Found some info:
Interface is UP: means the routers ethernet hardware has been activated.
Line Protocol Down: The router never sees any of the keepalives that it
sends out.
YES: you'll get the same thing with RJ45...
http://www.cisco.com/univercd/cc/td/doc/cisintwk/itg_v1/tr1904.htm
Search for: "show interfaces ethernet Field Descriptions" it'll explain
in a little more detail.
DaveC
Priscilla Oppenheimer wrote:
>
> I tried to do some more research on this and couldn't get a good answer.
>
> Does anyone know exactly in which cases the router reports the interface
> up, down even if there is no cable attached? Looking at show interface
> ethernet,
>
> Router reports up, down with no cable for AUI.
>
> How about RJ45?
>
> How about MII?
>
> GMII?
>
> Others?
>
> Thanks
>
> Priscilla
>
> > > Priscilla
> > >
> > > At 08:21 PM 4/25/01, md. nazri wrote:
> > > >thanks for the answer...
> > > >i understand that LP will down if no connection attach, but why FE
still
> >up,
> > > >does it up forever until we shut it down? Does it apply the same to
> > > >Ethernet..?
> > > >----- Original Message -----
> > > >From: "Vincent Chong"
> > > >To:
> > > >Sent: Wednesday, April 25, 2001 3:48 PM
> > > >Subject: Re: FastEthernet is up, Line protocol down [7:1828]
> > > >
> > > >
> > > > > 1) I guess you enable the fastethernet port in the running
> > > > > configuration. You have to
> > > > > shutdown the port, so the port will administrative shut down
and
> >line
> > > > > protocol down.
> > > > >
> > > > > 2) Line protocol will up if there is any phyiscal connection
> >attached
> > > >to
> > > > > Fastethernet.
> > > > > Becasue the port in your router will detect keepalive signal,
> when
> >it
> > > > > detected, it will
> > > > > up. You can type no keepalive under interface configuration,
> >the
> > > > > ethernet interface
> > > > > will keep up even no physical connection. You have to enable
the
> > > > > interface, of courese.
> > > > >
> > > > > Hope this help
> > > > > Vincent Chong
> > > > >
> > > > >
> > > > >
> > > > > ""md. nazri"" hi all,
> > > > > > got one question regarding FastEthernet on Cisco 2620..
> > > > > > why the status showed FastEthernet is up, Line protocol down
> >although
> > > >the
> > > > > > cable was pulled out from the port...in what cases the port will
> > > >down..any
> > > > > > help appreciated
> > > > > >
> > > > > > tq
> > > > > > FAQ, list archives, and subscription info:
> > > > > http://www.groupstudy.com/list/cisco.html
> > > > > > Report misconduct and Nondisclosure violations to
> >[EMAIL PROTECTED]
> > > > > FAQ, list archives, and subscription info:
> > > >http://www.groupstudy.com/list/cisco.html
> > > > > Report misconduct and Nondisclosure violations to
> [EMAIL PROTECTED]
> > > >FAQ, list archives, and subscription info:
> > > >http://www.groupstudy.com/list/cisco.html
> > > >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> > >
> > >
> > > ________________________
> > >
> > > Priscilla Oppenheimer
> > > http://www.priscilla.com
> > > FAQ, list archives, and subscription info:
> >http://www.groupstudy.com/list/cisco.html
> > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> >FAQ, list archives, and subscription info:
> >http://www.groupstudy.com/list/cisco.html
> >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
> ________________________
>
> Priscilla Oppenheimer
> http://www.priscilla.com
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=2189&t=1828
--------------------------------------------------
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
