You can use CloudMonitor to view bandwidth information about inter-region connections and set threshold-triggered alert rules. This way, you are notified if bandwidth usage exceeds the specified threshold. You can reallocate bandwidth resources as needed to ensure service availability.
Background information
After you create an inter-region connection, you can view the bandwidth usage of the following resources and create threshold-triggered alert rules for them:
Inter-region connections
Quality of service (QoS) queues for an inter-region connection
NoteYou can view the bandwidth usage of QoS queues that are associated only with inter-region connections on Enterprise Edition transit routers.
Monitor inter-region connections
View monitoring data of inter-region connections
Log on to the CEN console.
On the Instances page, click the ID of the CEN instance that you want to manage.
Choose and click the ID of the transit router that is associated with the inter-region connection.
On the details page of the transit router, click the Cross-region Connections tab.
On the Cross-region Connections tab, find the inter-region connection that you want to manage and click the
icon in the Monitoring column. Then, select All Queues in the upper-left drop-down list of the Monitoring panel to view the bandwidth usage of the inter-region connection. The monitoring data within the last hour is displayed by default. Monitoring data is collected every 1 minute by default.
You can query monitoring data within the last 3 hours, 6 hours, 12 hours, 1 day, 7 days, and 30 days, or a custom time period. You can also set the Interval parameter to query monitoring data that is collected at a specified interval.
Each data entry is the average value within a minute.
To monitor the peak bandwidth, the system collects a bandwidth value every 10 seconds. A total of 6 bandwidth values are collected in each minute. The largest value is used as the peak bandwidth value in the minute.
NoteBandwidth monitoring data shows traffic fluctuations within seconds.
The average bandwidth rate for each minute is calculated by averaging the bandwidth values recorded in that minute.
Monitoring data can be automatically updated.
To enable the system to automatically update the monitoring data every minute, turn on Auto Refresh in the upper-left corner of the Charts tab.
Metric
Description
InterRegionPeakBandwidthRate
This monitoring metric consists of four items. The system displays the following information for two connected regions, such as Region A and Region B:
The peak bandwidth of data transmission from Region A to Region B. Unit: bit/s.
The peak bandwidth of data transmission from Region B to Region A. Unit: bit/s.
The average bandwidth of data transmission from Region A to Region B. Unit: bit/s.
The average bandwidth of data transmission from Region B to Region A. Unit: bit/s.
InterRegionPeakBandwidthUtilization
This monitoring metric consists of four items. The system displays the following information for two connected regions, such as Region A and Region B:
The percentage of the peak bandwidth of data transmission from Region A to Region B.
The percentage of the peak bandwidth of data transmission from Region B to Region A.
The percentage of the average bandwidth of data transmission from Region A to Region B.
The percentage of the average bandwidth of data transmission from Region B to Region A.
InterRegionRateLimitDropPackets
This monitoring metric consists of two items. The system displays the following information for two connected regions, such as Region A and Region B:
The loss rate of packets transmitted from Region A to Region B. Unit: pps.
The loss rate of packets transmitted from Region B to Region A. Unit: pps.
LatencyByConnectionRegion
The network latency between the regions. Unit: milliseconds.
You can view network latency of inter-region connections on Enterprise Edition transit routers that use Platinum or Gold lines in the Network Intelligence Service (NIS) console. For more information, see View network performance between regions.
NoteYou can also view monitoring data of inter-region connections on the Charts tab. For more information, see View the monitoring data of inter-region connections.
The metrics InternetOutRateByConnectionRegionA/B, InternetOutRatePercentByConnectionRegionA/B, and InternetOutDropRateByConnectionRegionA/B are deprecated.
Create threshold-based alert rules for an inter-region connection
Log on to the CEN console.
On the Instances page, click the ID of the CEN instance that you want to manage.
Choose and click the ID of the transit router that is associated with the inter-region connection.
On the details page of the transit router, click the Cross-region Connections tab.
On the Cross-region Connections tab, find the inter-region connection and click Set Alert in the Monitoring column. You are redirected to the Cloud Monitor console.
In the Configure Rule Description panel, click Cancel.
In the Create Alert Rule panel, select CEN-TR from the Product drop-down list, select resources from the Associated Resources drop-down list, configure the other parameters, and then click Confirm.
The following table describes the parameters that are related to this topic. For more information about other parameters, see Create an alert rule.
Click +Create Alert Rule, set the following parameters in the Add Rule Description panel, and then click OK.
Parameter
Description
Alert Rule
Enter a name for the alert rule.
Metric Type
Select a metric type for the alert rule. In this example, Single Metric is selected. For more information about how to configure multiple metrics and dynamic thresholds, see Create an alert template.
Single Metric
Multiple Metrics
Dynamic Threshold
Metric
Select a metric for the alert rule.
InterRegionAverageBandwidthRate: the average outbound bandwidth. Unit: bit/s.
InterRegionAverageBandwidthUtilization: the percentage of the average outbound bandwidth to the maximum bandwidth of the inter-region connection.
InterRegionPeakBandwidthRate: the peak outbound bandwidth. Unit: bit/s.
InterRegionPeakBandwidthUtilization: the percentage of the peak outbound bandwidth to the maximum bandwidth of the inter-region connection.
InterRegionRateLimitDropPackets: the rate of packets dropped due to throttling between the regions. Unit: pps.
NoteAlert rules are not supported by the metric LatencyByConnectionRegion.
The metrics InternetOutRateByConnectionRegionA/B,InternetOutRatePercentByConnectionRegionA/B, and InternetOutDropRateByConnectionRegionA/B are deprecated.
Threshold and Alert Level
Set the alert conditions, alert threshold, and alert level of the alert rule.
Chart Preview
The monitoring data of the selected metric is displayed in the chart.
Monitor QoS queues
View the bandwidth usage of QoS queues
Log on to the CEN console.
On the Instances page, click the ID of the CEN instance that you want to manage.
Choose , find the transit router that is associated with the inter-region connection, and then click the ID of the transit router.
On the details page of the transit router, click the Cross-region Connections tab.
On the Cross-region Connections tab, find the inter-region connection that you want to manage and click the
icon in the Monitoring column. Then, select Default Queue or a specific queue from the upper-left drop-down list in the Monitoring panel to view the monitoring data of the queue. The monitoring data within the last hour is displayed by default. Monitoring data is collected every 1 minute by default.
You can query monitoring data within the last 3 hours, 6 hours, 12 hours, 1 day, 7 days, and 30 days, or a custom time period. You can also set the Interval parameter to query monitoring data that is collected at a specified interval.
Each data entry is the average value within a minute.
To monitor the peak bandwidth, the system collects a bandwidth value every 10 seconds. A total of 6 bandwidth values are collected in each minute. The largest value is used as the peak bandwidth value in the minute.
NoteBandwidth monitoring data shows traffic fluctuations within seconds.
The average bandwidth rate for each minute is calculated by averaging the bandwidth values recorded in that minute.
Monitoring data can be automatically updated.
To enable the system to automatically update the monitoring data every minute, turn on Auto Refresh in the upper-left corner of the Charts tab.
Metric
Description
InterRegionQosQueuePeakBandwidthRate
This monitoring metric consists of two items:
Rate of Outbound Bandwidth: the peak bandwidth of the queue when the local transit router transmits data to the peer transit router. Unit: bit/s.
Average Rate of Outbound Bandwidth: the average bandwidth of the queue when the local transit router transmits data to the peer transit router. Unit: bit/s.
InterRegionQosQueuePeakBandwidthUtilization
This monitoring metric consists of two items:
Usage of Outbound Bandwidth: the percentage of the peak bandwidth of the queue to the bandwidth of the inter-region connection when the local transit router transmits data to the peer transit router.
Average Usage of Outbound Bandwidth: the percentage of the average bandwidth of the queue to the bandwidth of the inter-region connection when the local transit router transmits data to the peer transit router.
InterRegionQosQueueRateLimitDropPackets
The packet loss rate of the queue when the local transit router transmits data to the peer transit router. Unit: pps.
LatencyByConnectionRegion
The average network latency of the queue. Unit: milliseconds.
Create a threshold-triggered alert rule for a QoS queue
Log on to the CEN console.
On the Instances page, click the ID of the CEN instance that you want to manage.
Choose and click the ID of the transit router that is associated with the inter-region connection.
On the details page of the transit router, click the Cross-region Connections tab.
On the Cross-region Connections tab, find the inter-region connection that you want to manage and click Set Alert in the Monitoring column. You are redirected to the CloudMonitor console.
In the Configure Rule Description panel click Cancel.
In the Create Alert Rule panel, select CEN-TR from the Product drop-down list, select resources from the Associated Resources drop-down list, configure the other parameters, and then click Confirm.
The following table describes the parameters that are related to this topic. For more information about other parameters, see Create an alert rule.
Click +Create Alert Rule, set the following parameters in the Add Rule Description panel, and then click OK.
Parameter
Description
Alert Rule
Enter a name for the alert rule.
Metric Type
Select a metric type for the alert rule. In this example, Single Metric is selected. For more information about how to configure multiple metrics and dynamic thresholds, see Create an alert template.
Single Metric
Multiple Metrics
Dynamic Threshold
Metric
Select a metric for the alert rule.
InterRegionQosQueuePeakBandwidthRate: the peak bandwidth of the queue when the local transit router transmits data to the peer transit router. Unit: bit/s.
InterRegionQosQueuePeakBandwidthUtilization: the percentage of the peak bandwidth of the queue to the maximum bandwidth of the inter-region connection when the local transit router transmits data to the peer transit router.
InterRegionQosQueueAverageBandwidthRate: the average bandwidth of the queue when the local transit router transmits data to the peer transit router. Unit: bit/s.
InterRegionQosQueueAverageBandwidthUtilization: the percentage of the average bandwidth of the queue to the maximum bandwidth of the inter-region connection when the local transit router transmits data to the peer transit router.
InterRegionQosQueueRateLimitDropPackets: the packet loss rate due to throttling on the queue when the local transit router transmits data to the peer transit router. Unit: pps.
NoteThe network latency of the queue is the same as that of the inter-region connection. Alert rules are not supported by the metric LatencyByConnectionRegion.
Threshold and Alert Level
Set the alert conditions, alert threshold, and alert level of the alert rule.
Chart Preview
The monitoring data of the selected metric is displayed in the chart.