3Com 4007, Руководство по внедрению, Страница: 581 / 684

QoS Controls 581
QoS Controls
After you define a classifier, you assign it a control to apply any of the
following values:
■
Rate limit (to limit the amount of input bandwidth the classifier uses)
■
Service level for conforming packets (a transmit priority that maps to a
particular transmit queue)
■
Whether packets conforming to the rate limit are loss eligible (that is,
whether they are discarded instead of queued when transmit queues
back up beyond a threshold)
■
IEEE 802.1p priority tag value to apply to forwarded frames
■
A one-way filter to drop packets used to establish TCP connections
■
Whether to drop packets used to establish TCP connections. This is a
form of one-way filtering for flow classifiers only. The default is no.
■
Enable control start and stop times. Similar to how a VCR operates,
this timer allows you to set the desired beginning and ending period
for a control. The default is no.
If you select yes, you set the following:
■
Input time type such as daily, weekdays, or weekends. You can also
choose a specific type that lets you choose an exact day.
■
The starting and ending time expressed in hour, minute, and am or
pm (hh:mm), as applicable.
■
The starting and ending date expressed in month and day
(MM-DD), as applicable.
■
One or more classifiers (classifier numbers) that are subject to this
control