Hi, the problem is: neta netc ----A-----B------C----
well, all books of world state: - when netc went down, router C delete it from RT and poisoned this route (netc) to B. B receives the poison update , triggers the Holddown timer (the netc is in possibly down) and generates a poisoned routes to router A . Router A go in holddown. After holddown the route is purged from RT. sound well ? In my lab : - when netc went down router c delete it from Rt and generates a poison update to B. But B dont get in holddown and delete quickly the route. B generates a poison update to routerC . Router C deletes immediatly the net. And holddown ?????!!! To generate an holddown state in a router , i have configurated passive-interfaces (to simulate a broken topology with no layer 1 disruption)on "A" per ex., and B after invalid timer time-out get in holddown state. But always, B generates a poisoned route (16) to C that deletes the network ( no holddown). My question is : Is that the really and good functionality of Rip or not? thanks in advance giuseppe Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=48179&t=48179 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]