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Cloud Enterprise Network:View the monitoring data of CEN resources

Last Updated:Sep 15, 2023

Cloud Enterprise Network (CEN) provides a monitoring page where you can view information about resource usage. This topic describes how to view the monitoring data of transit routers, bandwidth plans, inter-region connections, and Express Connect circuits associated with virtual border routers (VBRs) and the data transfer information about connections between network instances and transit routers in the CEN console.

Background information

  • The Charts tab displays the monitoring data within the last hour by default. Each data entry is the average value within a minute.

    To monitor the peak bandwidth, the system collects a bandwidth value every 6 seconds. A total of 10 bandwidth values are collected in each minute. The largest value is used as the peak bandwidth value in the minute. Bandwidth monitoring data shows traffic fluctuations within seconds.

    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.

  • Monitoring data can be automatically updated.

    On the top of the Charts tab, turn on Auto Refresh to enable the system to automatically update the monitoring data every minute.

Limits

  • You can view the monitoring data only of Enterprise Edition transit routers.

  • You can view the monitoring data only of connections between network instances and Enterprise Edition transit routers.

View the monitoring data of transit routers

  1. Log on to the CEN console.
  2. On the Instances page, click the ID of the CEN instance that you want to manage.
  3. On the details page of the CEN instance, choose Charts > Transit Router Monitoring.

  4. On the Transit Router Monitoring tab, select a transit router and view the monitoring data.

    Metric

    Description

    Inbound Traffic Rate

    The data transfer rate from the network instance to the transit router. Unit: bit/s.

    Outbound Traffic Rate

    The data transfer rate from the transit router to the network instance. Unit: bit/s.

    Inbound Packet Rate

    The packet forwarding rate from the network instance to the transit router. Unit: pps.

    Outbound Packet Rate

    The packet forwarding rate from the transit router to the network instance. Unit: pps.

    Inbound Bytes

    The byte transfer rate from the network instance to the transit router. Unit: bytes.

    Outbound Bytes

    The byte transfer rate from the transit router to the network instance. Unit: bytes.

    Inbound Packets

    The number of packets that the transit router receives from the network instance. Unit: packets.

    Outbound Packets

    The number of packets that the transit router sends to the network instance. Unit: packets.

    Note

    You can view the monitoring data of transit routers on the Charts or Transit Router tab. For more information, see Monitor transit routers.

View the monitoring data of network instance connections

  1. Log on to the CEN console.
  2. On the Instances page, click the ID of the CEN instance that you want to manage.
  3. On the details page of the CEN instance, choose Charts > Connected Instance Monitoring.

  4. On the Connected Instance Monitoring tab, select the region of the transit router and select a network instance that is associated with the transit router.

    Metric

    Description

    AttachmentOutRate

    The data transfer rate from the transit router to the network instance. Unit: bit/s.

    AttachmentInRate

    The data transfer rate from the network instance to the transit router. Unit: bit/s.

    AttachmentBlackHoleDropBytes

    The rate at which packets from the network instance are dropped due to blackhole routing. Unit: bit/s.

View monitoring information about cross-region connections

  1. Log on to the CEN console.
  2. On the Instances page, click the ID of the CEN instance that you want to manage.
  3. On the details page of the CEN instance, choose Charts > Cross-region Bandwidth Monitoring.

  4. On the Cross-region Bandwidth Monitoring tab, select an inter-region connection and view the bandwidth monitoring data.

    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.

    Note
    • You can view the bandwidth monitoring data of inter-region connections on the Charts or Cross-region Connections tab. For more information, see Monitor inter-region connections.

    • If you have configured a quality of service (QoS) policy for the inter-region connection, you can view the monitoring data of the QoS queues on the Cross-region Connections tab. For more information, see Monitor inter-region connections.

    • The metrics InternetOutRateByConnectionRegionA/B, InternetOutRatePercentByConnectionRegionA/B, and InternetOutDropRateByConnectionRegionA/B are deprecated.

View the monitoring data of bandwidth plans

  1. Log on to the CEN console.
  2. On the Instances page, click the ID of the CEN instance that you want to manage.
  3. On the details page of the CEN instance, choose Charts > Bandwidth Plan Usage Monitoring.

  4. On the Bandwidth Plan Usage Monitoring tab, select a bandwidth plan and view the monitoring data.

    Metric

    Description

    CENBandwidthPackagePeakBandwidthRate

    This monitoring metric consists of two items:

    • Rate of Outbound Bandwidth: the peak bandwidth of the bandwidth plan. Unit: bit/s.

    • Average Rate of Outbound Bandwidth: the average bandwidth of the bandwidth plan. Unit: bit/s.

    CENBandwidthPackagePeakBandwidthUtilization

    This monitoring metric consists of two items:

    • Usage of Outbound Bandwidth: the percentage of the peak bandwidth to the maximum bandwidth of the bandwidth plan.

    • Average Usage of Outbound Bandwidth: the percentage of the average bandwidth to the maximum bandwidth of the bandwidth plan.

    Note
    • On the Charts tab, you can view the monitoring data of only bandwidth plans that are associated with the current CEN instance. For more information about how to view monitoring information about other bandwidth plans, see Monitor a bandwidth plan.

    • The metrics InternetOutRateByConnectionArea and InternetOutRatePercentByConnectionArea are deprecated.

View the monitoring data of Express Connect circuits

  1. Log on to the CEN console.
  2. On the Instances page, click the ID of the CEN instance that you want to manage.
  3. On the details page of the CEN instance, choose Charts > VBR Health Check.

  4. On the VBR Health Check tab, select a VBR that is associated with an Express Connect circuit to view the monitoring data of the Express Connect circuit.

    Metric

    Description

    VBRInternetOutRate

    The bandwidth that is used to transmit data from Alibaba Cloud to the data center. Unit: bit/s.

    VBRInternetInRate

    The bandwidth that is used to transmit data from the data center to Alibaba Cloud. Unit: bit/s.

    VBRHealthyCheckLatency

    The network latency between Alibaba Cloud and the data center. Unit: milliseconds.

    VBRHealthyCheckLossRate

    The rate at which packets between Alibaba Cloud and the data center are dropped.

    Important
    • By default, you can view information about outbound bandwidth (VBRInternetOutRate) and inbound bandwidth (VBRInternetInRate) of an Express Connect circuit on the Charts tab. If you want to view information about latency (VBRHealthyCheckLatency) and packet loss rate (VBRHealthyCheckLossRate) of the Express Connect circuit, configure health checks for the Express Connect circuit. For more information, see Configure health checks.

    • You can view the monitoring data of an Express Connect circuit on the Charts tab or the Health Check page. For more information, see Monitor Express Connect circuits.

References

To avoid business interruptions caused by insufficient resources, you can create alert rules in the CloudMonitor console for transit routers, network instance connections, bandwidth plans, inter-region connections, and Express Connect circuits. For more information, see the following topics: