Jon, thanks a lot. your explanation is very clear. best regards james ""Jon"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > It depends, if you are using backup interfaces then EIGRP won't bring the > line up obviously. > > I suspect that you are using floating statics though, in which case, if you > just specify passive interface then no adjacency will be formed regardless > of the state of the interface. If you then specify a neighbor so it is > unicast, it will bring the line up (an keep it up) if it is defined as > interesting traffic. If it isn't seen as interesting, it will form an > adjacency when the line is up (by some other interesting traffic) which will > then break when the line goes down again. > > Regards > > Jon CCIE R/S > Nottingham UK. > > > > > ""james kang"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > hi, anyone > > I am preparing the CCIE lab. there r one question about eigrp on BRI. > > i am using bri to backup frame relay connection. to prevent the eigrp from > > bring up the isdn line, i prefer the command "passive-interface" than > filter > > list. > > but i am wondering whether the router can form the eigrp adjacency with > > other guys after the primary link is down. > > any guide will be appreciate.
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