Users Guide

● Apply the default trust map specifying that dot1p values are trusted in SYSTEM-QOS or INTERFACE mode.
trust-map dot1p default
Configure a non-default dot1p-priority-to-traffic class mapping
1. Configure a trust map of dot1p traffic classes in CONFIGURATION mode. A trust map does not modify ingress dot1p values
in output flows.
Assign a qos-group to trusted dot1p values in TRUST mode using 1-to-1 mappings. Dot1p priorities are 0 to 7. For a PFC
traffic 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 traffic
classes.
trust dot1p-map dot1p-map-name
qos-group {0-7} dot1p {0-7}
exit
2. Apply the trust dot1p-map policy to ingress traffic in SYSTEM-QOS or INTERFACE mode.
trust-map dot1p trust-policy—map-name
Configure traffic-class-queue mapping
NOTE: Z9332F-ON has different configurations for queue mapping. For more information, see Configure traffic-class to
queue mapping for Z9332F-ON.
Decide if you want to use the default traffic-class-queue mapping or configure a nondefault traffic-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 traffic-class-to-queue map, no further configuration steps are necessary.
1. Create a traffic-class-to-queue map in CONFIGURATION mode. Assign a traffic class (qos-group) to a queue in QOS-
MAP mode using 1-to-1 mappings. For a PFC traffic class, map only one qos-group value to a queue number. A
qos-group number is used only internally to classify ingress traffic.
qos—map traffic-class tc-queue-map-name
queue {0-7} qos-group {0-7}
exit
2. Apply the traffic-class-queue map in SYSTEM-QOS or INTERFACE mode.
qos-map traffic-class tc-queue-map-name
Configure traffic-class to queue mapping for Z9332F-ON
The Z9332F-ON supports 12 queues per Ingress Traffic Manager (ITM) in the front-panel ports. The 12 queues are divided into
eight unicast (UC) and four multicast (MC) combinations. For multicast queues, MCQ index 0 to 2 are used for MC flows. MCQ
index 3 sends control packets from the CPU.
By default, multicast traffic map in the following order:
TC0-TC2 : Q0
TC3-TC5 : Q1
TC6-TC7 : Q2
You can map different traffic classes of UC and MC traffics to different queues, based on the requirement.
Configure TC-to-queue mapping
OS10# show qos maps
Traffic-Class to Queue Map: sundar
Queue Traffic Class Type
---------------------------------------
3 1-3 Unicast
4 4,6,0 Unicast
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