Cisco Systems SLM2008RF Manual De Usuario
Advanced Configuration
QoS
Cisco SLM2008 8-Port Gigabit Smart Switch with PD and AC Power Administration Guide
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5
•
Multicast Rate—Select the storm control multicast rate threshold from the
list or select the default value, No Limit.
list or select the default value, No Limit.
STEP 3
Click Save.
QoS
Configuring QoS Settings
Network traffic is usually unpredictable and the only basic assurance that can be
offered is best effort traffic delivery. To overcome this challenge, QoS is applied
throughout the network. This ensures that network traffic is prioritized according
to specified criteria, and that specific traffic receives preferential treatment. QoS
in the network optimizes network performance and entails two basic facilities:
offered is best effort traffic delivery. To overcome this challenge, QoS is applied
throughout the network. This ensures that network traffic is prioritized according
to specified criteria, and that specific traffic receives preferential treatment. QoS
in the network optimizes network performance and entails two basic facilities:
Classifying incoming traffic into handling classes, based on an attribute, including:
•
The ingress interface
•
Packet content
•
A combination of these attributes
•
Providing various mechanisms for determining the allocation of network
resources to different handling classes, including:
resources to different handling classes, including:
•
The assignment of network traffic to a particular hardware queue
•
The assignment of internal resources
You can set the switch to service the queues based on a strict rule that requires all
traffic in a higher priority queue to be processed before lower priority queues are
serviced, or use Weighted Round-Robin (WRR) queuing that specifies a relative
weight of each queue. WRR uses a pre-defined relative weight for each queue that
determines the percentage of service time the switch services each queue before
moving on to the next queue. This prevents the head-of-line blocking that can
occur with strict priority queuing.
traffic in a higher priority queue to be processed before lower priority queues are
serviced, or use Weighted Round-Robin (WRR) queuing that specifies a relative
weight of each queue. WRR uses a pre-defined relative weight for each queue that
determines the percentage of service time the switch services each queue before
moving on to the next queue. This prevents the head-of-line blocking that can
occur with strict priority queuing.