Bandwith Test on vManage

[ValentinNowak]

Hello,

I would like to test the bandwidth between different locations. Under the item Troubleshooting there is the possibility to do a speed test.
Is this speed test meaningful?

At two locations I know that I have a synchronous 1000Mbps line. However, the measurements only show a speed of approx. 200 Mbps.

Are there any limitations to the speed test?
Is there any other way to make a reliable measurement via vManage.

Thank you very much,
Valentin

[bigevilbeard]

Maximum bandwidth or speed which vManage can detect is up to 250 Mbps. You can test the speed via CLI on the vEdge or cEdge to get the actual speed getting on the WAN circuit.

[ValentinNowak]

Hi,

thanks for your quick reply.

Do you have a tutorial on how to do such a test?

I have found the following commands:
tools iperf vpn 0 options "-c IP address -u -b bandwidth".

But this command works only on the Viptela devices.

The output is:

SDW# tools iperf vpn 0 options "-c Remote-IP -u -b 1000m"
iperf -c Remote-IP -u -b 1000m in VPN 0
------------------------------------------------------------
Client connecting to Remote-IP, UDP port 5001
Sending 1470 byte datagrams, IPG target: 11.76 us (kalman adjust)
UDP buffer size: 2.50 MByte (default)
------------------------------------------------------------
[ 4] local Local-IP port 48430 connected with Remote-IP port 5001
[ 4] WARNING: did not receive ack of last datagram after 10 tries.
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.0 sec 593 MBytes 498 Mbits/sec
[ 4] Sent 423287 datagrams

But if i do the same command to for example 8.8.8.8:

SDW# tools iperf vpn 0 options "-c 8.8.8.8 -u -b 1000m"
iperf -c 8.8.8.8 -u -b 1000m in VPN 0
------------------------------------------------------------
Client connecting to 8.8.8.8, UDP port 5001
Sending 1470 byte datagrams, IPG target: 11.76 us (kalman adjust)
UDP buffer size: 2.50 MByte (default)
------------------------------------------------------------
[ 4] local Local-IP port 39967 connected with 8.8.8.8 port 5001
[ 4] WARNING: did not receive ack of last datagram after 10 tries.
[ ID] Interval Transfer Bandwidth
[ 4] 0.0-10.0 sec 596 MBytes 500 Mbits/sec
[ 4] Sent 425031 datagrams

Thanks,
Valentin

[bigevilbeard]

Only one i know of https://www.cisco.com/c/en/us/td/docs/routers/sdwan/command/sdwan-cr-book/operational-cmd.html#r_tools_iperf_11297.xml I read in another thread it is not supported on cEdges, it is only natively supported on vEdges as they run IPerf in the vshell.

[ValentinNowak]

Hi,

I had opened a TacCase for this purpose.
It does not seem to be possible to do this with Viptela's own resources.
Then I will have to look for other tools.

Thanks again

[dijix1990 · Accepted solution]

Only through iperf client on a laptop or pc between two sites, but, if you have vEdge routers on these sites you can use iperf client on the CLI. In the CLI I tested bandwidth between two sites for getting result I used vBond on the two sites and I could get 2Gbps

[svemulap@cisco.com]

per core on vEdge limits the iPerf throughput to ~250Mbps.