Re: Question about IO Visor Tunnel monitor

Brenden Blanco <bblanco@...>

Hello Jungi Lee,

To my knowledge, you are the only person to adapt that code to OpenStack, though there is no reason that it should not work. The first place to start would be to modify the file to dump the entries in the stats table to stdout instead of to the file. That will give visibility into whether the table is updating or not. The code in and should not be used at all, since they just exist to set up the vxlan device for the test environment. Just and monitor.c are needed.

If you care to share a snippet of the modified, and any output that running that file gives, maybe we could help further.


On Tue, Mar 22, 2016 at 11:07 PM, "이준기" <iovisor-dev@...> wrote:

To IO Visor devs,


Hello, I’m Jungi Lee, student who is studying about OpenStack Cloud.

I’m operating multi-site OpenStack cloud and I thought that I need to monitor the connection between sites.

So I tried to find a way to monitor vxlan tunnels which are created and held by OpenStack neutron,

I found IO Visor BCC’s example code, “Tunnel monitor”. (

I set up the IO Visor BCC environment and tested with uploaded tunnel monitor codes successfully.

Then I tried to change the codes with my OpenStack vxlan tunnel settings to capture and show the status of vxlan tunnels, but it doesn’t work.

None of vxlan tunnels are showed by node.js based web page.

For this reason, I want to get some help if there are anyone who is using IO Visor to monitor a status of vxlan tunnels with OpenStack cloud.

Thank you for your reading.


Best wishes,

Jungi Lee

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