Exfo ETS-1000G Manual do Utilizador descarregar pdf (Página 184)

Glossary

174 ETS-1000G

DNS

Domain Name System. A distributed system (a database) that is used for

translating a network device name into an IP address. DNS operates in the

TCP/IP networks.

DSCP

Differentiated Services Code Point. A field in the IP packet header that

consists of 8 bits. It allows classifying more traffic types than the Precedence

and ToS fields.

DUT

Device Under Test. The device being tested.

ECN

Explicit Congestion Notification. Setting bits in this field allows routers to

detect the congestion on the data transmission path to the specified

network node without discarding a packet.

Expedited Forwarding. It is used for processing the deference-sensitive

traffic that requires the minimum jitter, such as video or voice (VoIP; Voice

over IP).

Ethernet

Local networking technology. It is defined in the IEEE standards, group

802.3.

Frame loss rate

A test that determines the percentage of frames that a network element

has failed to transmit in case of steady load due to the shortage of

hardware resources.

FTP

File Transfer Protocol. A protocol that supports le transmission in computer

networks.

1 2 ... 179 180 181 182 183 184 185 186 187 188 189 ... 194 195

Sem comentários

Exfo ETS-1000G Manual do Utilizador Página 184