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 Threshold Value Alert tab, click Create Alert Rule.
  4. On the Create Alert Rule page, set the following parameters and click Confirm.
    Parameter Description
    Product The type of resources that you want to monitor by using CloudMonitor. Valid values for Express Connect:
    • ExpressConnect-PORT
    • Express Connect-VBR
    • Express Connect-Peering Connections
    Resource Range The resources to which you want to apply the alert rule.
    • All Resources: If you select this option, the alert rule applies to all resources of the specified type within the current account.
    • Instance: If you select this option, you must specify a resource that belongs the current account. In this case, the alert rule applies only to the specified resource.
    Alert Rule Enter a name for the alert rule.
    Rule Description Specify a condition for the alert rule. The alert is triggered when the value of a metric meets the condition of the alert rule.
    Mute for The interval at which CloudMonitor resends alert notifications before the alert is cleared.

    An alert is triggered when a value meets the condition of the alert rule. The system does not resend alert notifications when 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 Period The period of time during which the alert rule is effective. CloudMonitor monitors a resource and generates alerts only when the alert rule is effective.
    Notification Contact The contact group to which alert notifications are sent.
    Notification Methods

    The methods that are used to send alert notifications. You can send alert notifications only through emails and DingTalk messages.

    Auto Scaling If you select Auto Scaling, a specific scaling rule is triggered when an alert is generated. You must specify Region, ESS Group, and ESS Rule if you select this option.
    Log Service If you select Log Service, the alert message is written to Log Service after an alert is generated. You must specify Region, Project, and Logstore if you select this option.

    For more information, see Quick Start.

    Email Remark The additional information that you want to include in each alert notification sent through an email.
    HTTP CallBack The publicly-accessible webhook URL. CloudMonitor pushes alert notifications to this URL through HTTP POST requests. For more information, see Use the alert callback feature to report threshold-triggered alerts.

VBR metrics

Metric Description
BytesInFromIDCToVpc The total amount of data transmitted from the data center to the virtual private cloud (VPC).

Unit: bytes.

BytesOutFromVpcToIDC The total amount of data transmitted from the VPC to the data center.

Unit: bytes.

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

Unit: pps.

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

Unit: pps.

PkgsInFromIDCToVpc The number of packets sent from the data center to the VPC.

Unit: pps.

PkgsOutFromVpcToIDC The number of packets sent from the VPC to the data center.

Unit: pps.

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

Unit: pps.

RateInFromIDCToVpc The rate of data transfer from the data center to the VPC.

Unit: bit/s.

RateOutFromVpcToIDC The rate of data transfer from the VPC to the data center.

Unit: bit/s.

VbrHealthyCheckLatency The 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.
VbrHealthyCheckLossRate The 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

Metric Description
Intranet Inbound Traffic The total amount of data received from the peer.

Unit: bytes.

Intranet Outbound Traffic The total amount of data sent to the peer.

Unit: bytes.

PkgsRateLimitDropOut The number of packets dropped by the peer due to throttling.

Unit: pps.

Inbound Bandwidth The rate of data transfer from the peer.

Unit: bit/s.

RouterInterfaceLossRate The packet loss rate.
RouterInterfaceResponseTime The network latency.

Unit: milliseconds.

Outbound Bandwidth The rate of data transfer to the peer.

Unit: bit/s.

VPCHealthyCheckLossRate The 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.
VpcHealthyCheckLatency The 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

Metric Description
PhysicalConnectionStatus The status of the Express Connect circuit.