应用介绍

思科交换机的RoCE配置，这篇文章为在基于DSCP的QoS模式下在有损或无损网络上运行RoCE的Cisco交换机提供了一个配置示例。
注意：

配置在Cisco 3232C版本7.0（3）I3（1）上进行了衍生和测试

配置
步骤1-入口流量分类

class-map type qos match-all CNP

match dscp 48

class-map type qos match-all RDMA

match dscp 26

policy-map type qos QOS_MARKING

class RDMA

set qos-group 3

class CNP

set qos-group 6

policy-map type network-qos QOS_NETWORK

class type network-qos c-8q-nq3

pause pfc-cos 3

mtu 2240

policy-map type queuing QOS_QUEUEING

class type queuing c-out-8q-q3

random-detect minimum-threshold 150 kbytes maximum-threshold 1500 kbytes drop-probability 100 weight 0 ecn

bandwidth remaining percent 20

class type queuing c-out-8q-q6

priority level 1

policy-map type queuing INPUT_QOS_QUEUEING

class type queuing c-in-q3

queue-limit dynamic 3

system qos

service-policy type queuing input INPUT_QOS_QUEUEING

service-policy type queuing output QOS_QUEUEING

service-policy type network-qos QOS_NETWORK

hardware access-list tcam region e-racl 0

hardware access-list tcam region vpc-convergence 0

hardware access-list tcam region racl-lite 768

hardware access-list tcam region l3qos-intra-lite 0

hardware access-list tcam region qos 256

hardware access-list tcam region e-qos 256

interface Ethernet1/1-1/32

service-policy type qos input QOS_MARKING

[If lossless] Set PFC

interface Ethernet1/1-1/32

priority-flow-control mode on