H3C SR8800 队列调度策略典型配置举例

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Copyright © 2014 杭州华三通信技术有限公司 版权所有，保留一切权利。 非经本公司书面许可，任何单位和个人不得擅自摘抄、复制本文档内容的部分或全部， 并不得以任何形式传播。本文档中的信息可能变动，恕不另行通知。

目  录

1 简介

2 配置前提

3 使用限制

4 队列调度策略配置举例

4.1 组网需求

4.2 配置思路

4.3 使用版本

4.4 配置注意事项

4.5 配置步骤

4.5.1 Router S1的配置

4.5.2 Router A1的配置

4.6 验证配置

4.7 配置文件

5 相关资料

 

1  简介

本文档介绍了队列调度策略的配置举例。

队列调度策略就是当路由器的某个端口发生拥塞时，通过在一个QoS策略中配置各个队列的调度参数，最后在接口应用该策略来实现拥塞管理功能。

2  配置前提

本文档中的配置均是在实验室环境下进行的配置和验证，配置前设备的所有参数均采用出厂时的缺省配置。如果您已经对设备进行了配置，为了保证配置效果，请确认现有配置和以下举例中的配置不冲突。

本文假设您已了解队列调度策略特性。

3  使用限制

仅MPE单板的接口子卡MIC-GP8L和SPC单板支持队列调度策略。

4  队列调度策略配置举例

4.1  组网需求

如图1所示，某公司在省内各市和省中心之间通过双上行链路互连，公司内网的业务分为以下三种：

·     视频相关业务：使用IP网段10.1.0.0/16（其中省中心内网使用IP网段10.1.1.0/24；A市内网使用IP网段10.1.2.0/24……F市内网使用IP网段10.1.7.0/24）；

·     生产相关业务：使用IP网段10.2.0.0/16（其中省中心内网使用IP网段10.2.1.0/24；A市内网使用IP网段10.2.2.0/24……F市内网使用IP网段10.2.7.0/24）；

·     语音相关业务：使用IP网段10.3.0.0/16（其中省中心内网使用IP网段10.3.1.0/24；A市内网使用IP网段10.3.2.0/24……F市内网使用IP网段10.3.7.0/24）。

现要求通过配置队列调度策略实现当网络发生拥塞时，三种业务（视频相关业务：生产相关业务：语音相关业务）之间按照调度比重2：1：1的权重进行调度。

图1 队列调度策略配置举例组网图

 

4.2  配置思路

由于本例中三种业务均为IP业务，为了将三种业务流量入不同的队列，可以通过配置标记报文的IP优先级方式，将不同的业务流量指定至对应的队列中。

当发生拥塞时，若要实现三种业务按照2：1：1的权重比例进行调度，需要将三种业务规划到同一WRR优先组的不同队列中。在本例中指定视频业务为队列2，生产业务为队列3，语音业务为队列4（缺省情况下，SPC单板接口的1、2、3、4队列加入WRR优先组1使用加权轮询调度，0、5、6、7队列使用严格优先级调度），并通过配置指定队列的调度策略来实现三个队列之间的调度权重比为2：1：1。

4.3  使用版本

本举例是在 SR8800-CMW520-R3725 版本上进行配置和验证的。

4.4  配置注意事项

配置WRR队列时，每个WRR优先组内的队列号应该连续，否则会影响调度效果（比如：不要配置WRR优先组1包含队列2、4、6，WRR优先组2包含队列3、5、7进行调度）。

4.5  配置步骤

4.5.1  Router S1的配置

 

(1)     在内网入端口区分不同业务的流量进入不同的队列

# 创建ACL 3000用于匹配视频业务，并创建流行为重标记该业务的IP优先级为2。

<Router S1> system-view

[Router S1] acl number 3000

[Router S1-acl-adv-3000] rule 0 permit ip source 10.1.1.0 0.0.0.255 destination 10.1.0.0 0.0.255.255

[Router S1-acl-adv-3000] quit

[Router S1] traffic classifier video

[Router S1-classifier-video] if-match acl 3000

[Router S1-classifier-video] quit

[Router S1] traffic behavior video

[Router S1-behavior-video] remark ip-precedence 2

[Router S1-behavior-video] quit

# 创建ACL 3001用于匹配生产业务，并创建流行为重标记该业务的IP优先级为3。

[Router S1] acl number 3001

[Router S1-acl-adv-3001] rule 0 permit ip source 10.2.1.0 0.0.0.255 destination 10.2.0.0 0.0.255.255

[Router S1-acl-adv-3001] quit

[Router S1] traffic classifier production

[Router S1-classifier-production] if-match acl 3001

[Router S1-classifier-production] quit

[Router S1] traffic behavior production

[Router S1-behavior-production] remark ip-precedence 3

[Router S1-behavior-production] quit

# 创建ACL 3002用于匹配语音业务，并创建流行为重标记该业务的IP优先级为4。

[Router S1] acl number 3002

[Router S1-acl-adv-3002] rule 0 permit ip source 10.3.1.0 0.0.0.255 destination 10.3.0.0 0.0.255.255

[Router S1-acl-adv-3002] quit

[Router S1] traffic classifier voice

[Router S1-classifier-voice] if-match acl 3002

[Router S1-classifier-voice] quit

[Router S1] traffic behavior voice

[Router S1-behavior-voice] remark ip-precedence 4

[Router S1-behavior-voice] quit

# 配置QoS策略policy1，为三种业务流量分别指定对应的流行为。

[Router S1] qos policy policy1

[Router S1-qospolicy-policy1] classifier video behavior video

[Router S1-qospolicy-policy1] classifier production behavior production

[Router S1-qospolicy-policy1] classifier voice behavior voice

[Router S1-qospolicy-policy1] quit

# 在业务流量的入接口GigabitEthernet4/0/1上应用QoS策略policy1。

[Router S1] interface GigabitEthernet 4/0/1

[Router S1-GigabitEthernet4/0/1] qos apply policy policy1 inbound

[Router S1-GigabitEthernet4/0/1] quit

(2)     在外网出端口配置调度策略

# 配置队列调度策略qm1，实现视频、生产和语音三个队列之间的调度权重比为2：1：1。

[Router S1] qos qmprofile qm1

[Router S1-qmprofile-qm1] queue 2 wrr group 1 weight 2

[Router S1-qmprofile-qm1] queue 3 wrr group 1 weight 1

[Router S1-qmprofile-qm1] queue 4 wrr group 1 weight 1

[Router S1-qmprofile-qm1] quit

# 在业务流量的出接口GigabitEthernet3/0/1和GigabitEthernet3/0/2上应用队列调度策略qm1。

[Router S1] interface GigabitEthernet 3/0/1

[Router S1-GigabitEthernet3/0/1] qos apply qmprofile qm1

[Router S1-GigabitEthernet3/0/1] quit

[Router S1] interface GigabitEthernet 3/0/2

[Router S1-GigabitEthernet3/0/2] qos apply qmprofile qm1

[Router S1-GigabitEthernet3/0/2] quit

4.5.2  Router A1的配置

 

(1)     在内网端口区分不同业务的流量进入不同的队列

# 创建ACL 3000用于匹配视频业务，并创建流行为重标记该业务的IP优先级为2。

<Router A1> system-view

[Router A1] acl number 3000

[Router A1-acl-adv-3000] rule 0 permit ip source 10.1.2.0 0.0.0.255 destination 10.1.0.0 0.0.255.255

[Router A1-acl-adv-3000] quit

[Router A1] traffic classifier video

[Router A1-classifier-video] if-match acl 3000

[Router A1-classifier-video] quit

[Router A1] traffic behavior video

[Router A1-behavior-video] remark ip-precedence 2

[Router A1-behavior-video] quit

# 创建ACL 3001用于匹配生产业务，并创建流行为重标记该业务的IP优先级为3。

[Router A1] acl number 3001

[Router A1-acl-adv-3001] rule 0 permit ip source 10.2.2.0 0.0.0.255 destination 10.2.0.0 0.0.255.255

[Router A1-acl-adv-3001] quit

[Router A1] traffic classifier production

[Router A1-classifier-production] if-match acl 3001

[Router A1-classifier-production] quit

[Router A1] traffic behavior production

[Router A1-behavior-production] remark ip-precedence 3

[Router A1-behavior-production] quit

# 创建ACL 3002用于匹配语音业务，并创建流行为重标记该业务的IP优先级为4。

[Router A1] acl number 3002

[Router A1-acl-adv-3002] rule 0 permit ip source 10.3.2.0 0.0.0.255 destination 10.3.0.0 0.0.255.255

[Router A1-acl-adv-3002] quit

[Router A1] traffic classifier voice

[Router A1-classifier-voice] if-match acl 3002

[Router A1-classifier-voice] quit

[Router A1] traffic behavior voice

[Router A1-behavior-voice] remark ip-precedence 4

[Router A1-behavior-voice] quit

# 配置QoS策略policy1，为三种业务流量分别指定对应的流行为。

[Router A1] qos policy policy1

[Router A1-qospolicy-policy1] classifier video behavior video

[Router A1-qospolicy-policy1] classifier production behavior production

[Router A1-qospolicy-policy1] classifier voice behavior voice

[Router A1-qospolicy-policy1] quit

# 在业务流量的入接口GigabitEthernet4/0/1上应用QoS策略policy1。

[Router A1] interface GigabitEthernet 4/0/1

[Router A1-GigabitEthernet4/0/1] qos apply policy policy1 inbound

[Router A1-GigabitEthernet4/0/1] quit

(2)     在外网端口配置调度策略

# 配置队列调度策略qm1，实现语音、生产和视频三个队列之间的调度权重比为1：1：2。

[Router A1] qos qmprofile qm1

[Router A1-qmprofile-qm1] queue 2 wrr group 1 weight 2

[Router A1-qmprofile-qm1] queue 3 wrr group 1 weight 1

[Router A1-qmprofile-qm1] queue 4 wrr group 1 weight 1

[Router A1-qmprofile-qm1] quit

# 在业务流量的出接口GigabitEthernet3/0/1上应用队列调度策略qm1。

[Router A1] interface GigabitEthernet 3/0/1

[Router A1-GigabitEthernet3/0/1] qos apply qmprofile qm1

[Router A1-GigabitEthernet3/0/1] quit

4.6  验证配置

所有路由器上的配置显示方法相同，本处仅以Router S1为例。

# 查看业务流量入接口上的QoS策略的配置信息和运行情况。

[Router S1] display qos policy interface GigabitEthernet 4/0/1

 

  Interface: GigabitEthernet4/0/1

 

  Direction: Inbound

 

  Policy: policy1

   Classifier: video

     Operator: AND

     Rule(s) : If-match acl 3000

     Behavior: video

      Marking:

        Remark IP precedence 2

   Classifier: production

     Operator: AND

     Rule(s) : If-match acl 3001

     Behavior: production

      Marking:

        Remark IP precedence 3

   Classifier: voice

     Operator: AND

     Rule(s) : If-match acl 3002

     Behavior: voice

      Marking:

        Remark IP precedence 4

# 查看业务流量出接口上队列调度策略的配置情况。

[Router S1] display qos qmprofile configuration

Queue management profile: qm1

 Queue ID    Type    Group    Weight

 -----------------------------------

 0           SP      N/A      N/A

 1           WRR     1        1

 2           WRR     1        2

 3           WRR     1        1

 4           WRR     1        1

 5           SP      N/A      N/A

 6           SP      N/A      N/A

 7           SP      N/A      N/A

 

4.7  配置文件

·     Router S1

#

 sysname Router S1

#

acl number 3000

 rule 0 permit ip source 10.1.1.0 0.0.0.255 destination 10.1.0.0 0.0.255.255

acl number 3001

 rule 0 permit ip source 10.2.1.0 0.0.0.255 destination 10.2.0.0 0.0.255.255

acl number 3002

 rule 0 permit ip source 10.3.1.0 0.0.0.255 destination 10.3.0.0 0.0.255.255

#

vlan 1

#

traffic classifier video operator and

 if-match acl 3000

traffic classifier production operator and

 if-match acl 3001

traffic classifier voice operator and

 if-match acl 3002

#

traffic behavior video

 remark ip-precedence 2

traffic behavior production

 remark ip-precedence 3

traffic behavior voice

 remark ip-precedence 4

#

qos policy policy1

 classifier video behavior video

 classifier production behavior production

 classifier voice behavior voice

#

qos qmprofile qm1

 queue 2 wrr group 1 weight 2

#

interface LoopBack0

#

interface GigabitEthernet4/0/1

 port link-mode route

 qos apply policy policy1 inbound

#

interface GigabitEthernet3/0/1

 port link-mode route

 qos apply qmprofile qm1

#

interface GigabitEthernet3/0/2

 port link-mode route

 qos apply qmprofile qm1

#

return

·     Router S2

#

 sysname Router S2

#

acl number 3000

 rule 0 permit ip source 10.1.1.0 0.0.0.255 destination 10.1.0.0 0.0.255.255

acl number 3001

 rule 0 permit ip source 10.2.1.0 0.0.0.255 destination 10.2.0.0 0.0.255.255

acl number 3002

 rule 0 permit ip source 10.3.1.0 0.0.0.255 destination 10.3.0.0 0.0.255.255

#

vlan 1

#

traffic classifier video operator and

 if-match acl 3000

traffic classifier production operator and

 if-match acl 3001

traffic classifier voice operator and

 if-match acl 3002

#

traffic behavior video

 remark ip-precedence 2

traffic behavior production

 remark ip-precedence 3

traffic behavior voice

 remark ip-precedence 4

#

qos policy policy1

 classifier video behavior video

 classifier production behavior production

 classifier voice behavior voice

#

qos qmprofile qm1

 queue 2 wrr group 1 weight 2

#

interface LoopBack0

#

interface GigabitEthernet4/0/2

 port link-mode route

 qos apply policy policy1 inbound

#

interface GigabitEthernet3/0/1

 port link-mode route

 qos apply qmprofile qm1

#

interface GigabitEthernet3/0/2

 port link-mode route

 qos apply qmprofile qm1

#

return

·     Router A1

#

 sysname Router A1

#

acl number 3000

 rule 0 permit ip source 10.1.2.0 0.0.0.255 destination 10.1.0.0 0.0.255.255

acl number 3001

 rule 0 permit ip source 10.2.2.0 0.0.0.255 destination 10.2.0.0 0.0.255.255

acl number 3002

 rule 0 permit ip source 10.3.2.0 0.0.0.255 destination 10.3.0.0 0.0.255.255

#

vlan 1

#

traffic classifier video operator and

 if-match acl 3000

traffic classifier production operator and

 if-match acl 3001

traffic classifier voice operator and

 if-match acl 3002

#

traffic behavior video

 remark ip-precedence 2

traffic behavior production

 remark ip-precedence 3

traffic behavior voice

 remark ip-precedence 4

#

qos policy policy1

 classifier video behavior video

 classifier production behavior production

 classifier voice behavior voice

#

qos qmprofile qm1

 queue 2 wrr group 1 weight 2

#

interface LoopBack0

#

interface GigabitEthernet4/0/1

 port link-mode route

 qos apply policy policy1 inbound

#

interface GigabitEthernet3/0/1

 port link-mode route

 qos apply qmprofile qm1

#

return

·     Router A2

#

 sysname Router A2

#

acl number 3000

 rule 0 permit ip source 10.1.2.0 0.0.0.255 destination 10.1.0.0 0.0.255.255

acl number 3001

 rule 0 permit ip source 10.2.2.0 0.0.0.255 destination 10.2.0.0 0.0.255.255

acl number 3002

 rule 0 permit ip source 10.3.2.0 0.0.0.255 destination 10.3.0.0 0.0.255.255

#

vlan 1

#

traffic classifier video operator and

 if-match acl 3000

traffic classifier production operator and

 if-match acl 3001

traffic classifier voice operator and

 if-match acl 3002

#

traffic behavior video

 remark ip-precedence 2

traffic behavior production

 remark ip-precedence 3

traffic behavior voice

 remark ip-precedence 4

#

qos policy policy1

 classifier video behavior video

 classifier production behavior production

 classifier voice behavior voice

#

qos qmprofile qm1

 queue 2 wrr group 1 weight 2

#

interface LoopBack0

#

interface GigabitEthernet4/0/1

 port link-mode route

 qos apply policy policy1 inbound

#

interface GigabitEthernet3/0/1

 port link-mode route

 qos apply qmprofile qm1

#

return

·     Router F1

#

 sysname Router F1

#

acl number 3000

 rule 0 permit ip source 10.1.7.0 0.0.0.255 destination 10.1.0.0 0.0.255.255

acl number 3001

 rule 0 permit ip source 10.2.7.0 0.0.0.255 destination 10.2.0.0 0.0.255.255

acl number 3002

 rule 0 permit ip source 10.3.7.0 0.0.0.255 destination 10.3.0.0 0.0.255.255

#

vlan 1

#

traffic classifier video operator and

 if-match acl 3000

traffic classifier production operator and

 if-match acl 3001

traffic classifier voice operator and

 if-match acl 3002

#

traffic behavior video

 remark ip-precedence 2

traffic behavior production

 remark ip-precedence 3

traffic behavior voice

 remark ip-precedence 4

#

qos policy policy1

 classifier video behavior video

 classifier production behavior production

 classifier voice behavior voice

#

qos qmprofile qm1

 queue 2 wrr group 1 weight 2

#

interface LoopBack0

#

interface GigabitEthernet4/0/1

 port link-mode route

 qos apply policy policy1 inbound

#

interface GigabitEthernet3/0/2

 port link-mode route

 qos apply qmprofile qm1

#

return

·     Router F2

#

 sysname Router F2

#

acl number 3000

 rule 0 permit ip source 10.1.7.0 0.0.0.255 destination 10.1.0.0 0.0.255.255

acl number 3001

 rule 0 permit ip source 10.2.7.0 0.0.0.255 destination 10.2.0.0 0.0.255.255

acl number 3002

 rule 0 permit ip source 10.3.7.0 0.0.0.255 destination 10.3.0.0 0.0.255.255

#

vlan 1

#

traffic classifier video operator and

 if-match acl 3000

traffic classifier production operator and

 if-match acl 3001

traffic classifier voice operator and

 if-match acl 3002

#

traffic behavior video

 remark ip-precedence 2

traffic behavior production

 remark ip-precedence 3

traffic behavior voice

 remark ip-precedence 4

#

qos policy policy1

 classifier video behavior video

 classifier production behavior production

 classifier voice behavior voice

#

qos qmprofile qm1

 queue 2 wrr group 1 weight 2

#

user-group system

 group-attribute allow-guest

#

interface LoopBack0

#

interface GigabitEthernet4/0/1

 port link-mode route

 qos apply policy policy1 inbound

#

interface GigabitEthernet3/0/2

 port link-mode route

 qos apply qmprofile qm1

#

return

5  相关资料

·     《H3C SR8800万兆核心路由器  ACL和QoS配置指导》中的“ACL”

·     《H3C SR8800万兆核心路由器  ACL和QoS命令参考》中的“ACL”

·     《H3C SR8800万兆核心路由器  ACL和QoS配置指导》中的“QoS”

·     《H3C SR8800万兆核心路由器  ACL和QoS命令参考》中的“QoS”