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- Table of Contents
-
- H3C S9500 Operation Manual-Release1648[v1.24]-08 System Volume
- 00-1Cover
- 01-Command Line Interface Configuration
- 02-Login and User Interface Configuration
- 03-FTP and TFTP Configuration
- 04-HA Configuration
- 05-NQA Configuration
- 06-NetStream Configuration
- 07-NTP Configuration
- 08-RMON Configuration
- 09-SNMP Configuration
- 10-Packet Statistics Accounting Configuration
- 11-Device Management Configuration
- 12-Configuration File Management Configuration
- 13-File System Management Configuration
- 14-Cluster Management Configuration
- 15-System Maintenance and Debugging Configuration
- 16-Information Center Configuration
- 17-PoE Configuration
- 18-Clock Module Configuration
- 19-ACSEI Server Configuration
- 20-OAP Module Configuration
- Related Documents
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| Title | Size | Download |
|---|---|---|
| 05-NQA Configuration | 49.97 KB |
1.2.1 Configuration Prerequisites
1.2.3 NQA Configuration Example
1.3 Displaying and Maintaining NQA
Chapter 1 NQA Configuration
When configuring NQA, go to these sections for information you are interested in:
l Displaying and Maintaining NQA
1.1 Introduction to NQA
A network quality analyzer (NQA), which is an enhancement of the ping function, is used to test the performance of various protocols operating in a network. The ping function can only use ICMP to test the round trip travel time of data packets between the local endpoint and the specified destination endpoint by command lines, While NQA on the S9500 series switches can finish not only the above functions, but also the ICMP function and the MIB operation corresponding to ICMP. Other functions such as DLSw, DHCP, FTP, HTTP, and SNMP are not implemented yet.
The ICMP function test of NQA has the following features:
The NQA function is similar with the ping function. But NQA has more parameters and can execute multiple tests simultaneously and automatically, and collect and save test results.
The NQA function configures various parameters needed by the test through the network management tool or the command line. Then you can enable the test, and view the test result. After the test, use the display nqa results command to display the test result.
1.2 NQA Configuration
The ICMP function test of NQA includes the following configuration:
l Enable the NQA client function.
l Configure the maximum number of the test tasks that can be performed simultaneously.
l Set the NQA test group.
l Set various test parameters.
l Enable the test.
l Display the test result.
1.2.1 Configuration Prerequisites
The ICMP function of NQA needs no special prerequisite; however, note the following two points during the configuration:
l Enabling the NQA client function is the prerequisite of all tests.
l To execute the test, you must set the NQA test group, configure the parameters, and then enable the test.
1.2.2 Configuring NQA
Follow these steps to configure NQA:
|
To do… |
Use the command… |
Remarks |
|
Enter system view |
system-view |
— |
|
Enable the client function of the NQA |
nqa-agent enable |
Required Disabled by default |
|
Configure the maximum number of the test tasks performed simultaneously |
nqa-agent max-requests max-number |
Optional 5 by default |
|
Set the NQA test group, enter NQA test group view |
nqa administrator-name test-tag |
Required By default, the system creates no test group. When a test group is set, the system automatically enter the NQA test group view. |
|
Set the test type |
test-type type |
At present, ICMP type is the only choice. By default, the test type is ICMP type. |
|
Set the destination address to be tested |
destination-ip ip-address |
Required By default, no destination address is set. |
|
Set the description information of the test group |
description text |
Optional By default, there is no description information of the test group. |
|
Set the timeout time for the test operation |
timeout time |
Optional Three seconds by default |
|
Set the number of probe packets to be sent |
count times |
Optional By default, one probe packet is sent. |
|
Set the life time for NQA ICMP test packet, that is, the maximum number of hops that a test packet can pass in the network |
ttl number |
Optional 20 by default |
|
Set the ToS value in the NQA test packet header |
tos value |
Optional By default, the ToS value in the NQA test packet header is 0, that is , no special service is specified |
|
Set the filler data size of the test packet |
datasize size |
Optional 56 bytes (including no protocol header) by default |
|
Set the filler data of the test packet |
datafill text |
Optional By default, no filler data in the test packet is set. |
|
Set the name of the VPN instance |
vpn-instance name |
Optional By default, no name of the VPN instance is set. |
|
Set the source IP address of this test |
source-ip ip-address |
Optional By default, no source IP address is configured. The system uses the IP address of the source interface as the source IP address. |
|
Set the source interface |
source-interface interface-type interface-number |
Optional By default, no source interface is configured. |
|
Assume the connection mode between the destination address and the equipment enabling the test as direct connection mode |
sendpacket passroute |
Optional By default, there is no such assumption. |
|
Set the number of the test results that can be stored in the history record |
history-records number |
Optional 50 by default |
|
Set the condition (probe) of sending Trap information to the network management system |
send-trap { all | { probefailure | testcomplete | testfailure } * } |
Optional By default, no Trap information is sent to the network management system. |
|
Set the times of constant probe failures after which the Trap information is sent to the network management system |
probe-failtimes times |
Optional By default, the system sends the Trap information to the network management system after one probe failure. |
|
Set the Trap information filter condition (test) |
test-failtimes times |
Optional By default, NQA sends the Tap information to the network management system after one NQA test fails. |
|
Set the automatic test interval |
frequency interval |
Optional The default interval time is 0, that is, no automatic test is performed; Configure the interval>0, then the system performs one automatic test every configured interval time. |
|
Enable the test |
test-enable |
Required Ignore this configuration if you choose the frequency interval command to enable the automatic test. |
|
Display the test result |
display nqa [ results | history ] [ administrator-name test-tag ] |
Available in any view |
Caution:
l When the system is testing, parameters that are configured in the NQA test group view cannot be changed except the simple description of the operations and the condition of sending the Trap information to the network management system.
l You can use the undo test-enable command to stop the test at any time. And you can stop the test by means of disabling the NQA client or deleting the test group during the test.
l If you assume the connection mode as direct mode but set a TTL value at the same time, this TTL value does not take effect.
l Neither the source IP address nor the destination IP address can be set to 0.0.0.0 or 255.255.255.255. Source address can only be the Layer 3 interface configured with IP address.
l All of the parameters and test results can be displayed or set by MIB with the network management tool.
1.2.3 NQA Configuration Example
I. Network requirements
l Configure the simple NQA test. The type is ICMP.
l The destination address is 192.168.80.80. It is the address of a PC and accessible to the switch which performs the NQA test.
II. Network diagram
Figure 1-1 Network diagram for NQA configuration
III. Configuration procedure
1) Enable the NQA client
# Enable the NQA client.
<H3C>system-view
System View: return to User View with Ctrl+Z.
[H3C] nqa-agent enable
2) Set the NQA test group
# Create an NQA test group. Its name is administrator and its test tag is ICMP.
[H3C] nqa administrator icmp
3) Set the parameters of the test group
# Configure the test type as ICMP.
[H3C-nqa-administrator-icmp] test-type icmp
# Configure the destination IP to 192.168.80.80.
[H3C-nqa-administrator-icmp] destination-ip 192.168.80.80
# Configure the test times to 5.
[H3C-nqa-administrator-icmp] count 5
4) Execute the test
# Execute one test.
[H3C-nqa-administrator-icmp] test-enable
5) Display the test results
# Display the results of this test in this test group.
<H3C> display nqa results administrator icmp
NQA entry(admin administrator, tag icmp) test result:
Destination ip address:192.168.80.80
Vpn-instance: NULL
Send operation times: 5 Receive response times: 5
Min/Max/Average Round Trip Time: 21/33/25
Square-Sum of Round Trip Time: 3557
Last complete test time: 2005-12-8 11:22:33.4
Extended results:
Packet lost in test: 0%
Disconnect operation number:0 Operation timeout number:0
System busy operation number:0 Connection fail number:0
Operation sequence errors:0 Drop operation number:0
Other operation errors:0
1.3 Displaying and Maintaining NQA
|
To do… |
Use the command… |
Remarks |
|
Display the configuration information |
display current-configuration or display this in NQA test group view |
Available in any view |
|
Display the test results |
display nqa { results | history } [ administrator-name test-tag ] |
Available in any view |
