HST-3000 Ethernet Testing User’s Guide
317
Glossary
Numerics
100M — Used on HST user
interface to represent 100 Mbps
Ethernet.
1G — Used on HST user inter-
face to represent both electrical
and optical 1 Gigabit Ethernet
rate.
802.3 — The IEEE specification
for Ethernet. 802.3 also speci-
fies a frame type that places the
frame length in the Length/Type
field of the Ethernet header, as
opposed to the DIX Type II
frame type which utilizes the
Length/Type field to identify the
payload Ethertype.
A
Acterna test packet — A test
packet that contains a time
stamp and sequence number for
measuring round trip delay and
counting out-of-sequence
frames. To transmit Acterna test
packets from an HST, you select
an Acterna payload when you
configure a test.
ARP — Address Resolution
Protocol. Method for deter-
mining a host’s hardware
address if only the IP address is
known. You can configure the
HST to automatically send ARP
requests during layer 3 IP
testing.
ATP — Acterna Test Packet.A
test packet that contains a time
stamp and sequence number for
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