H3C Technologies H3C Intelligent Management Center - Manual (Page 102)

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Figure 31 Network diagram
Requirement analysis
The main factors that can affect the voice call quality include the following items:
• Voice performance of key links, such as voice MOS, and unreachable rate.
• Response time and unreachable rate of Switch A, Switch B, the VCX server, and the voice
gateway.
To identify the critical factor that affects the network service, you can configure an SLA as described
in Table 18 that monitors and measures the KQI on the target objects.
Table 18 SLA design
Monitored object Object type System-defined KQI KQI data source
• Switch A
• Switch B
• Voice gateway
• VCX server
Key device
• Device unreachable
• Device response time
Performance
Management
Link between the following
devices:
• Switch A and Switch B
• Switch A and the voice
gateway
• Switch B and the voice
gateway
Key link
• Voice ICPIF
• Voice MOS
• Unreachable rate
• Error rate
• One way average delay
• Packet loss rate
• Jitter
• Average RTT
NQA instance module
Configuration procedures
Make sure you have the administrator access to perform the following configuration tasks.
Importing the key devices to the IMC Enterprise and Standard platform
Import Switch A, Switch B, the voice gateway, and the VCX server to the IMC Enterprise and Standard
platform. For more information, see HP IMC Enterprise and Standard Platform Administrator Guide.