[c-nsp] shutdown process on interfaces in cisco routers

[Hari bamsha Sapkota]

Please take a look at keep alive message, which is sent every 10 sec...
correct if i'm wrong....

On Mon, Oct 1, 2012 at 11:58 AM, m s <mah.s1990 at yahoo.com> wrote:

> Hi
>
> In cisco routers when we shutdown an interface how other routers
> understand this?
> My aim is that when tow routers are connected to each other and their
> interfaces are on the "protocol" parameter in "show ip interface brief"
> command is on and after one of interfaces be shutdown this parameter become
> off,I want to know that how this happen? Does any packets exchange? what
> packets? for example arp or cdp packets?
> Thanks
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