This topic describes how to use the network performance dashboard to view network latency in different regions.

Statements

  • The network latency and other performance data provided by the network performance feature are for your reference only. Alibaba Cloud provides no commitment or guarantee for the accuracy of data. The actual network performance shall prevail.
  • The network latency and other performance data provided by the network performance feature are based on a detection cluster built by Alibaba Cloud. The staging machines deployed in the detection cluster regularly send and receive probe packets, and then send the statistics to the network performance feature. The staging machines deployed in the detection cluster are isolated from your resources. Therefore, your resources remain unaffected. The data displayed by the network performance feature is irrelevant to the resources that you deploy on Alibaba Cloud.

Operations

View network performance in a region

Compute instance connections

  1. Log on to the VPC console.
  2. In the left-side navigation pane, choose Network Intelligence > Network Performance.
  3. On the Within-Region tab, click Compute Instance Connection.
  4. Select the region where you want to view the network latency from the Region drop-down list.
  5. Move the pointer over a cell in the grid that shows Average latency between compute instances to view the latency data.
    You can view the following information in the grid that shows Average latency between compute instances:
    • The x-axis and y-axis display the zones of the region that you selected.
    • A cell in the grid shows the average latency that a compute instance in the zone on the x-axis takes to connect to the compute instance in the zone on the y-axis. When the zones on the x-axis and the y-axis are the same, the cell shows the average latency that a compute instance takes to connect to another compute instance in the region that you selected.
    • Alibaba Cloud detection clusters cannot cover some regions. Therefore, you may be unable to view the network latency in these regions.
  6. You can click a cell in the grid that shows Average latency between compute instances to view the average latency in the line chart that appears.
    You can view the average latency within 1 hour, 3 hours, 1 day, 7 days, and 30 days. You can also specify a time range within 30 days to view the average latency in that period.

Block storage connections

  1. Log on to the VPC console.
  2. In the left-side navigation pane, choose Network Intelligence > Network Performance.
  3. On the Within-Region tab, click Block Storage Connection.
  4. Select the region where you want to view the network latency from the Region drop-down list.
  5. Move the pointer over a rectangle in the bar chart that shows Average latency between compute instances and block storage connections to view the latency data.
    You can view the following information in the bar chart that shows Average latency between compute instances and block storage connections:
    • The x-axis displays the zones of the region that you selected.
    • The y-axis displays the latency data.
    • Each rectangle is displayed in a different color, which represents a different type of block storage in the region that you selected. When you move the pointer over a rectangle, you can view the real-time network latency that the specified block storage takes to connect to the compute instance in the region that you selected.
      • You can view the network latency of the following types of block storage: Standard SSD, Ultra disk, Enhanced SSD PL0, and Enhanced SSD PL1.
      • Different types of block storage are supported in different zones. If no network latency data is available for a block storage type in a zone, this indicates that the zone does not support this block storage type.
  6. You can click a rectangle in the bar chart that shows Average latency between compute instances and block storage connections to view the average latency in the line chart that appears.
    You can view the average latency within 1 hour, 3 hours, 1 day, 7 days, and 30 days. You can also specify a time range within 30 days to view the average latency in that period.

View network performance in different regions

  1. Log on to the VPC console.
  2. In the left-side navigation pane, choose Network Intelligence > Network Performance.
  3. On the Cross-Region tab, select the source and destination regions from the Source Region and Destination Region drop-down lists separately.
    By default, the real-time average latency among the US (Virginia), US (Silicon Valley), Australia (Sydney) and China (Hong Kong) regions is displayed.
  4. You can click a link on the page to view the average latency in the line chart that appears.
    You can view the average latency within 1 hour, 3 hours, 1 day, 7 days, and 30 days. You can also specify a time range within 30 days to view the average latency in that period.