Configuring Nqa; Nqa Benefits - HP 5820X Switch Configuration Manual

Configuring NQA

NQA can perform various types of tests and collect network performance and service quality parameters
such as delay jitter, time for establishing a TCP connection, time for establishing an FTP connection, and
file transfer rate.
With the NQA test results, you can diagnose and locate network faults, know network performance in
time and take proper actions.

NQA benefits

Supporting multiple test types
Ping can only use the ICMP to test the reachability of the destination host and the round-trip time. As an
enhancement to Ping, NQA provides more test types and functions.
NQA supports 1 1 test types: ICMP echo, DHCP, DNS, FTP, HTTP, UDP jitter, SNMP, TCP, UDP echo, voice
and DLSw.
NQA enables the client to send probe packets of different test types to detect the protocol availability and
response time of the peer. The test result helps you understand network performance.
Supporting the collaboration function
Collaboration is implemented by establishing reaction entries to monitor the detection results of NQA
probes. If the number of consecutive probe failures reaches a limit, NQA informs the track module of the
detection result, and the track module triggers other application modules to take predefined.
Figure 5 Implement collaboration
The collaboration comprises the following parts: the application modules, the track module, and the
detection modules.
A detection module monitors specific objects, such as the link status, and network performance, and
•
informs the track module of detection results.
Upon the detection results, the track module changes the status of the track entry and informs the
•
associated application module. The track module works between the application modules and the
detection modules. It hides the differences among detection modules from application modules.
• The application module takes actions when the tracked object changes its state.
The following describes how a static route is monitored through collaboration.
NQA monitors the reachability to 192.168.0.88.
1.
When 192.168.0.88 becomes unreachable, NQA notifies it to the track module.
2.
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