3Com CoreBuilder 3500, Руководство по внедрению

Страница: 490 / 592

490 C
HAPTER
17: Q
O
S
AND
RSVP
Assigning Control
Numbers
Each control must have a unique control number. When you define a
control, the system provides the next-available control number, but you
can specify any unreserved control number.
The system supports control numbers in the range 1 to 50 and predefines
controls 1 through 4 for some of the predefined nonflow classifiers.
Control 1 is associated with the default classifier and can be modified but
not removed. You can modify the other predefined controls as well
(2 through 4). For example, may want to redefine the way Business
Critical traffic is handled by modifying predefined control 3.
Table 61 lists the predefined controls.
Use your configuration tool (such as the Administration Console) to
display summary and detail information for your controls.
When you define a control, you supply the following information:
■
A control number in the range 5 to 50 (unless you remove the
predefined controls from prefined classifiers)
■
A control name (a unique name of up to 32 characters long)
■
The rate-limit type for the control (none, receivePort, or aggregate)
■
A service level (transmit priority) for conforming packets.
■
Whether the conforming packets are loss eligible. The default is no.
Table 61
Predefined Controls
Control
Number/Name
Service Level
Classifiers
Controlled
Other Characteristics
1
Default/Best Effort
best 499 (default) No rate limit, not loss
eligible, no priority
2
Background
low 401, 402 No rate limit, not loss
eligible, no priority
3
Business Critical
best 403 No rate limit, not loss
eligible, no priority
4
Controlled Load
high 404, 405, 406,
407 No rate limit, not loss
eligible, no priority