HP 6125G HP 6125G & 6125G/XG Blade Switches Network Management and Mon - Page 106

NQA client and server, NQA probe operation procedure, NQA configuration task list

Page 106 highlights

NQA client and server A device with NQA test groups configured is an NQA client, and the NQA client initiates NQA tests. An NQA server makes responses to probe packets destined to the specified destination address and port number. Figure 37 Relationship between the NQA client and NQA server Not all test types require the NQA server. Only the TCP, UDP echo, UDP jitter, or voice test requires both the NQA client and server, as shown in Figure 37. You can create multiple TCP or UDP listening services on the NQA server. Each listens to a specific destination address and port number. Make sure the destination IP address and port number for a listening service on the server are the same as those configured for the test group on the NQA client. Each listening service must be unique on the NQA server. NQA probe operation procedure An NQA probe operation involves the following steps: 1. The NQA client constructs probe packets for the specified type of NQA test, and sends them to the peer device. 2. Upon receiving the probe packets, the peer sends back responses with timestamps. 3. The NQA client computes the network performance and service quality parameters, such as the packet loss rate and round-trip time based on the received responses. NQA configuration task list Task Configuring the NQA server Remarks Required for TCP, UDP echo, UDP jitter, and voice tests To perform NQA tests successfully, perform the following configurations on the NQA client: 1. Enable the NQA client. 2. Create a test group and configure test parameters. The test parameters may vary with test types. 3. Configure a schedule for the NQA test group. Complete these tasks to configure NQA client: Task Enabling the NQA client Creating an NQA test group Configuring an NQA test group Configuring ICMP echo tests Configuring DHCP tests Configuring DNS tests Remarks Required. Required. Required. Use any of the approaches. 99

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NQA client and server
A device with NQA test groups configured is an NQA client, and the NQA client initiates NQA tests. An
NQA server makes responses to probe packets destined to the specified destination address and port
number.
Figure 37
Relationship between the NQA client and NQA server
Not all test types require the NQA server. Only the TCP, UDP echo, UDP jitter, or voice test requires both
the NQA client and server, as shown in
Figure 37
.
You can create multiple TCP or UDP listening services on the NQA server. Each listens to a specific
destination address and port number. Make sure the destination IP address and port number for a
listening service on the server are the same as those configured for the test group on the NQA client.
Each listening service must be unique on the NQA server.
NQA probe operation procedure
An NQA probe operation involves the following steps:
1.
The NQA client constructs probe packets for the specified type of NQA test, and sends them to the
peer device.
2.
Upon receiving the probe packets, the peer sends back responses with timestamps.
3.
The NQA client computes the network performance and service quality parameters, such as the
packet loss rate and round-trip time based on the received responses.
NQA configuration task list
Task
Remarks
Configuring the NQA server
Required for TCP, UDP echo, UDP jitter, and voice tests
To perform NQA tests successfully, perform the following configurations on the NQA client:
1.
Enable the NQA client.
2.
Create a test group and configure test parameters. The test parameters may vary with test types.
3.
Configure a schedule for the NQA test group.
Complete these tasks to configure NQA client:
Task
Remarks
Enabling the NQA client
Required.
Creating an NQA test group
Required.
Configuring an NQA test group
Configuring ICMP echo tests
Required.
Use any of the approaches.
Configuring DHCP tests
Configuring DNS tests