You can create an alert rule for a peering connection, virtual border router (VBR), or Express Connect circuit in the CloudMonitor console. An alert is triggered when the value of a metric meets the condition of the alert rule. This topic describes how to create an alert rule in the CloudMonitor console.

Create an alert rule

  1. Log on to the CloudMonitor console.
  2. In the left-side navigation pane, choose Alerts > Alert Rules.
  3. On the Alert Rules page, click Create Alert Rule.
  4. In the Create Alert Rule panel, set the following parameters and click OK.
    ParameterDescription
    ProductSelect the type of resources that you want to monitor by using CloudMonitor. Valid values for Express Connect:
    • Express Connect - Physical Connections
    • Express Connect - VBR
    • Express Connect - Peering Connections
    Resource RangeSpecify the resources to which the alert rule is applied.
    • All Resources: If you select this option, the alert rule applies to all resources of the specified type within the current account.
    • Instances: If you select this option, the alert rule applies to the specified resources of the specified type within the current account.
    Rule NameEnter a name for the alert rule.
    Rule DescriptionSpecify the condition that triggers the alert rule. The alert is triggered when the value of a metric meets the condition of the alert rule.
    Mute ForSpecify the interval at which CloudMonitor resends alert notifications before the alert is cleared.

    An alert is triggered when the condition of an alert rule is met. CloudMonitor does not resend an alert notification if the alert is triggered again within the mute period. If the alert is not cleared after the mute period ends, CloudMonitor resends alert notifications.

    Effective PeriodSpecify the period of time during which the alert rule is effective. CloudMonitor monitors a resource and generates alerts only if the alert rule is effective.
    Notification ContactSelect one or more contact groups to which alert notifications are sent.
    Notification Methods

    The methods that are used to send alert notifications. In this example, the Email + DingTalk (Info) option is specified.

    Auto ScalingIf you turn on Auto Scaling, a specific scaling rule is triggered when an alert is generated. If you turn on Auto Scaling, you need to set the Region, ESS Group, and ESS Rule parameters.
    Log ServiceIf you turn on Log Service, the alert message is written to Log Service when an alert is generated. If you turn on Log Service, you need to set the Region, ProjectName, and Logstore parameters.

    For more information, see Getting Started.

    Email RemarkThe additional information that you want to include in the alert notification email.
    Alert CallbackSpecify an URL that can be accessed over the Internet. CloudMonitor sends a POST request over HTTP or HTTPS to push an alert notification to this URL. For more information about how to configure alert callbacks, see Use the alert callback feature to send notifications about threshold-triggered alerts.

VBR metrics

MetricDescription
BytesInFromIDCToVpcThe total amount of data transmitted from the data center to the virtual private cloud (VPC).

Unit: bit/s.

BytesOutFromVpcToIDCThe total amount of data transmitted from the VPC to the data center.

Unit: bit/s.

PkgsDropInFromIDCToVpcThe number of dropped packets when packets are sent from the data center to the VPC.

Unit: pps.

PkgsDropOutFromVpcToIDCThe number of dropped packets when packets are sent from the VPC to the data center.

Unit: pps.

PkgsInFromIDCToVpcThe number of packets sent from the data center to the VPC.

Unit: pps.

PkgsOutFromVpcToIDCThe number of packets sent from the VPC to the data center.

Unit: pps.

PkgsRateLimitDropOutFromVpcToVbrThe number of packets dropped due to throttling when packets are sent from the VPC to the VBR.

Unit: pps.

RateInFromIDCToVpcThe rate of data transfer from the data center to the VPC.

Unit: bit/s.

RateOutFromVpcToIDCThe rate of data transfer from the VPC to the data center.

Unit: bit/s.

VbrHealthyCheckLatencyThe network latency monitored by health checks between the Express Connect circuit and the VBR.

Unit: microseconds.

Note This metric is effective only when the health check feature is enabled.
  • When the Express Connect circuit is down, the network latency is 0.
  • When the Express Connect circuit is up, the network latency is higher than 0.
VbrHealthyCheckLossRateThe packet loss rate monitored by health checks between the Express Connect circuit and the VBR.
Note This metric is effective only when the health check feature is enabled.
  • When the Express Connect circuit is down, the packet loss rate is 100%.
  • When the Express Connect circuit is up, the packet loss rate is 0.

Peering connection metrics

MetricDescription
Intranet Inbound TrafficThe total amount of data received from the peer.

Unit: bit/s.

Intranet Outbound TrafficThe total amount of data sent to the peer.

Unit: bit/s.

PkgsRateLimitDropOutThe number of packets dropped due to throttling when the packets are sent to the peer.

Unit: pps.

Inbound BandwidthThe average rate of data transfer from the peer.

Unit: bit/s.

RouterInterfaceLossRateThe packet loss rate.
RouterInterfaceResponseTimeThe network latency.

Unit: milliseconds.

Outbound BandwidthThe rate of data transfer to the peer.

Unit: bit/s.

VPCHealthyCheckLossRateThe packet loss rate monitored by health checks between the Express Connect circuit and the VPC.
Note This metric is effective only when the health check feature is enabled.
  • When the Express Connect circuit is down, the packet loss rate is 100%.
  • When the Express Connect circuit is up, the packet loss rate is 0.
VpcHealthyCheckLatencyThe network latency monitored by health checks between the Express Connect circuit and the VPC.

Unit: milliseconds.

Note This metric is effective only when the health check feature is enabled.
  • When the Express Connect circuit is down, the network latency is 0.
  • When the Express Connect circuit is up, the network latency is higher than 0.

Express Connect circuit metrics

MetricDescription
PhysicalConnectionStatusThe status of the Express Connect circuit.