Connectivity Guide

Decide if you want to use the default 802.1p priority-to-trac class (qos-group) mapping or congure a new map. By default, the qos
class-trust class map is applies to ingress trac. The class-trust class instructs OS10 interfaces to honor dot1p or dierentiated services
code point (DSCP) trac.
Dot1p Priority : 0 1 2 3 4 5 6 7
Traffic Class : 1 0 2 3 4 5 6 7
• Apply the default trust map specifying that dot1p values are trusted in SYSTEM-QOS or INTERFACE mode.
trust-map dot1p default
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 to 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 ethernet 1/1/1 priority-flow-control details
ethernet1/1/1
Admin Mode : true
Operstatus: true
PFC Priorities: 4
Total Rx PFC Frames: 0
Total Tx PFC frames: 0
Cos Rx Tx
---------------------------------------
0 0 0
1 0 0
2 0 0
3 0 0
4 0 0
5 0 0
6 0 0
7 0 0
Converged data center services
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