Saturday, January 8, 2011
Weak current College】 【SAN special terminology details (4)】.
IPI intelligent peripheral interface
ISL (inter-switch connections): two switch port connections through E_Port.
IsolatedE_Port (quarantine E_Port port): ISL connection exists, but because of the overlapping domain ID or does not have an identity parameter, such as E_D_TOV, which causes the switch without a data transfer, this time it is in isolation E_Port port.
ISP (Internet service provider)
Jaycor a host bus adapter brand
JBOD (disk beam): more than one disk is configured as a unit of arbitrated loop.
Jitter (jitter): when the byte stream through physical media, time synchronization offset.
K28.5 a special 10-bit characters, are used to indicate the fibre channel command to the start of the frame.
LAN (local area network): transmission distance is less than 5 km of network.
Latency (store and forward time): data frames in a network device stays in, that is, from the frame to the device to be forwarded between time consuming.
LED (light emitting diode): one in the status indicator on the switch, there are generally two kinds of yellow, green.
Link (link control equipment): a terminal card, on a different mode of fibre channel physical and logical link control.
LIFA (initial schema distribution frame loop): includes all the assigned by schema arbitrated loop physical address (AL_PA) bitmap,
Is the loop initialization process selected temporary loop master controller sent the first frame.
LIHA (loop initialization hard distribution frame): consists of a sequence of bits of hard physical address assigned arbitrated loop (AL_PA), is the loop initialization process selected temporary loop master controller sent the third frame.
LILP (loop initialization hard distribution frame): consists of a sequence of bits of hard physical address assigned arbitrated loop (AL_PA), is the loop initialization process selected temporary loop master controller sent the third frame.
Link (link): a two-way, point-to-point serial data channel.
LIP (loop initialization process): get the loop address that indicates that loop fault or restart the node.
LIPA (loop initialization pre-allocated): in the last loop initialization process is not logged on to the schema of the equipment in that frame tag a bit.
LIRP (loop initialization position report frame): in the loop initialization process, all the port selected its L_Port AL_PA address after sending the first frame. The frame is sent after the loop, in order to collect all the relative physical L_Port port location information. The frame is an optional frame.
LISA (loop initialization software distribution frame): in the loop during initialization the fourth frame sent. The frame with a temporary loop sent after the main controller.
LISM (loop initialization master controller selection frame): in the loop initialization process, when L_Port port selection arbitrated loop physical address (AL_PA) when sending the first frame.
Loginserver (logon server): the handling of logon requests.
LoomBrocade company second-generation framework-specific integrated circuit (ASIC) of the code. Second generation schema ASIC for SilkWorm2xxx series switch.
Looplet (small ring road): the schema attached private arbitrated loop.
LPB (loop port bypass): consists of one node loop port (L_Port) send a sequence of primitives to bypass another it points to a node loop port. Only arbitrated loop.
LPE (loop ports enabled): consists of one node loop port forwarding of primitive sequence, is used to activate the LPB primitives bypass of another node loop port, only for arbitrated loop.
L_Port (node loop port): supports arbitrated loop protocol port
LPSM (loop port state machine): monitor and perform initialization tasks and access to the schema of a set of logic. By node loop port management, to track loop operation in different stages of the State.
LR (link reset): a primitive sequence in two N_Port port (point-to-point topology) or a N_Port port and an F_Port port (schema topology) link initialization process. Expectations for a LRR primitive sequence (see below).
LRR (link to reboot the answer): a primitive sequence in two N_Port port (point-to-point topology) or a N_Port port and an F_Port port (schema topology) link initialization process used, as LR primitives sequence response, expect a free answer.
LWL (long-wavelength fiber): connector color code blue, 1300 mm laser-based, support 1.0625 Gigabit/sec link speed.
MAN (metropolitan area)
Metric (steps): a relative value assigned to the router that helps calculate the shortest path.
MIA (media interface adapter): fiber to the copper cable connection between conversion devices.
MIB (media interface adapter): fiber to the copper cable connection between conversion devices.
MRK(Tag primitive signal): only for arbitrated loop, sent by L_Port port, used for sending and receiving party synchronization. Different manufacturers on the signal has a different definition.