At 02:30 PM 4/27/01, you wrote:
>I know of one instance Priscilla,
>"no keepalives" configured on the interface will do an Up, Down. I little
>trick I learned doing labs.
>Tony M
>#6172
What I'm trying to find out is in what cases Cisco says that the interface
is up even though there is no cable attached. I'm not concerned about the
line protocol. I'm not asking about the second result or keepalives.
My routers have an AUI interface. Cisco says the interface is up even when
there is no cable attached.
I don't have a router with an RJ-45 interface, MII, GMII, etc. (lame, I
know! ;-) Do you? Could you check? Does it say up even if there is no cable
attached?
The original poster said that his FE says up, down with no cable attached.
Which kind of interface was it?
Just trying to document this with more exact details than Cisco
documentation. It seems to me that with some types of interfaces, it should
or could be smarter. Perhaps it's consistent across interfaces and that's
why I haven't gotten an answer, but I am still searching. Not getting a
real answer is making me down, down.
Priscilla
>-----Original Message-----
>From: Priscilla Oppenheimer
>To: [EMAIL PROTECTED]
>Date: Thursday, April 26, 2001 6:27 PM
>Subject: Re: FastEthernet is up, Line protocol down [7:1828]
>
>
> >I'm looking for a real answer from experience, not documentation. That
page
> >you sent me was something I helped write!!!! ;-)
> >
> >Priscilla
> >
> >At 06:53 PM 4/26/01, David Chandler wrote:
> >>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]
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> >> > > > > > Report misconduct and Nondisclosure violations to
> >> > [EMAIL PROTECTED]
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> >> > > > >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]
> >>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]
________________________
Priscilla Oppenheimer
http://www.priscilla.com
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