At 10:51 PM +0000 12/30/02, bergenpeak wrote: >Reading Doyle's V1 book. Page 195 mentions that when an update with a >hop count higher than that in the routing table is received for a route, >the route will go into holddown for 180 [sic] seconds (three update >periods).
I agree with you, but there is a special case. If the received route has a maximum metric value, then it's a poison reverse and should force holddown or withdrawal. If the current route were 3 hops and the new one were 4, it should be ignored. > >In the cisco page (below) for the "timers basic" command, the page >states that "...A route enters into a holddown state when an update >packet is received that indicates the route is unreachable. The route >is marked inaccessible and advertised as unreachable..." I'd interpret "unreachable" to be a maximum metric. > >It would seem that the explaination on the cisco site is correct and >the Doyle text is incorrect. > >Could someone confirm or explain what Doyle might be refering too? > >Thanks > > >http://www.cisco.com/en/US/products/sw/iosswrel/ps1828/products_command_summary_chapter09186a00800eeae6.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=59992&t=59989 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
