ZyXEL Communications Prestige 652H series, Руководство пользователя

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Prestige 652H/HW Series User’s Guide
20-14 Bandwidth Management
The following table describes the labels in this screen.
Table 20-15 Bandwidth Manager: Class Configuration
LABEL DESCRIPTION
Class Name Use the auto-generated name or enter a descriptive name of up to 20 alphanumeric
characters, including spaces.
BW Budget (kbps) Specify the maximum bandwidth allowed for the class in kbps. The recommendation
is a setting between 20 kbps and 20000 kbps for an individual class.
Priority Enter a number between 0 and 7 to set the priority of this class. The higher the
number, the higher the priority. The default setting is 3.
Borrow bandwidth
from parent class Select this option to allow a child-class to borrow bandwidth from its parent class if
the parent class is not using up its bandwidth budget.
Bandwidth borrowing is governed by the priority of the child-classes. That is, a child-
class with the highest priority (7) is the first to borrow bandwidth from its parent
class.
Do not select this for the classes directly below the root class if you want to leave
bandwidth available for other traffic types (see
20.6.1 ) or you want to set the
interface’s speed to match what the next device in network can handle (see the
Speed field description in Table 20-9 ).
Enable DiffServ
Marking Select this option to enable DiffServ marking on the Prestige.
DiffServ mark Select the marking rule from the drop-down list. The first three digits is the DiffServ
code point. A packet with the lowest priority mark will be dropped when the line is
busy.
Bandwidth Filter
The Prestige uses a bandwidth filter to identify the traffic that belongs to a bandwidth class.
Active Select the check box to have the Prestige use this bandwidth filter when it performs
bandwidth management.