I have been confused with Jeff Doyle's book 'Routing tcp/ip Volume 1' = for a long time.Anyone who can explain it for me will be appreciated.My = question is on DUAL,p354-p362,Diffusing Computation Example 2.In figure = 8.19,when Wright finds the distance to 10.1.7.0 change,it sends update = to all neighbors and then becomes active.But in figure 8.20,when Cayley = finds the distance to 10.1.7.0 change,it doesn't send update to its = neighbors.Instead,it goes active and sends query to its neighbors = immediately.Can anybody tell me when the router will send update or when = the router will not? _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]