CTC Union GSW-3420FM, Руководство пользователя

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7.13 QoS
QoS is an acronym for Quality of Service. It is a method to guarantee a
bandwidth relationship between individual applications or protocols. A
communications network transports a multitude of applications and data,
including high-quality video and delay-sensitive data such as real-time voice.
Networks must provide secure, predictable, measurable, and sometimes
guaranteed services. Achieving the required QoS becomes the secret to a
successful end-to-end business solution. Therefore, QoS is the set of techniques
to manage network resources.
Every incoming frame is classified to a QoS class, which is used throughout the
device for providing queuing, scheduling and congestion control guarantees to
the frame according to what was configured for that specific QoS class. There is
a mapping between QoS class, queue and priority. A QoS class of 0 (zero) has
the lowest priority.
7.13.1 Port Ingress Classification
This setting is used to configure the basic QoS Ingress Classification settings for
all switch ports. [DSCP Based] is used to enable/disable doing QoS by DSCP in
IP header. Check it, and it is enabled.
About DSCP classification ...
For ingress DSCP classification configuration, please refer to [DSCP-Based
QoS] page. Check [Trust] in that page, and the DSCP value will work.
For ingress DSCP classification translation configuration, please refer to [DSCP
Translation] and [Port DSCP] pages for further settings.
For egress DSCP remarking configuratiin, please refer to [Port DSCP], [DSCP
Classification], and [DSCP Translation] pages for further settings.
Configuration by Web :
[Configuration] -> [QoS] -> [Port Classification]
Click “
?
” at this web page to get details of the settings.
Configuration by Command :
Port Ingress QoS Class :
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