Yeah, it's one of my favorites as well. The year it came out, the Hugo Award had a rare split: two winners for Best Novel that year. A Fire Upon the Deep and Doomsday Book by Connie Willis. Both are excellent and a couple of the best science fiction novels of all time, and very hard to compare with each other. Fire Upon the Deep is a grand epic science fiction, and Doomsday Book is time travel to the 14 century.
I do need to re-read it. It's been decades since I last read it. There was a sequel released a few years ago. Sadly someone at Qt3 in another thread told me it wasn't very good.
I'll likely still read it though.