The blogosphere is amazing: I was complaining about lack of posts a week ago, but the last days were a real bonanza:

• Jeremy Stretch started writing about BGP aggregation. So far he's covered the principles and the route suppression options. Unfortunately, my question still remains unanswered: why would you use these tweaks in a well-designed network?
• Anthony Sequeira started to explain the QoS mechanisms on PIX/ASA. So far he's covered the overview, modular framework, priority queuing and traffic shaping. Now we're waiting for part 5 of another trilogy in four parts.
• Joe Harris was bored during the meetings (his words, not mine) and preferred to focus on IOS configuration lock and Configuration Generation Performance Enhancement. Now we know why some people @ Cisco hate Dynamips: SEs have found yet another way to survive the boring meetings :).
• Greg Ferro described how TCP SYN cookies work and provided interesting insight into the brain maps of network- and server engineers, which is the first post you should read if you're depressed by the cloudy and cold autumn weather.