Hi, Before today I think I know the rip timers very clearly, but I am so puzzled now after I did some practice. The default timers for rip is 30 180 180 240. I think the flush timers just start at the same time as holddown timer. But in practice, I found that isn't true, I remove one network from rip network, after 180 sec, the route in routing table became possibly down and the holddown timers was really started, I thought the flush timers should started at this time too. But just after 60 sec, the route was flushed from the routing table. why???? I want to find some things useful in the CCO. But I am more puzzled, they say the flush timers should set more than holddown timers(that's very true), but they don't say when the flush timers tart( but in many books the authors say the flush timers start at the same time as holddnow timers and I think it is reasonable). and there is a example after explaining the command in the CCO. The timers is 5 15 15 30. 30 = 15 + 15. they explain that the route will became possibly donw after 15 sec and after another 15 sec holddown, the route will be flushed. ??????????? why they don't set the default timers to 30 180 180 360. when do the flush timers start at all? from the last update or just from the time when the route becam possibly down. one more thing, if I shutdown one interface. the route became possibly down soon. I using "show ip route *.*.*.* " check the info about the timer. I saw the last update timers is auto added by 180 sec, and after another 60 sec, the route was flushed. That really accelerate the convergence. but it let me more puzzled. can you explain clearly to me? thanks. jiang _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
