Glossary
HST-3000 Ethernet Testing User’s Guide
319
an Ethernet frame. The
receiving device performs the
same calculation, and compares
its FCS value with the FCS
value in the frame. If the values
don’t match (suggesting the
frame is errored), an FCS error
is declared. Switching devices
will discard the frame.
FDX — Full duplex.
G
GigE — Used throughout this
manual to represent Gigabit
Ethernet.
Global Addresses — Second
IPv6 source address assigned
to an interface. The global
address is not used locally, and
is broader in scope, typically to
get past a router. If you use
auto-configuration to establish a
link, the global address is
provided automatically.
H
HDX — Half duplex.
I
Internet Protocol —
Commonly referred to as “IP”.
Protocol specifying the format
and address scheme of packets
transmitted over the Internet.
Typically used with TCP.
IP — See Internet Protocol.
IPoE — Internet Protocol over
Ethernet. Used on the HST GUI
and through this guide to see the
applications used to establish a
standard layer 3 (IP) connection.
IPv4 — Internet Protocol
Version 4.
IPv6 — Internet Protocol
Version 6.
ITU — International Telecom-
munications Union based in
Geneva, Switzerland.
J
Jabber — An Ethernet frame
that exceeds the IEEE 802.3
maximum length of 1518 bytes
(or 1522 bytes with a VLAN tag)
and contains an errored FCS, or
a Fibre Channel frame that
exceeds the maximum length of
2140 bytes with an errored
CRC.
J-Connect — Utility that allows
you to detect other JDSU test
instruments on a particular
subnet, and use a detected
instrument’s addresses to auto-
matically populate key traffic
settings. Also known as
JDSU Discovery.
JDSU Discovery — See
J-Connect.
To Next Page
Loading...
