2 posts tagged with "vpp"

A while back, I wrote a blog post explaining some of the basics of writing plugins for the VPP networking toolkit.

In that previous post, I explained a few mechanisms for hooking a plugin into VPP's graph architecture so that your code can process incoming packets.

I also briefly mentioned something called DPOs (data path objects) but didn't explain what they are or how they work. Since then, I've been reading and hacking on code that involves DPOs, so I'd like to attempt to explain them in this post.

Recently, my teammate Jessica wrote an excellent intro blog post about VPP. VPP is an open source user-space networking framework that we're looking into at Igalia. I highly recommend reading Jessica's post before this post to get aquainted with general VPP ideas.

In this blog post, I wanted to follow up on that blog post and talk a bit about some of the details of plugin construction in VPP and document some of the internals that took me some time to understand.