Cisco Small Business 200, Руководство администратора

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Quality of Service
Configuring QoS - General
Cisco Small Business 200 Series Smart Switch Administration Guide 308
20
Interface QoS Settings
The Interface Settings page enables configuring QoS on each port of the device,
as follows:
QoS State Disabled on an Interface —All inbound traffic on the port is
mapped to the best effort queue and no classification/prioritization takes
place.
QoS State of the Port is Enabled —Port prioritize traffic on ingress is
based on the system wide configured trusted mode, which is either CoS/
802.1p trusted mode or DSCP trusted mode.
To enter QoS settings per interface:
STEP 1
Click Quality of Service > General > Interface Settings .
STEP 2
Select Port or LAG to display the list of ports or LAGs.
The list of ports/LAGs is displayed. QoS State displays whether QoS is enabled
on the interface.
STEP 3
Select an interface, and click Edit .
STEP 4
Select the Port or LAG interface.
STEP 5
Click to enable or disable QoS State for this interface.
STEP 6
Click Apply . The Running Configuration file is updated.
Configuring QoS Queues
The device supports either 4 or 8 queues for each interface (selected in the
System Mode and Stack Management page). Queue number four or eight is the
highest priority queue. Queue number one is the lowest priority queue.
There are two ways of determining how traffic in queues is handled, Strict Priority
and Weighted Round Robin (WRR).
• Strict Priority —Egress traffic from the highest-priority queue is
transmitted first. Traffic from the lower queues is processed only after the
highest queue has been transmitted, thus providing the highest level of
priority of traffic to the highest numbered queue.