11.4 CBQ的配置
【需求】
路由器执行染色并执行cbq
对内网发过来的数据包染色
数据包分类：
为方便运行维护管理，供QoS使用的访问控制列表号码统一规范为下述命令中的号码
acl n 3181 //视频业务
…….
acl n 3182 //关键业务1
……
acl n 3183 //关键业务2
…….
acl n 3184 //关键业务3
……
acl n 3185 //信息网站
……….
acl n 3186 //下载业务
…………
acl n 3187 //其他业务
………….
根据上面acl对路由器接收到的不同类型的数据包标记不同的dscp值：
[Quidway]traffic classifier VideoAudio
[Quidway-classifier-VideoAudio]if-match acl 3181
[Quidway]traffic classifier Critical-1
[Quidway-classifier- Critical-1] if-match acl 3182
[Quidway]traffic classifier Critical-2
[Quidway-classifier- Critical-2] if-match acl 3183
[Quidway]traffic classifier Critical-3
[Quidway-classifier- Critical-3] if-match acl 3184
[Quidway]traffic classifier Information
[Quidway-classifier- Information] if-match acl 3185
[Quidway]traffic classifier Quantity
[Quidway-classifier- Quantity] if-match acl 3186
[Quidway]traffic classifier default
[Quidway-classifier-default] if-match acl 3187
定义染色的动作:
//语音视频业务
[Quidway]traffic behavior VideoAudio
[Quidway-behavior-VideoAudio]remark dscp 46
//关键业务1
[Quidway]traffic behavior Critical-1
[Quidway-behavior-Critical-1]remark dscp 34
//关键业务2
[Quidway]traffic behavior Critical-2
[Quidway-behavior-Critical-2]remark dscp 26
//关键业务3
[Quidway]traffic behavior Critical-3
[Quidway-behavior-Critical-3]remark dscp 35
//信息网站
[Quidway]traffic behavior Information
[Quidway-behavior-Information]remark dscp 18
//批量业务
[Quidway]traffic behavior Quantity
[Quidway-behavior-Quantity]remark dscp 10
//其它业务
[Quidway]traffic behavior default
[Quidway-behavior-default]remark dscp 0
对本地交换机快速以太网接口上行包染色:
[Quidway]#qos policy RS_down_local //至本地交换机快速以太网接口
[Quidway-qospolicy-RS_down_local]class VideoAudio behavior VideoAudio2
[Quidway-qospolicy-RS_down_local]class Critical-1 behavior Critical-1
[Quidway-qospolicy-RS_down_local]class Critical-2 behavior Critical-2
[Quidway-qospolicy-RS_down_local]class Information behavior Information
[Quidway-qospolicy-RS_down_local]class Quantity behavior Quantity
[Quidway-qospolicy-RS_down_local]class default behavior default
策略应用：
在相应的端口应用相应的QOS保障策略
[Quidway]int 端口(至本地交换机)
[Quidway-端口]qos apply policy RS_down_local in
对符合染色定义的包执行cbq
根据本规范中第2.1.2小节定义，对路由器接收到的不同优先级的数据包，划分不同的服务类别：
[Quidway]traffic classifier VideoAudio2
[Quidway-classifier-VideoAudio]if-match dscp 46
[Quidway]traffic classifier Critical-12
[Quidway-classifier- Critical-1]if-match dscp 34
[Quidway]traffic classifier Critical-22
[Quidway-classifier- Critical-2]if-match dscp 26
[Quidway]traffic classifier Critical-32
[Quidway-classifier- Critical-3]if-match dscp 35
[Quidway]traffic classifier Information2
[Quidway-classifier- Information]if-match dscp 18
[Quidway]traffic classifier Quantity2
[Quidway-classifier- Quantity]if-match dscp 10
[Quidway]traffic classifier default2
[Quidway-classifier-default]if-match dscp 0
策略定义：
针对不同的链路出口定义不同的策略
至省会X的主线路接口:
//语音视频业务
[Quidway]traffic behavior VideoAudio2
[Quidway-behavior-VideoAudio2]queue af bandwidth 800
//关键业务1
[Quidway]traffic behavior Critical-12
[Quidway-behavior-Critical-12]queue ef bandwidth pct 10
[Quidway-behavior-Critical-12]wred dscp
[Quidway-behavior-Critical-12]wred dscp 34 low-limit 24 high-limit 40 discard-probability 10
//关键业务2
[Quidway]traffic behavior Critical-22
[Quidway-behavior-Critical-22]queue ef bandwidth pct 10
[Quidway-behavior-Critical-22]wred dscp
[Quidway-behavior-Critical-22]wred dscp 26 low-limit 24 high-limit 40 discard-probability 10
//信息网站
[Quidway]traffic behavior Information2
[Quidway-behavior-Information2]queue ef bandwidth pct 10
[Quidway-behavior-Information2]wred dscp
[Quidway-behavior-Information2]wred dscp 18 low-limit 24 high-limit 40 discard-probability 10
//批量业务
[Quidway]traffic behavior Quantity2
[Quidway-behavior-Quantity2]queue ef bandwidth pct 5
[Quidway-behavior-Quantity2]wred dscp
[Quidway-behavior-Quantity2]wred dscp 10 low-limit 24 high-limit 40 discard-probability 10
//其它业务
[Quidway]traffic behavior default2
[Quidway-behavior-default2]queue ef bandwidth pct 5
[Quidway-behavior-default2]wred dscp
[Quidway-behavior-default2]wred dscp 0 low-limit 24 high-limit 40 discard-probability 10
[Quidway]#qos policy QoS_up_Y1 //至省会X的主线路接口
[Quidway-qospolicy-QoS_up_Y1]class VideoAudio2 behavior VideoAudio2
[Quidway-qospolicy-QoS_up_Y1]class Critical-12 behavior Critical-12
[Quidway-qospolicy-QoS_up_Y1]class Critical-22 behavior Critical-22
[Quidway-qospolicy-QoS_up_Y1]class Information2 behavior Information2
[Quidway-qospolicy-QoS_up_Y1]class Quantity behavior2 Quantity2
[Quidway-qospolicy-QoS_up_Y1]class default2 behavior default2
至本地交换机快速以太网接口:
[Quidway]traffic behavior VideoAudio3
[Quidway-behavior-VideoAudio3]queue af bandwidth 20000
[Quidway]#qos policy QoS_down_local //至本地交换机快速以太网接口
[Quidway-qospolicy-QoS_down_local]class VideoAudio2 behavior VideoAudio3
[Quidway-qospolicy- QoS_down_local]class Critical-12 behavior Critical-12
[Quidway-qospolicy- QoS_down_local]class Critical-22 behavior Critical-22
[Quidway-qospolicy-QoS_down_local]class Information2 behavior Information2
[Quidway-qospolicy-QoS_down_local]class Quantity2 behavior Quantity2
[Quidway-qospolicy-QoS_down_local]class default2 behavior default2
策略应用：
在相应的端口应用相应的QOS保障策略
[Quidway]int 端口(至Y地市中支主线路)
[Quidway-端口]qos apply policy QoS_up_Y1 out
[Quidway]int 端口(至本地交换机)
[Quidway-端口]qos apply policy QoS_down_local out