Users Guide

Table Of Contents
User’s Guide—QConvergeConsole Plug-ins for vSphere
Glossary
Doc. No. TD-000965 Rev. 1
January 21, 2021 Page 263 Copyright © 2021 Marvell
IPv4
Internet protocol version 4. A data-oriented
protocol used on a packet switched inter-
network (Ethernet, for example). It is a
best-effort delivery protocol: it does not
guarantee delivery, ensure proper
sequencing, or avoid duplicate delivery.
These aspects are addressed by an upper
layer protocol (TCP, and partly by UDP).
IPv4 does, however, provide data integrity
protection through the use of packet
checksums.
IPv6
Internet protocol version 6. Next-genera-
tion version of IP that, among other things,
lengthens the IP address from 32 bits to
128 bits.
iSCSI
Internet small computer system interface.
Protocol that encapsulates data into IP
packets to send over Ethernet connec-
tions.
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.
LED
Light-emitting diode. Status indicator on a
switch, router, adapter, or other device.
light-emitting diode
See LED.
LIP
Loop initialization process. The initializa-
tion process in an arbitrated loop that
occurs when the loop is powered up or a
new device is added. One function of a LIP
is to assign addresses. All data transmis-
sion on the loop is suspended during a LIP.
logical unit number
See LUN.
loop initialization process
See LIP.
loopback
A diagnostic tool that routes transmit data
through a loopback connector back to the
same adapter.
LUN
Logical unit number, a subdivision of a
SCSI target. It is the small integer handle
that differentiates an individual disk drive
or partition (volume) within a common
SCSI target device such as a disk array.
Technically, a LUN can be a single
physical disk drive, multiple physical disk
drives, or a portion (volume) of a single
physical disk drive. However, LUNs are
typically not entire disk drives but rather
virtual partitions (volumes) of a RAID set.
Using LUNs, the Fibre Channel host can
address multiple peripheral devices that
may share a common controller.
MAC address
Media access control address. A unique
hardware device identifier used in IP
address assignment.
maximum transmission unit
See MTU.
media access control address
See MAC address.