HP MPX200 Multifunction Router - Manual (Page 115)

iSCSI Internet small computer system interface. Transmits native SCSI over the TCP/IP stack. In a system
supporting iSCSI, a user or software application issues a command to store or retrieve data on
a SCSI storage device. The request is processed by the operating system and is converted to one
or more SCSI commands that are then passed to software or to a card. The command and data
are encapsulated by representing them as a serial string of bytes proceeded by iSCSI headers.
The encapsulated data is then passed to a TCP/IP layer that breaks it into packets suitable for
transfer over the network. If required, the encapsulated data can also be encrypted for transfer
over an insecure network.
iSNS Internet storage name service. Used for discovery and management of IP-based SANs.
J
jumbo frames Large IP frames used in high-performance networks to increase performance over long distances.
Jumbo frames are typically 9,000 bytes for GbE, but can refer to anything over the IP MTU (1,500
bytes on an Ethernet).
L
load balancing Adjusting components to spread demands evenly across a system’s physical resources to optimize
performance.
LUN Logical unit number. Representation of a logical address on a peripheral device or array of
devices.
M
MTU Maximum transmission unit. The size (in bytes) of the largest packet that a specified layer of a
communications protocol can transfer.
multipath routing The routing technique of leveraging multiple alternative paths through a network, which can yield
a variety of benefits such as fault tolerance, increased bandwidth, or improved security.
N
NAA Name address authority.
NTP Network time protocol. Used for distributing the Coordinated Universal Time by synchronizing
the clocks of computer systems over data networks.
P
path A path to a device is a combination of an adapter port instance and a target port as distinct from
internal paths in the fabric network. A fabric network appears to the operating system as an
opaque network between the initiator and the target.
ping A computer network administration utility used to test whether a specified host is reachable across
an IP network, and to measure the round-trip time for packets sent from the local host to a
destination computer.
port Access points in a device where links attach.
port instance The number of the port in the system.
R
RCLI Remote Command Line Interface. A utility that you can use to configure and manage the HP
MPX200 Multifunction Router.
router log A log that contains messages router events.
RPC Remote procedure call. A protocol used by a program to request a service from a program located
in another computer in a network.
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