Configuring Qos Basic Mode - Cisco 220 Series Smart Plus Administration Manual

Quality of Service

Configuring QoS Basic Mode

Configuring QoS Basic Mode
STEP 1
STEP 2
STEP 3
Cisco 220 Series Smart Plus Switches Administration Guide Release 1.0.0.x
In QoS basic mode, a specific domain in the network can be defined as trusted.
Within that domain, packets are marked with 802. 1 p priority and/or DSCP to signal
the type of service they require. Nodes within the domain use these fields to
assign the packet to a specific output queue. The initial packet classification and
marking of these fields is done in the ingress of the trusted domain.
To configure QoS basic mode, perform the following:
Select the QoS basic mode for the switch as described in the
Properties section.
Select the trust behavior as described in the
Settings section. The switch supports four trusted modes: CoS/802. 1 p, DSCP, IP
precedence, and CoS/802. 1 p-DSCP. CoS/802. 1 p trusted mode uses the 802. 1 p
priority in the VLAN tag. DSCP trusted mode use the DSCP value in the IP header.
If there is any port that, as an exception, should not trust the incoming CoS mark,
disable the QoS state on that port on the Interface Settings page, as described in
the Configuring Interface QoS Settings
Enable or disable the global selected trusted mode at the ports on the Interface
Settings page. If a port is disabled without trusted mode, all its ingress packets are
forward in best effort. We recommend that you disable the trusted mode at the
ports where the CoS/802. 1 p and/or DSCP values in the incoming packets are not
trustworthy. Otherwise, it might negatively affect the performance of your
network.
Configuring Basic QoS Global
section.
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Configuring QoS
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