Needs information

[Fabien Guignon]

We are changing our network to frame relay and my provider asks me about
LMI......
Any information will be apreciate....

[Brad Reese]

Hi Fabien:

What is LMI?

LMI is one of those really bad terms that means "Line Management Interface".
Its a bad term for 2 reasons, one because its more of a protocol than an
interface, and the second is that one of the two most widely used versions
of LMI is referred to as LMI. More about this later. Basically, LMI is a
keep-alive mechanism that periodically gives the end user some status
information about his connections. Every 10 seconds or so, the end user
polls the network, either requesting a dumb sequenced response or channel
status information. The network should respond with the requested
information; if it doesn't then the user will consider the connection to be
"down" (actually, it takes more than one failure to bring the line down as
its possible that a frame was lost due to noise). When the network responds
with a "FULL STATUS" response, it includes status information about DLCIs
that are allocated to that line. The user can use this information to
determine whether its logical connections are able to pass data.

For more info visit the "Frame Relay FAQ" link provided by Emerging
Technologies on the Frame Relay Tutorials web page:

http://www.alliancedatacom.com/frame-relay-tutorials.htm

Hope this helps.

Best regards,

Brad Reese
Frame Relay Resource Center
http://www.alliancedatacom.com
11130 Petal Street, Suite 800
Dallas, Texas 75238
800-444-5851 Toll Free
214-503-7400 Office

[Hal Dorsman]

Good explaination Brad, but it shouldn't matter Fabian. LMI is just a
keep alive signal. So when your provider asks about LMI, just say
'yes'. (they should do that by default anyway) Set your frame relay
parameters in your router to accept LMI from provider, and you should
be ready to go.

Hal

Hal Dorsman
Network Administrator
Saint Patrick Hospital
Missoula,Montana,USA
h...@saintpatrick.org

[Peter Carter]

Hal Dorsman wrote:

> Good explaination Brad, but it shouldn't matter Fabian. LMI is just a
> keep alive signal. So when your provider asks about LMI, just say
> 'yes'. (they should do that by default anyway) Set your frame relay
> parameters in your router to accept LMI from provider, and you should
> be ready to go.
>
> Hal

Actually, the link management protocol is not "accepted" by your router, it is
generated by your router and the network responds to it. I am quite sure that
your service provider is asking you what type of link management protocol you
want to use. The most common types are "LMI" and "Annex-D". On a Cisco router,
they are referred to as "Cisco" and "ANSI" respectively. Theoretically, Annex-D
will support more PVC's than LMI, but LMI reports the CIR of each PVC and Annex-D
does not. Either link management protocol works fine and it is really a matter
of personal preference.

Hope this helps.

Peter Carter
Technical Support - Data
Maritime Tel and Tel

[Fabien Guignon]

Thanks for all your answers. After Brad message i want to the url he gives
me and find that my router support ANSI, REV1 and CCITT.
so as Hal says i think my provider will tells me to enable the LMI.
By default it maybe ANSI....

Thanks again.
Fabien

[Alex]

May I see your Frame quote.
We have an incredible offer!
Rick L. Boshart
Cincinnati Bell Long Distance, Inc.
800 786 8867 extension 5873
Rlbo...@cbld.com

Fabien Guignon <cgltherm...@wanadoo.fr> wrote in message
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