The first guy asked me several Perl questions, some I knew and others I didn't remember. He seemed to be ok with that (at least, not disappointed). The second guy asked me a question similar to what I'd been asked in the phone screen. Fortunately, having reviewed the order of calls for initiating communications with sockets from the client and server ends, I was able to answer the question (+1 for me). He then asked if I had a code sample with me. I didn't (I wasn't asked to bring one, and in fact, never have been), so he asked me to describe some of the code I worked on at AV and also write and example on the whiteboard. I tried to write the part of the code that read the log header files, but I couldn't remember everything I'd done. Having spent part of yesterday working on a regexp to recognize IPv6 addresses helped somewhat. The third guy didn't ask me any technical questions at all. Mostly, he wanted to know what the organizational hierarchy in AV was like, and what type of environment I felt comfortable working in.
The last guy was the Director of R&D. I didn't know him, but I'd heard of him, and had read several articles of his. I figured he was probably the person I needed to impress most, and that he could probably give me a very difficult interview if he wanted to. However, he didn't ask me too many technical questions either. Mostly, he talked about the projects that I'd be working on if I were hired. Having spent some time (re)learning IPv6 and BGP came in handy, because I was able to complete some of his sentences, and understood a fair amount of what he was talking about. I still have a lot to learn, however.
Because we ran over, I didn't get a chance to talk to the HR rep for the followup until yesterday. She hadn't had a chance to talk to the group leader, so she didn't know my status. It might not be until January before anything is decided, because they spend a lot of time trying to make sure a candidate is the right fit.
At least one thing I was happy about – the talk with the R&D director reminded me of what it was like to have a discussion about networking with a peer. When something like that happens, it makes me feel as if I'm on the right track with regards to my career in general.