For me about 75% of the day is boring, going through logs, doing minor non impacting changes, telling the systems guys over and over that it's not a network issue,, working with other groups to schedule maintenence windows, deploying older technologies that you already know like the back of your hand. But the real fun starts when something breaks, sure it's stressfull when VPs are coming over asking when something is going to be back up, but I love troubleshooting...unless of course it starts with a 3am call to your cellphone, like last night 🙁 Also working with and deploying new technology is great. We're in the process of ordering a whole bunch of cisco optical gear (15454 platform mostly) and I can't wait for it to show up...along with the sup 720s and the 10 GigE modules 🙂
That really isn't a description of my tycical day, but I think it gets at least part of the point accross.