Reference Guide

318 | Data Center Bridging (DCB)
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Figure 13-15. PFC and ETS Configuration on a Port Interface: Example
Configure QoS priority-queue assignment to honor dot1p priorities or use L2 class maps to mark and
map ingress traffic to output queues; for example:
Dell(conf)# service-class dynamic dot1p
Or
Dell(conf)# interface tengigabitethernet 0/1
Dell(conf-if-te-0/1)# service-class dynamic dot1p
Configure a DCB map to configure PFC and ETS settings for priority-group traffic:
Dell(conf)# dcb-map ipc_san_lan
Dell(conf-dcbmap-ipc_san_lan)# priority-group 1 bandwidth 50 pfc on
Dell(conf-dcbmap-ipc_san_lan)# priority-group 2 bandwidth 5 pfc off
Dell(conf-dcbmap-ipc_san_lan)# priority-group 3 bandwidth 45 pfc off
Dell(conf-dcbmap-ipc_san_lan)# priority-pgid 3 3 3 1 2 3 3 3
Apply the DCB map to a port interface:
Dell(conf)# interface tengigabitethernet 0/1
Dell(conf-if-te-0/1)# dcb-map ipc_san_lan
If the DCBx version is CIN, configure a QoS output policy to specify bandwidth allocation to different
traffic types:
Dell(conf)# qos-policy-output lan-q0
Dell(conf-qos-policy-out)# bandwidth-percentage 25
Dell(conf-qos-policy-out)# exit
Dell(conf)#q os-policy-output lan-q3
Dell(conf-qos-policy-out)# bandwidth-percentage 70
Dell(conf-qos-policy-out)# exit
Dell(conf)#policy-map-output ets-queues
Create a QoS policy map for DCBx CIN bandwidth allocation:
Dell(conf)# policy-map-output ets-queues
Dell(conf-policy-map-out)# service-queue 0 qos-policy lan-q0
Dell(conf-policy-map-out)# service-queue 3 qos-policy lan-q3
Apply the QoS policy map for DCBx CIN bandwidth allocation to an interface:
Dell(conf-if-te-0/1)# service-policy output ets-queues