Re: sflowtool multicast-aware?

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Hi Niel,

On 03/10/2005 19:00, Neil McKee wrote:
> sflowtool is not multicast aware at the moment. (Our Traffic Server
> product is).
>
> It is a small change so we can look into adding it to the next
> sflowtool release, but feel free to download and tweak the sources
> yourself. It's just a matter of filling in a "struct
> ip_mreq" (multicast request) and using it with setsockopt() on the
> UDP read socket. I seem to remember that you also need to add an
> entry to the linux routing table so it knows what interface to
> deliver to.

I'm not really a C hacker (having not really touched C coding in a
number of years), so will hopefully await an update to your released
code ... unless someone else can do the patch :)

> If you want to simulate it now, you can use sflowtool to copy the
> input sflow stream to a number of receivers by repeating the "-f host/
> port" option for each one.

I'm actually using that functionality on-host (fanout to different ports
on localhost), which is very useful for testing and other purposes :)

Thanks for the quick response.

Ivan
- --
Ivan Beveridge
<ivan@linx.net> http://www.linx.net/
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Received on Mon Oct 3 11:51:05 2005