H3C Technologies H3C MSR 50 - Manual (Page 120)

Figure 37 Collaboration
Application modules
Detection
module
Sends the
detection result
Sends the track
entry status
Track
module
Associates with a
detection entry
Associates with
a track entry
Traffic redirection
VRRP
Static routing
Policy-based
routing
Interface backup
WLAN uplink
detection
NQA
The following describes how a static route destined for 192.168.0.88 is monitored through collaboration:
1. NQA monitors the reachability to 192.168.0.88.
2. When 192.168.0.88 becomes unreachable, NQA notifies the Track module of the change.
3. The Track module notifies the static routing module of the state change.
4. The static routing module sets the static route as invalid according to a predefined action.
For more information about collaboration, see High Availability Configuration Guide.
Threshold monitoring
Threshold monitoring enables the NQA client to display results or send trap messages to the network
management station (NMS) when the performance metrics that an NQA operation gathers violate the
specified thresholds.
Table 4 describes the relationships between performance metrics and NQA operation types.
Table 4 Performance metrics and NQA operation types
NQA operation types that can gather the metric Performance metric
Probe duration All NQA operation types except UDP jitter and voice
Number of probe failures All NQA operation types except UDP jitter and voice
Round-trip time UDP jitter and voice
Number of discarded packets UDP jitter and voice
One-way jitter (source-to-destination and
destination-to-source)
UDP jitter and voice
One-way latency (source-to-destination and
destination-to-source)
UDP jitter and voice
Calculated Planning Impairment Factor (ICPIF)
(see "
Voice
Configuring a voice operation ")
Mean Opinion Scores (MOS) (see
"
Voice
Configuring a voice operation ")
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