EXFO ETS-1000G - Manual (Page 153)

10 Gigabit Ethernet Analyzer 143
B Reference Tables
Traffic Types and Priorities
The Network Control and Internetwork Control traffic types are reserved
for network control messages. Priorities 4 and 5 can be used for
deference-sensitive traffic, such as video or voice. Traffic priorities from 3
to 1 are used for different tasks: from streaming applications to FTP traffic
that is able to handle possible losses. Class 0 is reserved for the
<> delivery and it is assigned when no other class is
specified.
Value Description
1 Background
0 (Default) Best Effort
2 Excellent Effort
3 Critical Application
4 Video
5 Voice
6 Internetwork Control
7 Network Control