Date: Wed, 15 Oct 2003 22:34:52 -0200 From: "Giovanni P. Tirloni" <gpt@tirloni.org> To: freebsd-chat@freebsd.org Subject: Network stack presentation - community input needed Message-ID: <20031016003452.GJ89469@pixies.tirloni.org>
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Hi,
I'm preparing a slide presentation about our network stack. It's
targeted at the averate/intermediate network administrator that usually
deals with NAT, filtering, bridging, IPSec, etc.
I'd like input from the community, if possible, about what's a good way
to present this beast. I've two ideas,
1) Show the features and numbers
- A bit of history
- What is supported
- Performance numbers
- Where it can be used
- Small overview of each feature
2) How it's designed
- No history
- What are the big players (mbufs, interrupts, priorities, queues)
- Where is possible to tweak it and how
- The big picture
- How packets travel (receive, send, forward, bridge, filter)
- Where features (bridge, pfil/ipfw, netgraph) happen (above)
I guess I would have to spend more time explaining mbufs,
interrupts, priorities and other basic kernel components. Would
that be excessive?
If I choose the second path what are the most important things one
should know when designing for performance and security? Anything to
add to the list I made? I think I'm too focused on mbufs, interrupts
and queues (ip input, socket buffers, iface output), anything else?
I would like it to be a starting point for people interested in going
deeper in the details. I should take about 45 minutes.
Thanks in advance,
--
Giovanni P. Tirloni <gpt at tirloni.org>
Fingerprint: 8C3F BEC5 79BD 3E9B EDB8 72F4 16E8 BA5E D031 5C26
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