华为技术培训教程-基于类的QoS.ppt

基于类的QOS,Page1,前 言,本课程主要介绍基于类的QoS的概念和配置方法。,Page2,培训目标,学完本课程后，您应该能： 描述基于类的QoS的基本概念 配置基于类的QoS,Page3,基于类的QoS,基于类的QoS是一种新的QoS命令下发方式 将原来的QoS命令整合为三大部分 流分类（traffic classifier） 采用一定的规则识别出符合某类特征的报文 流动作（traffic behavior） 对报文做的一些QoS动作集合 流量策略（traffic policy） 流分类与流动作的组合,Page4,流分类,使用Traffic Classifier命令来定义流量类 Traffic Classifier 以ACL为基础，但又不同于ACL 分类的依据包括 报文的优先级 协议类型 MAC地址 输入接口 VLAN优先级 端口号,Page5,Traffic Classifier分类器使用if-math语句定义分类规则。,配置Traffic Classifier,RTAtraffic classifier Class1 RTA-classifier-Class1if-match ? acl Specify ACL to match any Specify any packets to match atmclp Specify CLP (Cell Loss Priority) to match classifier Specify traffic classifier to match destination-mac Specify destination MAC address to match dot1p-cos Specify IEEE 802.1p COS to match dscp Specify DSCP (DiffServ CodePoint) to match fr-de Specify the fr-de to match inbound-interface Specify an inbound interface to match ip-precedence Specify IP precedence to match mpls-exp Specify MPLS EXP value to match not Rule of not matching the statement outbound-subinterface Specify an outbound subinterface to match protocol Specify protocol to match rtp Specify RTP port to match source-mac Specify source MAC address to match,Page6,Page7,流动作,基于类的标记动作 基于类的流量监管和整形动作 CBQ动作 基于类的WRED动作,Page8,配置基于类的标记动作,RTAtraffic behavior Behavior1 RTA-behavior-Behavior1remark ? atmclp Remark ATM CLP dot1p Remark IEEE802.1p COS dscp Remark DSCP(DiffServ CodePoint) fr-de Remark fr-de ip-precedence Remark IP precedence mpls-exp Remark MPLS EXP,Page9,Page10,配置基于类的流量监管和整形动作,RTAtraffic behavior Behavior1 RTA-behavior-Behavior1car cir cir cbs cbs ebs ebs green action red action ,RTAtraffic behavior Behavior1 RTA-behavior-Behavior1gts cir cir cbs cbs ebs ebs queue-length queue-length ,RTAtraffic behavior Behavior1 RTA-behavior-Behavior1lr cir cir cbs cbs ebs ebs 或者 RTA-behavior-Behavior1lr percent cir cir cbs cbs ebs ebs ,Page11,CBQ：Class-based Queuing,需由此接口 发送的报文,出队调度,离开接口的报文,图示说明：,各类报文,分类,BQ1,紧急队列,Default Class FIFO/WFQ,RTP优先队列,LLQ,BQ2,BQ64,LLQ：支撑EF业务 BQ：支撑AF业务 WFQ：支撑BE业务,Page12,Page13,配置CBQ动作,RTAtraffic behavior Behavior1 RTA-behavior-Behavior1 queue af bandwidth bandwidth | pct percentage ,RTAtraffic behavior Behavior1 RTA-behavior-Behavior1 queue wfq queue-number total-queue-number ,RTAtraffic behavior Behavior1 RTA-behavior-Behavior1 queue-length queue-length,RTAtraffic behavior Behavior1 RTA-behavior-Behavior1 queue ef bandwidth bandwidth cbs cbs | pct percentage ,Page14,Page15,配置基于类的WRED动作,RTAtraffic behavior Behavior1 RTA-behavior-Behavior1 wred dscp | ip-precedence RTA-behavior-Behavior1 wred weighting-constant exponent RTA-behavior-Behavior1 wred dscp dscp-value low-limit low-limit hjgh-limit high-limit discard-probability discard-probability RTA-behavior-Behavior1 wred ip-precedence ip-precedence low-limit low-limit high-limit high-limit discard-probability discard-probability ,Page16,流量策略,流量策略把流量类和流量动作关联 流量策略可以嵌套 父策略的动作是一个子策略 目前支持两层嵌套,RTAqos policy Policy1 RTA-qospolicy-Policy1classifier classifier-name behavior behavior-name,RTAtraffic behavior Behavior1 RTA-behavior-Behavior1traffic-policy Policy1,Page17,Page18,基于类的QoS配置示例,在RTA上将流量分成3类：AF11、AF21、EF RTB上 保证分配给AF11的流量5带宽 将AF21流量重新标记成AF22，并分配5带宽 保证EF流量的时延和抖动，并提供30带宽,Page19,基于类的QoS配置示例RTA的配置,acl number 2001 rule 0 permit source 1.1.1.1 0 acl number 2002 rule 0 permit source 2.2.2.2 0 acl number 2003 rule 0 permit source 3.3.3.3 0 traffic classifier Class_af11 operator and if-match acl 2001 traffic classifier Class_af21 operator and if-match acl 2002 traffic classifier Class_ef operator and if-match acl 2003 traffic behavior Behavior_af11 remark dscp af11 traffic behavior Behavior_af21 remark dscp af21 traffic behavior Behavior_ef remark dscp ef qos policy Mark classifier Class_af11 behavior Behavior_af11 classifier Class_af21 behavior Behavior_af21 classifier Class_ef behavior Behavior_ef interface Serial0 ip address 12.12.12.1 255.255.255.252 qos apply policy Mark outbound,Page20,基于类的QoS配置示例RTB的配置,traffic classifier Class_af11 operator and if-match dscp af11 traffic classifier Class_af21 operator and if-match dscp af21 traffic classifier Class_ef operator and if-match dscp ef # traffic behavior Behavior_af11 queue af bandwidth pct 5 traffic behavior Behavior_af21 remark dscp af22 queue af bandwidth pct 5 traffic behavior Behavior_ef queue ef bandwidth pct 30 # qos policy dscp classifier Class_af11 behavior Behavior_af11 classifier Class_af21 behavior Behavior_af21 classifier Class_ef behavior Behavior_ef interface Serial1 ip address 23.23.23.1 255.255.255.252 qos apply policy dscp outbound,Page21,基于类的QoS配置示例调试一,RTBdisplay qos policy interface Serial 1 Interface: Serial1 Direction: Outbound Policy: dscp Classifier: default-class Matched : 211/14536 (Packets/Bytes) Rule(s) : if-match any Behavior: be Default Queue: Flow Based Weighted Fair Queuing Max number of hashed queues: 256 Matched : 0/0 (Packets/Bytes) Enqueued : 0/0 (Packets/Bytes) Discarded: 0/0 (Packets/Bytes),Page22,基于类的QoS配置示例调试二,RTBdisplay qos policy interface Serial 1 Classifier: Class_af11 Matched : 5/420 (Packets/Bytes) Operator: AND Rule(s) : if-match dscp af11 Behavior: Behavior_af11 Assured Forwarding: Bandwidth 2 (Kbps) Matched : 0/0 (Packets/Bytes) Enqueued : 0/0 (Packets/Bytes) Discarded: 0/0 (Packets/Bytes),Page23,基于类的QoS配置示例调试三,RTBdisplay qos policy interface Serial 1 Classifier: Class_af21 Matched : 15/1260 (Packets/Bytes) Operator: AND Rule(s) : if-match dscp af21 Behavior: Behavior_af21 Marking: Remark DSCP af22 Remarked: