t;[EMAIL PROTECTED]>
To: "John Neiberger" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]>
Sent: Sunday, November 26, 2000 1:24 AM
Subject: Re: Line Down , Protocol Up ?
> I have seen this question in one of the cisco exams !
>
> The obvious answer was BUG ERROR !
>
>
I have seen this question in one of the cisco exams !
The obvious answer was BUG ERROR !
- Original Message -
From: "John Neiberger" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, November 23, 2000 4:22 AM
Subject: Re: Line Down , Protocol Up ?
Think this through starting at the first OSI layer. If the line is down
(physical) layer, then how could the next higher layer--which depends on
lower layers--ever possibly hope to function?
It can't. You can't have a functional datalink layer without first having
valid physical connectivity.
> > Hi Gang,
> > Just been looking at the binary possibilities of
> > these options i.e 0 0
> > 0 1
> > 1 0
> > 1 1
> >
> > And feel thet that Line Down, Protocol Up is
> > impossible.
> > Can anyone confirm this or has anyone seen anythin
Title: RE: Line Down , Protocol Up ?
You're correct; it's an impossible situation. If the line's down (e.g. circuit is unplugged), there's no way for protocol to pass. I used to use this question as a brainbuster with my coworkers. =)
- Don
-Original Message---
line down, protocol up is *definitly* impossible :)
Brian
On Wed, 22 Nov 2000, Phil Barker wrote:
> Hi Gang,
> Just been looking at the binary possibilities of
> these options i.e 0 0
> 0 1
> 1 0
> 1 1
>
> And feel thet that Line Down
thanks for all your support
cheers!!!
Jason
-Original Message-
From: William E Gragido [mailto:[EMAIL PROTECTED]]
Sent: Friday, September 15, 2000 10:41 AM
To: Yee, Jason; 'Plantier, William'; Felice Russell
Cc: Cisco Groupstudy
Subject: RE: line down
Thats great to hear
ll
> Cc: Cisco Groupstudy
> Subject: RE: line down
>
>
> thanks for all your kindness and help , I have finally isolated is a modem
> problem
>
> Jason
>
> -Original Message-
> From: Plantier, William [mailto:[EMAIL PROTECTED]]
> Sent: Thursday, September 1
thanks for all your kindness and help , I have finally isolated is a modem
problem
Jason
-Original Message-
From: Plantier, William [mailto:[EMAIL PROTECTED]]
Sent: Thursday, September 14, 2000 10:06 PM
To: Felice Russell; Yee, Jason
Cc: Cisco Groupstudy
Subject: RE: line down
You
You might want to check your clocking also.
> -Original Message-
> From: Felice Russell [SMTP:[EMAIL PROTECTED]]
> Sent: Thursday, September 14, 2000 8:51 AM
> To: [EMAIL PROTECTED]
> Cc: Cisco Groupstudy
> Subject: line down
>
> Jason -
> Have you checked the status of DTR (et
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