配置华为设备NQA UDP Jitter检测VoIP业务抖动

组网需求

如图1所示，总部和子公司之间需要跨越外部网络进行通信，DeviceA和DeviceD为总部和子公司的网络出口设备，DeviceB和DeviceC为外部网络提供商的边缘设备。

总部和子公司之间经常要通过VoIP进行电话会议，要求双向时延小于250ms，抖动小于20ms。为检测网络是否满足要求，可以使用NQA的UDP Jitter测试模拟VoIP业务检测网络。

图1 配置NQA检测VoIP业务抖动组网图

配置思路

采用如下思路配置NQA检测VoIP业务抖动：

1.DeviceD为NQA客户端，DeviceA为NQA服务器端。在DeviceD上配置UDP Jitter测试例。

2.启动测试例。

数据准备

为完成此配置例，需准备如下的数据：

?DeviceA和DeviceD的IP地址

?模拟VoIP业务的编码类型

操作步骤

1.配置NQA服务器端DeviceA。

system-view
[HUAWEI]?sysname?DeviceA
[DeviceA]?nqa?server?udpecho?10.1.1.1?4000

2.配置NQA客户端DeviceD。 a.配置UDP Jitter测试例的报文版本号。

system-view
[HUAWEI]?sysname?DeviceD
[DeviceD]?nqa?jitter?tag-version?2

b.创建UDP Jitter测试例，并配置目的地址为DeviceA的IP地址。

[DeviceD]?nqa?test-instance?admin?udpjitter
[DeviceD-nqa-admin-udpjitter]?test-type?jitter
[DeviceD-nqa-admin-udpjitter]?destination-address?ipv4?10.1.1.1
[DeviceD-nqa-admin-udpjitter]?destination-port?4000

c.配置模拟VoIP业务的编码类型。

[DeviceD-nqa-admin-udpjitter]?jitter-codec?g711a

3.立即启动测试。

[DeviceD-nqa-admin-udpjitter]?start?now

检查配置结果

验证测试结果，可以看到双向时延小于250ms，抖动小于20ms。

[DeviceD-nqa-admin-udpjitter]?display?nqa?results?test-instance?admin?udpjitter
NQA?entry(admin,?udpjitter):?test?flag?is?active,?test?type?is?JITTER
1?.?Test?1?result???The?test?is?finished
SendProbe:?1000?????????????????????????ResponseProbe:?919
Completion:?success?????????????????????RTD?over?thresholds?number:?0
OWD?over?thresholds?SD?number:?0????????OWD?over?thresholds?DS?number:?0
Min/Max/Avg/Sum?RTT:?1/408/5/4601???????RTT?square?sum:?1032361
Num?of?RTT:?919?????????????????????????Drop?operation?number:?0
Operation?sequence?errors?number:?0?????RTT?stats?errors?number:?0
System?busy?operation?number:?0?????????Operation?timeout?number:?81
Min?positive?SD:?1??????????????????????Min?positive?DS:?1
Max?positive?SD:?2??????????????????????Max?positive?DS:?9
Positive?SD?number:?67??????????????????Positive?DS?number:?70
Positive?SD?sum:?70?????????????????????Positive?DS?sum:?80
Positive?SD?square?sum:?76??????????????Positive?DS?square?sum:?156
Min?negative?SD:?1??????????????????????Min?negative?DS:?1
Max?negative?SD:?24?????????????????????Max?negative?DS:?25
Negative?SD?number:?72??????????????????Negative?DS?number:?82
Negative?SD?sum:?271????????????????????Negative?DS?sum:?287
Negative?SD?square?sum:?4849????????????Negative?DS?square?sum:?4937
Min?delay?SD:?0?????????????????????????Min?delay?DS:?0
Avg?delay?SD:?7?????????????????????????Avg?delay?DS:?0
Max?delay?SD:?203???????????????????????Max?delay?DS:?204
Delay?SD?square?sum:?254974?????????????Delay?DS?square?sum:?257072
Packet?loss?SD:?0???????????????????????Packet?loss?DS:?0
Packet?loss?unknown:?81?????????????????Average?of?jitter:?2
Average?of?jitter?SD:?2?????????????????Average?of?jitter?DS:?2
Jitter?out?value:?0.0000000?????????????Jitter?in?value:?0.0000000
Number?of?OWD:?919??????????????????????Packet?loss?ratio:?8?%
OWD?SD?sum:?1834????????????????????????OWD?DS?sum:?1848
ICPIF?value:?23?????????????????????????MOS-CQ?value:?354
TimeStamp?unit:?ms

配置脚本

?DeviceA
sysname?DeviceA
nqa?server?udpecho?10.1.1.1?4000
isis?1
network-entity?00.0000.0000.0001.00
interface?10GE1/0/3
undo?portswitch
ip?address?10.1.1.1?255.255.255.0
isis?enable?1
return

?DeviceD
sysname?DeviceD
nqa?jitter?tag-version?2
isis?1
network-entity?00.0000.0000.0002.00
interface?10GE1/0/3
undo?portswitch
ip?address?10.2.2.1?255.255.255.0
isis?enable?1
nqa?test-instance?admin?udpjitter
test-type?jitter
destination-address?ipv4?10.1.1.1
destination-port?4000
jitter-codec?g711a
start?now
return

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