Qlogic iSR6152, Руководство пользователя

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iSR6152 Router Manager
User’s Guide
Glossary-4 ISR645610-00 B
G_Port
Generic port. A port that can operate as
either an E_Port or an F_Port. A G_Port
can determine operating mode at switch
port initialization, F_Port when an N_Port
attachment is determined, E_Port when an
E_Port attachment is determined. See
E_Port , F_Port , FL_Port , L_Port , N_Port ,
NL_Port .
generic port
See G_Port .
heartbeat LED
A chassis LED that indicates the router
status.
hot replaceable
Also known as hot swappable , this means
you can add new devices or remove
existing ones when the system is running.
IANA
Internet Assigned Numbers Authority
(IANA) is responsible for the global coordi-
nation of the DNS root, IP addressing, and
other Internet protocol resources.
initiator
System component, such as a network
interface card, that originates an I/O
operation.
Internet Assigned Numbers Authority
See IANA .
Internet Protocol
See IP .
Internet small computer system interface
See iSCSI .
IOCB
Input/output control block. A command
structure in QLogic intelligent storage
peripheral (ISP) architecture.
IOCTL
Input/output control. A system call in Unix
and Linux systems that allows an applica-
tion to control or communicate with a
device driver outside usual read/write
operations.
IP
Internet Protocol. A method by which data
are sent from one computer to another
over the Internet. IP specifies the format of
packets, also called
datagrams , and the
addressing scheme.
iSCSI
Internet small computer system interface.
Protocol that encapsulates data into IP
packets to send over Ethernet connec-
tions.
iSNS
Internet simple name service is used for
discovery and management of IP-based
SANs.
jumbo frames
Large IP frames used in high-performance
networks to increase performance over
long distances. Jumbo frames generally
means 9,000 bytes for Gigabit
Ethernet ,
but can refer to anything over the IP MTU ,
which is 1,500 bytes on an Ethernet.
L_Port
Loop port. Does arbitrated loop functions
and protocols. NL_Ports and FL_Ports are
examples of loop-capable ports. See
E_Port , F_Port , FL_Port , G_Port , N_Port ,
NL_Port .