I've described the OSPF Graceful Shutdown functionality in an earlier post and got an excellent question about the implications of using OSPF stub router functionality with external routes.
The more I was digging into this issue, the more design questions I've got … and finally ended up writing a whole IP Corner article about it. You can read the in-depth discussion of design and implementation aspects of OSPF stub router functionality in the December IP Corner article: Bring your Network Closer to Five Nines with Graceful Shutdown.Posted to Cisco IOS Hints and Tricks by Ivan Pepelnjak
© Copyright Ivan Pepelnjak
