Deployment Guide

9 Dell EMC Networking – Deploying Data Center Bridging | Document ID
OS10 based switch configuration – All other switches besides “S4048-ON-3”
1. Turn on DCBx on the switch.
a. Switch# conf t
b. Switch(config# dcbx en
2. Turn on ETS.
a. Switch(config)# system qos
b. Switch(config-sys-qos)# ets mode on
c. Switch(config-sys-qos)# end
d. Switch#
3. Configure the qos-map to match the queues to the CoS values
a. Switch# conf t
b. Switch(config)# qos-map traffic-class qmap
c. Switch(config-qos-map)# queue 0 qos-group 0-3,5-7
d. Switch(config-qos-map)# queue 4 qos-group 4
4. Start configuring the class maps to be used with all respective policy maps – first one “queueing”.
4a. Queueing – Refers to the queues configured in step 3.
a. Switch# conf t
b. Switch(config)# class-map type queueing q0
c. Switch(config-cmap-queuing)# match queue 0
d. Switch(config-cmap-queuing)# exit
e. Switch(config)# class-map type queuing q4
f. Switch(config-cmap-queuing)# match queue 4
g. Switch(config-cmap-queuing)# exit
h. Switch(config)#
4b. Network-qos – This class map is used by the service policy input and applied as ingress traffic.
(See “Interface configuration” in step 6)
a. Switch# conf t
b. Switch(config)# class-map type network-qos temp
c. Switch(config-cmap-nqos)# match qos-group 4
5. Start configuring the relevant policy maps that will use the class-maps defined in steps 3-4 and
self-generated class “class-trust”.
a. Switch# conf t
b. Switch(config)# policy-map type qos trust_dot1p
c. Switch(config-pmap-qos)# class class-trust
d. Switch(config-pmap-c-qos)# trust dot1p
5a. ETS policy map – Assigning bandwidth percentage to each queue.
a. Switch# conf t
b. Switch(config)# policy-map type queuing q1
c. Switch(config-pmap-queuing)# class q0
d. Switch(config-pmap-c-que)# bandwidth percent 1
e. Switch(config-pmap-c-que)# exit
f. Switch(config-pmap-queuing)# class q4
g. Switch(config-pmap-c-que)# bandwidth percent 99
5b. PFC policy map – Policy map turning pfc “ON” on CoS 4 or iSCSI flows.