Reference Guide

trust dot1p
exit
2 Apply the qos trust policy to ingress trac in SYSTEM-QOS or INTERFACE mode.
service-policy input type qos trust-policy—map-name
Congure a non-default dot1p-priority-to-trac class mapping
1 Congure a trust map of dot1p trac classes in CONFIGURATION mode. A trust map does not modify ingress dot1p values in output
ows.
Assign a qos-group to trusted dot1p values in TRUST mode using 1-to-1 mappings. Dot1p priorities are 0-7. For a PFC trac class,
map only one dot1p value to a qos-group number; for Broadcom-based NPU platforms, the qos-group number and the dot1p
value must be the same. A qos-group number is used only internally to classify ingress trac classes.
trust dot1p-map dot1p-map-name
qos-group {0-7} dot1p {0-7}
exit
2 Apply the trust dot1p-map policy to ingress trac in SYSTEM-QOS or INTERFACE mode.
trust-map dot1p trust-policy—map-name
Congure trac-class-queue mapping
Decide if you want to use the default trac-class-queue mapping or congure a non-default trac-class-to-queue mapping.
Traffic Class : 0 1 2 3 4 5 6 7
Queue : 0 1 2 3 4 5 6 7
If you are using the default trac-class-to-queue map, no further conguration steps are necessary.
1 Create a trac-class-to-queue map in CONFIGURATION mode. Assign a trac class (qos-group) to a queue in QOS-MAP mode
using 1-to-1 mappings. For a PFC trac class, map only one
qos-group value to a queue number. A qos-group number is used
only internally to classify ingress trac.
qos—map traffic-class tc-queue-map-name
queue {0-7} qos-group {0-7}
exit
2 Apply the trac-class-queue map in SYSTEM-QOS or INTERFACE mode.
qos-map traffic-class tc-queue-map-name
View interface PFC conguration
OS10# show interface priority-flow-control
Congure PFC
Priority ow control (PFC) provides a pause mechanism based on the 802.1p priorities in ingress trac. PFC prevents frame loss due to
network congestion. Congure PFC lossless buers, and enable pause frames for dot1p trac on a per-interface basis. Repeat the PFC
conguration on each PFC-enabled interface. PFC is disabled by default.
Decide if you want to use the default dot1p-priority-to-trac class mapping and the default trac-class-to-queue mapping. See PFC
conguration notes to change the default settings.
Conguration steps:
1 Create PFC dot1p trac classes.
2 Congure ingress buers for PFC trac.
3 Apply a service policy and enable PFC.
4 (Optional) Congure the PFC shared buer for lossless trac.
Create PFC dot1p trac classes
Converged data center services
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