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This chapter includes information on how to configure the speed test on the SD-Routing devices. It contains the following sections:
Internet speed test: Cisco SD-WAN Manager tests the network speed. Cisco SD-WAN Manager designates the device as the client site and the iperf3 server as the remote site. You can specify the IP address (or domain name) and port number for an iperf3 server.
The speed tests measure upload speed from the source device to the selected or specified iperf3 server, and measure download speed from the iperf3 server to the source device.
Speed testing requires the device host name of the target device. Also, you must enable Data Stream. To enable data stream go to Settings page and choosing Settings > Data Stream.
To run a speed test, perform the following:
From the Cisco SD-WAN Manager menu, choose .
To choose a device, click the device name in the Hostname column.
Click Troubleshooting in the left pane.
In the Connectivity area, click Speed Test.
Specify the following:
Source Interface: From the drop-down list, choose the source interface on the local device.
Destination Device: From the drop-down list, choose Internet.
iPerf3 Server: (Optional) Enter the domain name or iPerf3 server’s IP address in IPv4 format.
Server Port Range: (Optional) Enter the server port or a port range. For example, 5201, 5210, or 5201-5205.
Click Start Test.
The speed test result is displayed.
After you successfully execute the speed test, the following details are displayed on the Speed Test page:
The middle part of the right pane reports the results of the speed test.
The clock reports the recently obtained circuit speed results.
When measuring the uploading speed, packets are sent from the source device to the iPerf3 server, and the source device receives acknowledgments from the destination.
When measuring the downloading speed, packets are sent from the iPerf3 server to the source device, and the destination device receives acknowledgments from the source.
The following table provides troubleshooting information for speed testing:
|
Error Information |
Possible Root Cause |
|---|---|
|
Failed to resolve iperf server address |
DNS server is not configured at edge device or is unable to resolve the iperf server from the configured DNS server at edge device. |
|
Speed test servers not reachable |
The speed test server ping failed. The edge device cannot reach the server IP. |
|
iPerf client: unable to connect stream: Resource temporarily unavailable |
Unable to connect to the speed test server. Access may be blocked by access-control list (ACL) permissions. |
|
iPerf client: unable to connect to server |
The iPerf3 server is not providing the test service at the user-specified port or default port 5201. |
|
Device Error: Speed test in progress |
The selected source or destination device is performing a speed test and cannot start a new one. |
|
Device error: Failed to read server configuration |
The data stream configuration is missing. Workaround: Running a CLI command at the SD-Routing device and clearing the SD-Rounting control connections can fix the issue. |
|
Speed test session has timed out |
The speed test has not successfully completed in 180 seconds. This might be because the SD-Rouring device has lost the control connection to Cisco SD-WAN Manager during the speed testing. |
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to https://cfnng.cisco.com/. An account on Cisco.com is not required.
|
Feature Name |
Release Information |
Description |
|---|---|---|
|
Speed Test |
Cisco IOS XE 17.13.1 |
Cisco SD-WAN Manager allows you to measure the network speed and available bandwidth between a device and an iPerf3 server. The speed tests measure upload and download speed from the source device to the destination device. |
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