01-H3C SR8800 队列调度策略典型配置举例
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H3C SR8800 队列调度策略典型配置举例
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目 录
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。
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。
仅MPE单板的接口子卡MIC-GP8L和SPC单板支持队列调度策略。
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。
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。
本举例是在 SR8800-CMW520-R3725 版本上进行配置和验证的。
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)。
Router S2的配置和Router S1的配置相似,此处仅以Router S1的配置为例。详细配置可参见配置文件。
(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
Router A2、Router F1和Router F2的配置和Router A1的配置相似,此处仅以Router A1的配置为例。详细配置可参见配置文件。
(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
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
· 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
#
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
· 《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”
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