Protocol network timers use the timers basic man and router configuration about this command has four different arguments the update timer invalid timer the whole down in the flesh timer where the first one is how often do you tell the other routers what networks you know or how often is the are the updates seethe next one at the invalid time says the interval the time in seconds after which route is declared invalid around becomes invalid when there is an absence a updates that refreshes the route the route then enters the whole downstate the router smart is inaccessible advertises unreachable 350-018 however you can still use a performer impacts the default is a 180 seconds what this means is that once which one didn't hear it update for three minutes it marks the route is inaccessible and it gives it a and infinite metric value so it's saying that's unchanged happened in the routing table that I may not be able to actually reach this destination through rather five anymore once this happens once it goes into the inaccessible state the route is then going to go into are the whole downstate where during thewhole downstate the route as markets inaccessible and advertisers unreachable how are the router still use for forwarding this with it .

     For more information, visit this site >>>>>>> http://350-018cisco.com/