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.
In the left-side navigation pane, choose O&M and Monitoring > Network Intelligence > Network Performance.
On the Within-Region tab, click Compute Instance Connection.
Select the region where you want to view the network latency from the Region drop-down list.
In the Average latency between compute instances section, move the pointer over a cell in the grid to view the latency data.
You can view the following information from the grid in the Average latency between compute instances section:
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 probing clusters cannot cover some regions. Therefore, you may be unable
to view the network latency in these regions.
You can click a cell in the grid of the Average latency between compute instances section 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.
In the left-side navigation pane, choose O&M and Monitoring > Network Intelligence > Network Performance.
On the Within-Region tab, click Block Storage Connection.
Select the region where you want to view the network latency from the Region drop-down list.
In the Average latency between compute instances and block storage connections section, move the pointer over a rectangle in the bar chart to view the latency data.
You can read the following information from the bar chart in the Average latency between compute instances and block storage connections section:
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
SSDs, ultra disks, PL0 enhanced SSDs, and PL1 enhanced SSDs.
Different types of block storage are supported by different zones. If latency information
about a specific type of block storage is unavailable, it indicates that the zone
does not support the type of block storage.
You can click a rectangle in the bar chart of the Average latency between compute instances and block storage connections section 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.
In the left-side navigation pane, choose O&M and Monitoring > Network Intelligence > Network Performance.
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.
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.