Hi, > I was wondering how Cisco routers could detect the directly connected > interface at the other end is shutdown! > > there are two general possibility on my point of view: > 1- the other device is sending special information before shutting down the > interface. > 2- there are some method of polling which is done periodically and based on > the answer, the router detect the interface is up or no!
Neither. The router just sees the power or light disappear on the interface... Sander _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
