitrated Arbitrated Loop Timeout value; twice the amount of time it would take for a for take would it time of amount the twice Timeoutvalue; Loop Arbitrated Proposed as an optimization for fabric queue fabric for optimization an as Proposed Buffer-to-buffer credit; used to determine how many frames can be sent to to sent be can frames many how determine to used Buffer-to-buffercredit; Sending a transmission to all N_Ports on a fabric. a on N_Ports all to transmission a Sending A method of gaining orderly access to a shared-loop topology. shared-loop a to access orderly gaining of method A The transmission capacity of the cable, link or system. or link cable, the of capacity transmission The A proposed standard as part of FC-PH-3, will use the well-known address well-known the use will FC-PH-3, of part as standard proposed A A fibre channel connection that allows up to 33m-length copper cabling copper 33m-length to up allows that connection channel fibre A The method used to access a physical medium in order to transmit data. transmit to order in medium physical a access to used method The A process by which contending nodes are guaranteed access to an to access guaranteed are nodes contending which by process A A shared 100MBps fibre channel transport supporting up to a maximum a to up supporting transport channel fibre 100MBps shared A Circuits that automatically remove a device a remove automatically that Circuits A 24-bit number used to indicate the link-level address of communi- of address link-level the indicate to used number 24-bit A Storage AreaNetworking GLOSSARY Community CLS DLS Disparity Dedicated simplex Datagram Cut-through Credit CRC COS Controller Domain ID Class F Class 6 Class 4 Class 3 Class 2 Class 1 CIM Channel CDR Cascade currently communicating on the loop, to close communication to other L_Port. other to communication close to loop, the on communicating currently Fabric. the of configuration and coordination control, for used E_Ports, between of 1s and 0s. and 1s of number equal and contains disparity neutral 0s, more contains disparity negative 1s, more recipient. a as N_Port another to connection 1 Class separate a Initiator,have an and as N_Port another with session receipt. of confirmation no with fabric, the to attached devices received. is frame the of address destination the F/FL_Port. the overrunning without frames transmit may N/NL_Port the that such N/NL_Port attached its to F/FL_Port an device peripheral the of part is typically controller The device. characteristics. proxy and control access authentication, defines that managers when an Fx or E_Port comes up or down. or up comes E_Port or Fx an when Series switch that identifies the switch to a fabric. a to switch the identifies that switch Series central server and clients. and server central used in a virtual circuit. virtual a in used between N_Ports. between between N_Ports. between be managed by a common application. common a by managed be 239. SilkWormto up 2000s 32; to up SilkWormcascade limit. can the 1000s is cascading of levels Seven distance. Close Primitive Signal; only in an Arbitrated Loop, is sent by an L_Port which is which L_Port an by sent is Loop, Arbitrated an in only Signal; Primitive Close Dynamic Load Sharing; allows for recomputing of routes of recomputing for allows Sharing; Load Dynamic Common Information Model; a management structure enabling disparate resources to resources disparate enabling structure management a Model; Information Common Cyclic Redundancy Check; a self-test for error detection and correction. and detection error for self-test a Check; Redundancy Cyclic Clock and data recovery circuitry.recovery data and Clock Class Of Service. Of Class A numeric value that represents the maximum number of receive buffers provided by provided buffers receive of number maximum the represents that value numeric A A connectionless class of service that gives notification of delivery or non-delivery or delivery of notification gives that service of class connectionless A A connection-oriented multicast service geared towards video broadcasts between a between broadcasts video towards geared service multicast connection-oriented A A connection-oriented service that allows fractional parts of the bandwidth to be to bandwidth the of parts fractional allows that service connection-oriented A A connectionless class of service the requires no acknowledgment of frame delivery frame of acknowledgment no requires the service of class connectionless A A connectionless class of service that requires acknowledgment of frame delivery frame of acknowledgment requires that service of class connectionless A delivery.frame of acknowledgment requires that service of class connection-oriented A A point-to-point link whose task is to transport data from one point to another.to point one from data transport to is task whose link point-to-point A Connecting 2+ fibre channel hubs or switches to increase port capacity or capacity port increase to switches or hubs channel fibre 2+ Connecting The relationship of 1s and 0s in an encoded character; positive disparity contains disparity positive character; encoded an in 0s and 1s of relationship The A computer module that interprets signals between a host and a peripheral a and host a between signals interprets that module computer A A Class 3 Fibre Channel service that allows data to be sent quickly to multiple to quickly sent be to data allows that service Channel Fibre 3 Class A A unique number between 1 and 239 on a 2000 a on 239 and 1 between number unique A A relationship in SNMP between an SNMP agent and a set of SNMP of set a and agent SNMP an between SNMP in relationship A A switching technique that allows a routing decision to be made as soon as soon as made be to decision routing a allows that technique switching A A means that permits a single N_Port to simultaneously initiate a initiate simultaneously to N_Port single a permits that means A Storage AreaNetworking GLOSSARY FC-GS FC-FLA FC-FG FC-CT FC-AV FC-AL FC-4 FC-3 FC-2 FC-1 FC-0 FC-PH-3 FC-PH-2 FC-PH FC_IP FC-GS-2 FAN Fabric F_Port Exchange EOF Emulex ELP F_BSY DWDM EE_Credit E_D_TOV b1bencoding 8b/10b E_Port SCSI an IP onto the Fibre Channel Protocol. Channel Fibre the onto IP an SCSI usage. set ordered and management FAN.supports switch the if re-initializes and transmission speeds. transmission and types media plants, cable for used signaling indicates also and Protocol, Channel Fibre the of layers FC-2 FC-1and FC-0 a switch. a busy.is N_Port destination or fabric the because delivered characters; used for balancing 1s and 0s in high-speed transports. high-speed in 0s and 1s balancing for used characters; N_Ports . They are composed of 1+ related sequences and work either uni- or bi-directionally.or uni- either work and sequences related 1+ of composed are They . N_Ports require before declaring an error condition. error an declaring before require fiber.same the cating devices, and set the maximum number of frames that may remain unacknowledged. remain may that frames of number maximum the set and devices, cating Extended Link Process. Link Extended End Of Frame; a group of ordered sets used to mark the end of a frame. a of end the mark to used sets ordered of group a Frame; Of End Fabric Address Notification; keeps the AL_PA and fabric address when loop when address AL_PAfabric the and keeps Notification; Address Fabric This layer handles standards and profiles for mapping upper level protocols like protocols level upper mapping for profiles and standards handles layer This node. a in N_Ports multiple by used services common contains layer This sequence/exchange format, frame protocol, and framing handles layer This scheme. encoding 8b/10b the contains layer This media. physical the represents it transport, channel fibre on layer Lowest Fibre channel over IP protocol. IP over channel Fibre Fibre Channel Common Transport.Common Channel Fibre Fibre Channel Arbitrated Loop. Arbitrated Channel Fibre Fibre Channel Generic requirements. Generic Channel Fibre Fibre Channel Audio Visual.Audio Channel Fibre Fabric Port Busy Frame; a frame issued by the fabric to indicate a frame cannot be cannot frame a indicate to fabric the by issued frame a Frame; Busy Port Fabric Fibre Channel generic services. generic Channel Fibre The fibre channel physical and signaling standard for standard signaling and physical channel fibre The One of three fibre channel topologies, when N_Ports are connected to F_Ports on F_Ports to connected are N_Ports when topologies, channel fibre three of One A fabric port to which an N_Port attaches. N_Port an which to port fabric A An expansion port connecting two switches to make a fabric. a make to switches two connecting port expansion An Fibre Channel Fabric Loop Attachment. Loop Fabric Channel Fibre Dense Wave Digital Multiplexing; see WDW. Allows for more wavelengths to use to WDW.wavelengths Wavesee more Dense Multiplexing; for Digital Allows A brand of host bus adapter.bus host of brand A Fibre Channel 2nd generation generic services. generic generation 2nd Channel Fibre 3rd generation physical interface. physical generation 3rd interface. physical generation 2nd Error-Detect Time Out Value; the maximum round trip time an operation could operation an time trip Value;Error-DetectTimeround Out maximum the End-to-end credit; used to manage the exchange of frames by two communi- two by frames of exchange the manage to used credit; End-to-end The highest-level fibre channel mechanism used for communication between communication for used mechanism channel fibre highest-level The An encoding scheme that converts an 8-bit byte into 2 possible 10-bit possible 2 into byte 8-bit an converts that scheme encoding An Storage AreaNetworking GLOSSARY Fractional Bandwidth Fabric FLOGI Flash FSP FRU Frame F_RJT FC-SW-2 FC-SW FC_SB FCIA FC_VI FDDI FCP FL_Port Fill word FFFFFF FFFFFE FFFFFD FFFFFC FFFFFB FFFFFA FFFFF9 FFFFF8 FFFFF7 FFFFF6 FFFFF5 gateway to the fabric for NL_Ports on a loop. a on NL_Ports for fabric the to gateway swapped out upon failure. upon out swapped bytes. 4 is CRC the and bytes, 0-2112 be can delimiter.payload (EOF) The end-of-frame an N_Port. per connections 4 Class 254 of maximum or topology.or type fabric the to transparent services, all for protocol level initialization of fibre channel switches to create a mutli-switch fibre channel fabric. channel fibre mutli-switch a create to switches channel fibre of initialization unavailable. is N_Port there’sor header,an supported, invalid or not an is class because maybe denied, being is channel fabric. channel fibre mutli-switch a create to switches channel fibre of initialization and interconnection broadest market for fibre channel products. channel fibre for market broadest (MAN); a network based on the use of optical-fibre cable to transmit data at 100 Mbit/sec. 100 at data transmit to cable optical-fibre of use the on based network a (MAN); Fibre Channel Service Protocol; The common FC-4 common The Protocol; Service Channel Fibre Fibre Channel Protocol; SCSI to fibre channel mapping. channel fibre to SCSI Protocol; Channel Fibre Field Replaceable Unit; a component that can be can that component a Unit; Replaceable Field Fibre Channel Industry Association; their mission is to nurture and help develop the develop help and nurture to is mission their Association; Industry Channel Fibre Fibre Distributed Data Interface; ANSI architecture for a Metropolitan Area Network Area Metropolitan a for architecture ANSI Interface; Data Distributed Fibre Programmable NVRAM memory that maintains its contents. its maintains that memory NVRAM Programmable Fabric Port Reject Frame; a frame issued by the fabric to indicate delivery of a frame a of delivery indicate to fabric the by issued frame a Frame; Reject Port Fabric Fibre Channel VirtualInterface. Channel Fibre Fibre Channel Single Bytes. Single Channel Fibre Fabric Login; a process by which a node makes a logical connection to a fabric switch. fabric a to connection logical a makes node a which by process a Login; Fabric One or more fibre channel switches in some networked topology.networked some in switches channel fibre more or One Well-known address for broadcast alias-ID. Well-knownbroadcast for address Well-known fibre channel address for a fabric F_Port. fabric a for Well-knownaddress channel fibre A data unit containing a start-of-frame (SOF) delimiter,and (SOF) header,CRC start-of-frame payload, a containing unit data A Fibre Channel Switch Fabric; specifies tools and algorithms for interconnection and interconnection for algorithms and tools specifies Fabric; Switch Channel Fibre Well-known fibre channel address directory server.directory Well-knownaddress channel fibre Well-known fibre channel address for a time server.time a for Well-knownaddress channel fibre Well-known fibre channel address for a QoS facilitator.QoS a for Well-knownaddress channel fibre server.alias an for Well-knownaddress channel fibre server.distribution key security a for Well-knownaddress channel fibre server.synchronization clock a for Well-knownaddress channel fibre Well-known fibre channel address for a Class 6 multicast server.multicast 6 Class a for Well-knownaddress channel fibre Well-known fibre channel address for a management server.management a for Well-knownaddress channel fibre Well-known fibre channel address for a fabric controller.fabric a for Well-knownaddress channel fibre A fabric loop port to which a loop attaches; needs FL card LED turned on. It is the is It on. turned LED card FL needs attaches; loop a which to port loop fabric A Fibre Channel Switch Fabric (2nd generation); specifies tools and algorithms for algorithms and tools specifies generation); (2nd Fabric Switch Channel Fibre The primitive signal used by L_Ports to be transmitted between frames. between transmitted be to L_Ports by used signal primitive The The partial use of a link to send data back and forth, with a with forth, and back data send to link a of use partial The Storage AreaNetworking GLOSSARY Intermix Intercabinet Initiator In-band IPI IP Intracabinet IOD Interswitch link Hub Hot swappable Hunt Group Idle HTTP Gateway G_Port Full fabriccitizenship Full duplex FSPF Gigabit GBps Gbps GBIC GLM HSSDC HiPPI HBA between cabinets. between disks. or tapes synchronization. word and byte bit, maintain helps also It fibre. over link active an maintain connection to be used by Class 2 or Class 3. Class or 2 Class by used be to connection frames get delivered in order, or they are dropped. are order,they in or delivered get frames cabinet. single a within distance 13-meter a to up WorldWideWeb. node that is not functioning is automatically removed from the loop. the from removed automatically is functioning not is that node A loop. the into it insert and node active an recognize topology.automatically will Hubs to whichever port is free at the time. the at free is port whichever to copper interfaces. copper and Gigabit Ethernet physical-layer transport. physical-layer Ethernet Gigabit and software. and hardware for both lation, supercomputer environments. supercomputer network. channel functions. serializing/deserializing Internet Protocol; the addressing part of TCP/IP.of part addressing the Protocol; Internet Intelligent Peripheral Interface. Peripheral Intelligent An ordered set transmitted continuously over a link when no data is being transmitted, to transmitted, being is data no when link a over continuously transmitted set ordered An In Order Delivery; a parameter than when set, guarantees set, when than parameter a Delivery; Order In A fibre channel wiring concentrator that collapses a loop topology into a physical star physical a into topology loop a collapses that concentrator wiring channel fibre A Host Bus Adapter; an interface between a server or workstation bus and the fibre the and bus workstation or server a between interface an Adapter; Bus Host Fibre Channel Shortest Path First; a routing protocol used by fibre channel switches. channel fibre by used protocol routing a First; Path Shortest Channel Fibre Gigabit Interface Controller; a removable transceiver module permitting fibre channel fibre permitting module transceiver removable a Controller; Interface Gigabit HyperTextthe on used protocol Transfertransfer TCP/IP standard the Protocol; Gigabit Link Module; a semi-transparent transceiver that incorporates that transceiver semi-transparent a Module; Link Gigabit Gigabytes per second. per Gigabytes Gigabits per second. per Gigabits High-performance Parallel Interface; an 800Mbit/sec interface normally used in used normally interface 800Mbit/sec an Interface; Parallel High-performance High Speed Serial Data Connection; a form factor that allows quick connections for connections quick allows that factor form a Connection; Data Serial Speed High A generic port that supports either E_Port or F_Port functionality.F_Port or E_Port either supports that port generic A 1,062,500,000 bits per second in fibre channel. fibre in second per bits 1,062,500,000 Transmission of management protocol over the fibre channel transport. channel fibre Transmissionthe over protocol management of A server or workstation on a fibre channel network that initiates transactions to transactions initiates that network channel fibre a on workstation or server A Allows any unused bandwidth in a Class 1 Class a in bandwidth unused any Allows Hardware that connects incompatible networks by providing the necessary trans- necessary the providing by networks incompatible connects that Hardware Concurrent transmission and reception of data on a link. a on data of reception and transmission Concurrent A number of N_Ports register as a single Alias_ID, so the fabric can route it route can fabric the so Alias_ID, single a as register N_Ports of number A A specification for copper cabling that allows up to 33-meter distances 33-meter to up allows that cabling copper for specification A A specification for copper cabling that allows that cabling copper for specification A A component that can be replaced while under power.under while replaced be can that component A See ISL. See A loop device that has an entry in name server.name in entry an has that device loop A Storage AreaNetworking GLOSSARY LPB Login server Link control facility LED Latency LAN LIFA LPE LILP LIHA LIPA LIP Link service Link Isolated E_Port ISL IPI JBOD Jaycor ISP L_Port L_Port K28.5 Jitter channel link for each mode. each for link channel TelnetswitchShow a of output the command. of part which has been bypassed with the LPB. It is used only in Arbitrated Loops. Arbitrated in only used is It LPB. the with bypassed been has which Loops. Arbitrated in only used is It directed. is it which to temporary loop master has been selected. been has master loop temporary a after process initialization loop the in transmitted frame 3rd the is and set bit a by selected. been has master loop temporary a after process initialization loop the in transmitted frame 1st the AL_PAsis and fabric in a previous loop initialization. loop previous a in fabric the with in logged not had it if bitmap the in bit a marks node. a reset to or connections. maintaining and management sequence/exchange login, transmitted. also is LIRP the unless transmitted be not will and frame optional an is This position. loop relative their determine to members loop all allows This maps. AL_PA the position of all of accumulation an contains LIRP returned A process. tion because of overlapping domain IDs or no identical parameters such as E_D_TOVs. as such parameters identical no or IDs domain overlapping of because segment in a single chassis. single a in segment Intelligent Peripheral Interface. Peripheral Intelligent Interswitch Link; a connection between two switches using the E_Port. the using switches two between connection a Link; Interswitch Loop Initialization Process; a means to get an AL_PA address, to indicate a loop failure loop a indicate AL_PAto an address, get to means a Process; Initialization Loop Internet Service Provider.Service Internet Loop Port Enable; a primitive sequence transmitted by an L_Port to enable L_Port enable to L_Port an by transmitted sequence primitive a Enable; Port Loop Light Emitting Diode; a status indicator on a switch, typically yellow or green. or yellow typically switch, a on indicator status a Diode; Emitting Light Loop Port Bypass; a primitive sequence transmitted by an L_Port to bypass the L_Port the bypass to L_Port an by transmitted sequence primitive a Bypass; Port Loop Loop Initialization Loop Position frame; the final frame transmitted in a loop initializa- loop a in transmitted frame final the frame; Position Loop Initialization Loop Loop Initialization Fabric Assigned frame; contains bitmap of all fabric assigned fabric all of bitmap contains frame; Assigned Fabric Initialization Loop A bi-directional point-to-point serial data channel. data serial point-to-point bi-directional A Local Area Network; a network where transmissions are typically under 5km. under typically are transmissions where network a Network; Area Local Loop Initialization Previously Assigned; where the device the where Assigned; Previously Initialization Loop Loop Initialization Hard Assigned frame; a hard assigned AL_PA which is indicated indicated AL_PAis assigned which hard a frame; Assigned Hard Initialization Loop A deviation in timing for a bit stream as is flows through a physical medium. physical a through flows is as stream bit a for timing in deviation A Just a Bunch Of Disks; a term for disks typically configured as an Arbitrated Loop Arbitrated an as configured typically disks for term a Disks; Of Bunch a Just A special 10-bit character used to indicate the beginning of a fibre channel command. channel fibre a of beginning the indicate to used character 10-bit special A Node Loop port; a port supporting the Arbitrated Loop protocol. It appears as the as appears It protocol. Loop Arbitrated the supporting port a port; Loop Node A brand of host bus adapter.bus host of brand A The period of time that a frame is held by a network device before it is forwarded. is it before device network a by held is frame a that time of period The Facilities used between an N_Port and the fabric, or between two N_Ports for N_Ports two between or fabric, the and N_Port an between used Facilities The unit that responds to login requests. login to responds that unit The This occurs when an ISL is online but not operational between switches between operational not but online is ISL an when occurs This A termination card handling physical and logical control of the fibre the of control logical and physical handling card termination A Storage AreaNetworking GLOSSARY LPSM Loom LISM LR Looplet N_Port Multimode Multicast MTBF MIB MIA Metric MBps Mbps MRK MAN LWL LRR NAS Name Server/Service LISA LIRP LIRP or LILP frames. LILP or LIRP LIFA,the LIPA,of LISA, transmission LIHA, start subsequently will that L_Port the or master loop temporary a select to used AL_PA.is an It select L_Ports when process tion AL_PAtheir here. select LIFA,AL_PA will a an frame LIPAin selected LIHA or not have which L_Ports selected. been has master loop temporary a after process ization through different phases of loop operations. loop of phases different through behavior track to L_Port an by maintained is It loop. the to access and initialization switches. of series 2xxx Silkworm the in used is that ASIC between devices. between device. a of information. device and configuration of abstraction an contains specific. vendor is and synchronization for speeds. link Gbps 1.0625 supporting lasers Idle. of response a expects and LR, an to response in topology.sent fabric is in It F_Port an and topology,N_Port point-to-point an in or LRR. an is response topology.fabric expected in The F_Port an and topology,N_Port point-to-point an or to a controller that gives access to a LAN Transport.LAN a to access gives that controller a to connection. point-to-point loop so all L_Ports can report their relative physical position. This is an optional frame. optional an is This position. physical relative their report can L_Ports all so loop the around transmitted AL_PA.gets an It selected have L_Ports all after process ization Link Reset; a primitive sequence used during link initialization between 2 N_Ports in N_Ports 2 between initialization link during used sequence primitive a Reset; Link Link Reset Response; a primitive sequence during link initialization between 2 N_Ports 2 between initialization link during sequence primitive a Response; Reset Link Management Information Base; an SNMP structure for device management that management device for structure SNMP an Base; Information Management Long wavelength fiber-optic; connector is color-coded blue, and is based on 1300mm on based is and color-codedblue, is fiber-optic;connector wavelength Long Media Interface Adapter; a device that converts optical connections to copper ones. copper to connections optical converts that device a Adapter; Interface Media Loop Initialization Report Position frame; the 1st frame transmitted in the loop initial- loop the in transmitted frame 1st the frame; Position Report Initialization Loop Loop Initialization Soft Assigned frame; the 4th frame transmitted in the loop initial- loop the in transmitted frame 4th the frame; Assigned Soft Initialization Loop Network Attached Storage; a disk array connected array disk a Storage; Attached Network Loop Initialization Select Master frame; it is the 1st frame transmitted in the initializa- the in transmitted frame 1st the is it frame; Master Select Initialization Loop Mark Primitive Signal; used only in Arbitrated Loop, it is transmitted by an L_Port an by transmitted is it Loop, Arbitrated in only used Signal; Primitive Mark Metropolitan Area Network. Area Metropolitan Mean Time Between Failures; an expression of a unit of time indicating the longevity the indicating time of unit a of expression an Failures; TimeBetween Mean Loop Port State Machine; logic that monitors and performs the tasks required for required tasks the performs and monitors that logic Machine; State Port Loop The code name given to the second generation BROCADE fabric ASIC. This is the is This ASIC. fabric BROCADE generation second the to given name code The Megabytes per second. per Megabytes Megabits per second. per Megabits A relative value assigned to a route to aide in calculating the shortest path. shortest the calculating in aide to route a to assigned value relative A A fibre channel port in a fabric or fabric a in port channel fibre A Private Arbitrated Loops connects by a fabric. a by connects Loops Arbitrated Private A restricted broadcast to a subset of the N_Ports on the network. the on N_Ports the of subset a to broadcast restricted A A fiber-optic cabling specification that allows up to 500-meter distances 500-meter to up allows that specification fiber-opticcabling A See SNS. See Storage AreaNetworking GLOSSARY OFC NOS Mode Nonparticipating Non-OFC Node name Node NL_Port NDMP OLTP OLS OPN Operation Ordered set Participating Mode Participating Parallel Out-of-band OX_ID Originator otLog Port Port Point to PLOGI PBC Passive copper volatile memory.volatile OLS is the expected response. expected the is OLS An offline. is or failure link a detected has port transmitting the that indicate to sent is It topology.fabric the in F_Port and topology,N_Port point-to-point an the or in N_Ports acquired. AL_PAbe an cannot and loop, intensity.low resources. server using sequence, or is going offline. The expected response to an OLS is an LR. an is OLS an to response expected The offline. going is or sequence, primitive NOS the recognized has link, a initialize to attempting is port transmitting the indicate to sent is It fabric. a in N_Port an and F_Port an or topology point-to-point a transceivers. laser intensity that has won the arbitration process to open communication with 1+ ports on the loop. the on ports 1+ with communication open to process arbitration the won has that usually over Ethernet. over usually exchange. an of part being as frames identify to exchange an of nator data. from information control channel fibre distinguish to used are and access, media and network. devices. two between nodes. add/remove devices. between 13-meters loop. AL_PAa on Port Bypass Circuit; a circuit in hubs or a disk enclosure to open/close a loop to loop a open/close to enclosure disk a or hubs in circuit a Circuit; Bypass Port Offline Primitive Sequence; this is used during link initialization between 2 N_Ports in N_Ports 2 between initialization link during used is this Sequence; Primitive Offline Open Fiber Control; a method used to enable and disable laser signaling for higher-for signaling laser disable and enable to used method a Control; Fiber Open A fibre channel entity that connects a node to the to node a connects that entity channel fibre A Non Operational Primitive Sequence; used during link initialization between 2 between initialization link during used Sequence; Primitive Operational Non Open Primitive Signal; this applies only to arbitrated loop, and is sent by an L_Port an by sent is and loop, arbitrated to only applies this Signal; Primitive Open OnLine TransactionOnLine Processing. A fibre channel device that supports 1+ ports. 1+ supports that device channel fibre A A port-to-port login process where initiators establish sessions with targets. with sessions establish initiators where process login port-to-port A Originator Exchange Identifier; a 2-byte field in the frame header used by the origi- the by used header frame the in field 2-byte a Identifier; Exchange Originator Network Data Management Protocol; a protocol used for tape backups without backups tape for used protocol a Protocol; Management Data Network The simultaneous transmission of data bits over multiple lines. multiple over bits data of transmission simultaneous The Node Loop port; a port supporting the Arbitrated Loop protocol. Loop Arbitrated the supporting port a port; Loop Node A record of all activity on a switch, kept in kept switch, a on activity all of record A A category of laser transceiver that does not require open fibre control due to its to due control fibre open require not does that transceiver laser of category A An FC-2 term that refers to building blocks building to refers that term FC-2 An The N_Port that originated an exchange. an originated that N_Port The A 64-bit unique identifier assigned to a fibre channel node. channel fibre a to assigned identifier unique 64-bit A A group of low-level protocols used to manage frame transport, initialization transport, frame manage to used protocols low-level of group A Transmission of management protocol outside of the fibre channel network, channel fibre the Transmissionof outside protocol management of A dedicated fibre channel connection channel fibre dedicated A A low-cost copper fibre channel connection allowing distances up to up distances allowing connection channel fibre copper low-cost A The normal operating mode for an L_Port, which has acquired an acquired has which L_Port, an for mode operating normal The This mode is entered if there are greater than 127 devices on a on devices 127 than greater are there if entered is mode This Storage AreaNetworking GLOSSARY Repeater Remote switch Port LogDump Port Private device Primitive signals Primitive sequence POST name Port Private NL_Port Private loopdevice Private loop Public loopdevice Public loop Public device PSU PLDA R_A_TOV QuickLoop Queue QoS Qlogic Public NL_Port R_T_TOV R_RDY RAID Redundancy Receiver and transmit an outbound signal. outbound an transmit and TechnologyNetwork ATM.over gateway availability.high maintain to and MRK are in Arbitrated Loop. Arbitrated in are MRK and CLS OPN ARB, topologies, 3 all in used are R_RDY and Idle response. a trigger to rence response. a trigger to occurrences consecutive three least at require and medium Log. Port the read to used command the is cannot log into the fabric. the into log cannot other ports on the loop, not with the fabric. the with not loop, the on ports other were on the same arbitrated loop. arbitrated same the on were they if as other each to appear will QuickLoop via connected Devices PLDA. logical a loop. the to them sending fabric. the on N_Ports other to FL_Port an through as a maximum allowable time a frame could be delayed in the fabric and still be delivered. be still and fabric the in delayed be could frame a time allowable maximum a synchronization between transmitters and receivers. and transmitters between synchronization and are fault-tolerant either through mirroring or parity checking. parity or mirroring through either fault-tolerant are and Power Supply Unit. Supply Power Quality of Service. of Quality Redundant Array of Independent Disks; disks look like a single volume to the server,the to volume single a like look disks Disks; Independent of Array Redundant Private Loop Direct Attached; a logical loop. logical a Attached; Direct Loop Private Power On Self Test; a routine the switch performs to test its components. its test Test;to Self performs On switch Power the routine a A brand of host bus adapter.bus host of brand A Receiver Ready; a primitive signal that indicates the port is ready to receive a frame. a receive to ready is port the indicates that signal primitive a Ready; Receiver A mechanism for each AL_PA address that allows for collecting frames prior to prior frames collecting for allows AL_PAthat each address for mechanism A A device that does detection and signal processing. signal and detection does that device A Receiver Transmitter Timeout Value; used by the receiver logic to detect loss of Transmitterloss Receiver detect to logic Timeoutreceiver Value; the by used Resource Allocation Time Out Value; used to timeout operations that depend on depend that operations Value;Timetimeout Out Allocation to Resource used A circuit that uses recovered clock to regenerate to clock recovered uses that circuit A A unique 64-bit character identifier assigned to a fibre channel port. channel fibre a to assigned identifier character 64-bit unique A A BROCADE software product that allows multiple ports on a switch to create to switch a on ports multiple allows that product software BROCADE A An Arbitrated Loop attached to a fabric switch. fabric a to attached Loop Arbitrated An Having multiple occurrences of a component a of occurrences multiple Having An Arbitrated Loop with no fabric attachment. fabric no with Loop Arbitrated An A device that supports loop and can also log into the fabric. the into log also can and loop supports that device A A device that supports loop and can understand addresses of 8-bits but 8-bits of addresses understand can and loop supports that device A An NL_Port which may communicate with other ports on the loop as well as loop the on ports other with communicate may which NL_Port An an optional product using a Computer a using product optional an A view of what happens on a switch from the switch’sthe view. from of switch point This a on happens what of view A An NL_Port on a public or private loop, which only communicates with communicates only which loop, private or public a on NL_Port An Ordered sets that indicate actions or events and require just one occur- one just require and events or actions indicate that sets Ordered An Arbitrated Loop device that supports fabric login and services. and login fabric supports that device Loop Arbitrated An Ordered sets that indicate or start state changes on the transport the on changes state start or indicate that sets Ordered An Arbitrated Loop device with no fabric attachment. fabric no with device Loop Arbitrated An Storage AreaNetworking GLOSSARY RSCN S_ID Single mode SilkWorm SES Sequence initiator Sequence SEQ_ID SCSI-3 SCSI-2 SCSI SCR SAN island SAN SNS SNMP SMI Server Serial SERDES Sequence recipient SOF RX_ID Route Retimer Responder responder of the Exchange to identify frames as being part of a particular exchange. particular a of part being as frames identify to Exchange the of responder registered nodes if a change occurs either with or within the fabric. the within or with either occurs change a if nodes registered power and fan status for enclosed devices. enclosed for status fan and power Exchange. particular a of part being as frames identify to Exchange meters. 15-25 of distance a to up blocks data large transmitting channel. fibre over devices other and sent. was frame the which from N_Port the of identifier management of networks over TCP/IP,over stations. networks and of agents management using variables. management devices. between vice-versa. and characters, parallel N_Port. another frame will use. will frame the service of class the indicates and frame, a of beginning service. directory a as known also is This minutes. 15 to up for information the cache can and objects, channel fibre to related attributes and addresses names, stores that switch fabric SCSI Enclosure Services; a subset of the SCSI protocol used to monitor temperature, monitor to used protocol SCSI the of subset a Services; Enclosure SCSI Structure of Management Information; a notation for setting or retrieving SNMP retrieving or setting for notation a Information; Management of Structure State Change Registration. The command used by devices to register to receive RSCNs. receive to register to devices by used command The Registration. Change State Start Of Frame; a group of ordered sets that mark the mark that sets ordered of group a Frame; Of Start Simple Name Server (or Service); the service provided by a by provided service the Service); (or Server Name Simple Source Identifier; A 3-byte field in the frame header used to indicate the address the indicate to used header frame the in field 3-byte A Identifier; Source Small Computer Systems Interface; A parallel bus architecture and a protocol for protocol a and architecture bus parallel A Interface; Systems Computer Small Storage Area Network; a network linking computing devices to disk or tape arrays, tape or disk to devices computing linking network a Network; Area Storage Registered State Change Notification; a switch function that allows notification to notification allows that function switch a Notification; Change State Registered The transmission of data bits in sequential order over a single line. single a over order sequential in bits data of transmission The A path between two switches. two between path A Responder Exchange Identifier; A 2-byte field in the frame header used by the by used header frame the in field 2-byte A Identifier; Exchange Responder Simple Network Management Protocol; A TCP/IP protocol that was designed for designed was that protocol TCP/IP A Protocol; Management Network Simple A SCSI standard that defines transmission of SCSI protocol data over serial links. serial over data protocol SCSI of transmission defines that standard SCSI A architecture. bus SCSI the of version updated An A central computer that processes end-user applications or requests. or applications end-user processes that computer central A Sequence Identifier; a 1-byte field in the frame header used by the responder of the of responder the by used header frame the in field 1-byte a Identifier; Sequence SERializing/DESerializing circuitry; a circuit that converts a serial bit stream into stream bit serial a converts that circuit a circuitry; SERializing/DESerializing A circuit that uses an independent clock to generate outbound signals. outbound generate to clock independent an uses that circuit A A group of related frames transmitted unidirectionally from one N_Port to another.to N_Port one from unidirectionally transmitted frames related of group A A brand name for BROCADE’sfor switches. name of brand family A The N_Port with which an Exchange originator wishes to communicate. to wishes originator Exchange an which with N_Port The A group of JBODs and server(s) connected to a switch in a fabric. a in switch a to connected server(s) and JBODs of group A A fiber-optic cabling specification that provides up to 10km distances 10km to up provides that specification fiber-opticcabling A The N_Port which began a new Sequence and transmits frames to frames transmits and Sequence new a began which N_Port The The N_Port to which a particular Sequence of data frames is directed. is frames data of Sequence particular a which to N_Port The Storage AreaNetworking GLOSSARY Tunneling TTL Time server Time server Tenancy Telnet TCP/IP Target Tachyon T11 Transceiver TPC Topology Transmission word Transmission character Translative mode Trap Special character SONET Stealth Mode SRM Striping Store-and-forward Storage SWL Switch in between. in network different a is there but network, of type same the on are hosts destination and source the where interact expires. it before cache in events. cant FC-2 on one chip. one on FC-2 computers. central speeds. link Gbps 1.0625 supporting lasers reception; in fiber optics it means optical to electrical. to optical means it optics fiber in reception; transmission characters. transmission blocks and flexible payload mappings. payload flexible and blocks transmission word is an Ordered Set. This is the only character to have 5 1s or 0s in a row.a in 0s or 1s 5 have to character only the is This Set. Ordered an is word transmission particular a that indicate to used is character special The valid. considered still is but value, a routing decision is made. is decision routing a Loop. Quick using switches link-level addressing. link-level parity.without or with Time To Live; the number of seconds an entry will exist will Timeentry Toan seconds of number the Live; Third Party Copy; a protocol for performing tape backups without using server resources. server using without backups tape performing for protocol a Copy; Party Third A standards committee chartered with creating standards for data movement to/from movement data for standards creating with chartered committee standards A Short wavelength fiber-optic; connector is color-coded black, and is based on 850mm on based is and color-codedblack, is fiber-optic;connector wavelength Short Storage Resource Management; the management of disk volumes and any file resources. file any and volumes disk of management the Management; Resource Storage An SNMP mechanism for agents to notify the SNMP management station of signifi- of station management SNMP the notify to agents for mechanism SNMP An A virtual terminal emulation used with TCP/IP.with used emulation terminal virtual A A disk array or a tape on a fibre channel network. channel fibre a on tape a or array disk A A fabric device providing full bandwidth per port and high-speed routing of data via data of routing high-speed and port per bandwidth full providing device fabric A TransmissionProtocol. Internet over Protocol Control Synchronous Optical Network; a standard for optical networks providing building providing networks optical for standard a Network; Optical Synchronous A RAID technique for writing a file to multiple disks on a block-by-block basis, block-by-block a on disks multiple to file a writing for technique RAID A A device used to store data; such as a disk or tape. or disk a as such data; store to used device A Possession of an Arbitrated Loop by a device to conduct a transaction. a conduct to device a by Loop Arbitrated an of Possession A chip developed by HP, and used in various devices. This chip has FC-0 through FC-0 has chip This HP,devices. by various developed in chip used A and The physical or logical arrangement of devices in a networked configuration. networked a in devices of arrangement logical or physical The A technique for making two different networks different two making for technique A A device that converts one form of signaling to another for transmission and transmission for another to signaling of form one converts that device A A fibre channel service that allows for the management of all timers. all of management the for allows that service channel fibre A A method used in some switches to have them work similar to BROCADE to similar work them have to switches some in used method A A special 10-bit character, which does not have a corresponding 8-bit corresponding a have not character,does 10-bit which special A Allows public devices to communicate with private devices across a fabric. a across devices private with communicate to devices public Allows A switching technique that requires buffering an entire frame before frame entire an buffering requires that technique switching A A string of 4 consecutive 4 of string A A valid or invalid character transmitted serially over fibre. over serially transmitted character invalid or valid A Storage AreaNetworking GLOSSARY Zoning World-Wide Name VCSEL WDM WAN circuit Virtual VAR U_Port Unicast ULP port, name or address. or name port, cable. single a on filtered fabric. the in switches FC-4 layer.FC-4 Typical IP,SCSI, are IPI. protocols and HiPPI automatic. is type port actual of Selection port. any to connect to device any allow to Ports Universal contain switches of series Upper Level Protocol; The protocol which runs on top of fibre channel through the through channel fibre of top on runs which protocol The Protocol; Level Upper ValueReseller.Added Wide Area Network. WideArea Wavelength Division Multiplexer; allows multiple wavelengths to be combined or combined be to wavelengths multiple Wavelengthallows Multiplexer; Division Vertical Cavity Surface Emitting Laser; an improved and more reliable type of laser.of type reliable more and improved an Laser; VerticalEmitting Surface Cavity Universal Port; a port that can operate as a G/E/F/FL_Port. All Silkworm 2xxx Silkworm All G/E/F/FL_Port. a as operate can that port a Port; Universal A feature in fabric switches or hubs that allows segmentation of a node by physical by node a of segmentation allows that hubs or switches fabric in feature A A routing method that provides one or more optimal path(s) between any 2 any between path(s) optimal more or one provides that method routing A A one-way path between N_Ports that allows fractional bandwidth. fractional allows that N_Ports between path one-way A A registered 64-bit unique identifier for nodes and ports in a fabric. a in ports and nodes for identifier unique 64-bit registered A