I believe someone might have mentioned this already but since I'm studying it right now I thought I'd ask again... It would be greatly appreciated if someone can shed some light on this.
For OSPF, I understand that a "flapping" subnet will cause LSAs to be flooded throughout the internetwork at each state transition. However, my question is: TCP / IP Vol1 by Jeff Doyle says if a subnet is summarized by a summary address, the subnet's instability will no longer be advertised. But if this is the case, then what happens if:- e.g. Router A advertised a summary route (advertising subnet 172.20.10.0 /24 to Router B. Now if a host in that subnet (say 172.20.10.1 is bouncing) - if this instability is hidden by the summary route, does it mean that Router B wouldn't realized that 172.20.10.1 is flapping, and continues to forward packets to it? Please help... Best Regards, Hunt Lee Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=37228&t=37228 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
