6-15
Quality of Service (QoS): Managing Bandwidth More Effectively
Using QoS Types To Configure QoS for Outbound Traffic
No Override
By default, the dscp-map output automatically list No-override for priority
options that have not been pre-configured. This means that if you do not
configure a priority for a specific option, QoS does not prioritize packets to
which that option applies, resulting in the No override state. In this case, IP
packets received through a VLAN-tagged port receive whatever 802.1p priority
they carry in the 802.1Q tag in the packet’s header. VLAN-Tagged packets
received through an untagged port are handled in the switch with “normal”
priority.
type-of-service
Displays the current type-of-service priority
configuration. The display output differs according to
the ToS option used:
■ IP Precedence: Refer to figure 6-3 on page 6-17.
■ Diffserve: Refer to figure 6-5 on page 6-21.
port-priority
Displays the current Interface (source-port) priority
configuration. Refer to figure 6-11 on page 6-30.
