Re: Frame Relay LAPF - LMI

Perfect explanation...Thanks :)

----- Original Message -----
From: "William McCall" <william.mccall_at_gmail.com>
To: "CCIE League" <ccieleague_at_ymail.com>
Cc: "CCIEGS" <ccielab_at_groupstudy.com>
Sent: Friday, September 11, 2009 7:31 AM
Subject: Re: Frame Relay LAPF - LMI

> Just one more update:
>
> If we're doing it DTE to DCE, LAPF only comes up when both sides are
> configured with
>
> frame-relay svc
>
> Hope that clears up any confusion.
>
> --WM
>
> On Thu, Sep 10, 2009 at 11:09 PM, William McCall
> <william.mccall_at_gmail.com> wrote:
>> Btw, my reference is Cisco Frame Relay Solutions Guide under the
>> "Frame Relay Switched Virtual Circuit (SVC) > Monitoring Frame Relay
>> SVC" section.
>>
>> Its a bit of a tricky question because LAPF core is basically the
>> framing of Frame Relay user frames and LMI frames. However, the
>> operational state in a "sh int" refers to the SVC signaling.
>>
>> On Thu, Sep 10, 2009 at 11:04 PM, William McCall
>> <william.mccall_at_gmail.com> wrote:
>>> Basically, LAPF is all about the SVCs in Cisco's context. Static PVC
>>> is still a PVC, not an SVC.
>>>
>>>
>>>
>>> On Thu, Sep 10, 2009 at 7:37 PM, CCIE League <ccieleague_at_ymail.com>
>>> wrote:
>>>> Experts,
>>>>
>>>>
>>>> What is the role of LAPF related to LMI?
>>>>
>>>>
>>>> 1. If LMI is disabled (with no keepalive) & DLCI status is STATIC, will
>>>> LAPF be used, will it come up, or will it be disabled or DOWN?
>>>>
>>>> 2. If using back to back FR with no LMI (no keepalive) & the PVC status
>>>> will be STATIC - why would LAPF not come up?
>>>>
>>>>
>>>> Thanks in advanced for the explanation...
>>>>
>>>>
>>>> Blogs and organic groups at http://www.ccie.net
>>>>
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>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>> --
>>> William McCall, CCIE #25044
>>>
>>
>>
>>
>> --
>> William McCall, CCIE #25044
>>
>
>
>
> --
> William McCall, CCIE #25044
>
>
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>
> _______________________________________________________________________
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>
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Received on Fri Sep 11 2009 - 13:14:04 ART