Glossary of Terms#

Blocks Typology#: A topology where each port is associated with either the EAST or the WEST group. Each port in the EAST group will then communicate with all ports in the WEST group, and vice versa. There are thus no direct relation between ports like there are for the Pairs topology. The transmit and receive roles of the ports are determined by the Direction setting.
Direction#: Denotes the direction of the traffic flows in relation to the group definitions. The direction can be either unidirectional or bidirectional. Unidirectional flows can be either EAST-to-WEST or WEST-to-EAST.
DUT#: Device Under Test
FDV#: Frame Delay Variance
FTD#: Frame Transfer Delay
IGMP#: Internet Group Management Protocol
IGMPV2#: Internet Group Management Protocol v2
IGMPV3#: Internet Group Management Protocol v3
Iteration#: Each test-type can be configured to repeat the test runs associated with the test-type a number of times. Each of these additional runs is called an iteration.
Mesh Typology#: A topology where all ports communicate with each other. The direction will always be bidirectional and the EAST/WEST group attribute is not used.
MPLS#: Multiprotocol Label Switching (MPLS) is a routing technique in telecommunications networks that directs data from one node to the next based on labels rather than network addresses.
Pair Typology#: A topology where each port is associated with exactly one other peer port. The ports must be associated with opposing EAST/WEST groups. A test configuration can contain several port pairs. The transmit and receive roles of the two ports are determined by the Direction setting.
Run#: Run A “test run” (or simply “run”) denotes the part of the test configuration that is associated with a single test-type and a single packet size. This concept is used for the purpose of progress reporting. A test configuration that specifies the use of e.g. 5 packet sizes and has enabled 3 of the possible 4 test-types will thus consist of 5*3 = 15 runs.
Test Type#: Denotes one of the the four types of tests according to RFC 2544: Throughput, Latency (and Jitter), Loss, and Back-to-Back (a.k.a. Burst).
TG#: Traffic Generation
TID#: Test payload identifier
TPLD#: Test payload
Trial#: A “trial” denotes a single execution of an iteration.
VLAN#: Virtual local area network (VLAN) is any broadcast domain that is partitioned and isolated in a computer network at the data link layer (OSI layer 2).