Dell MX9116n EMC SmartFabric OS10 User Guide Release 10.5.1 - Page 1341
Bandwidth configuration for RoCEv1
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NOTE: When you use the pause command without any parameters, the system uses the default buffer settings. To modify the buffer settings, use the pause command and specify the buffer size, pause threshold, and resume threshold. See Priority flow control and the pause command for more information. 6. Create queuing-type class-maps and policy-map for enhanced transmission selection (ETS), bandwidth, and ECN configurations. See Enhanced transmission selection and Bandwidth allocation for more information. Bandwidth configuration for RoCEv1: OS10 (config)# class-map type queuing Q0 OS10 (config-cmap-queuing)# match queue 0 OS10 (config)# class-map type queuing Q3 OS10 (config-cmap-queuing)# match queue 3 OS10 (config)# policy-map type queuing policy_2Q OS10 (config-pmap-queuing)# class Q0 OS10 (config-pmap-c-que)# bandwidth percent 30 OS10 (config-pmap-c-que)# exit OS10 (config-pmap-queuing)# class Q3 OS10 (config-pmap-c-que)# bandwidth percent 70 Bandwidth and ECN configuration for RoCEv2 with ECN queue association: OS10 (config)# class-map type queuing Q0 OS10 (config-cmap-queuing)# match queue 0 OS10 (config)# class-map type queuing Q3 OS10 (config-cmap-queuing)# match queue 3 OS10(config)# wred wred_ecn OS10(config-wred)# random-detect ecn OS10(config-wred)# random-detect color green minimum-threshold 1000 maximum-threshold 2000 drop-probability 100 OS10(config-wred)# random-detect color yellow minimum-threshold 500 maximum-threshold 1000 drop-probability 100 OS10(config-wred)# random-detect color red minimum-threshold 100 maximum-threshold 500 drop-probability 100 OS10(config-wred)# exit OS10(config)# policy-map type queuing policy_2Q OS10(config-pmap-queuing)# class Q0 OS10(config-pmap-c-que)# bandwidth percent 30 OS10(config-pmap-c-que)# exit OS10(config-pmap-queuing)# class Q3 OS10(config-pmap-c-que)# bandwidth percent 70 OS10(config-pmap-c-que)# random-detect wred_ecn OS10(config-pmap-c-que)# end OS10# 7. Create a QoS map for ETS to map the lossy and lossless traffic to the respective queues. OS10 (config)# qos-map traffic-class 2Q OS10(config-qos-map)# queue 0 qos-group 0-2, 4-7 OS10(config-qos-map)# queue 3 qos-group 3 8. Perform the following configurations on all switch interfaces where you want to support RoCE: ● For RoCEv1: a. Enter INTERFACE mode and enter the no shutdown command. OS10# configure terminal OS10 (config)# interface ethernet 1/1/1 OS10 (conf-if-eth1/1/1)# no shutdown b. Change the switch port mode to Trunk mode. OS10 (conf-if-eth1/1/1)# switchport mode trunk Quality of service 1341
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