Re: frame relay and ospf confusion !!

Imran,

I am NOT sure if i uderstood you, but........If you are using frame-relay
map statement, your OSPF network type is Non-Broadcast, if the OSPF network
type is Non-Broadcast, the "Broadcast" keyword will have NO effect. I ask my
students NOT to configure "broadcast" unless it's required.

On Wed, Dec 8, 2010 at 5:54 AM, Anthony Sequeira <asequeira_at_ine.com> wrote:

> 1 - as long as the keyword broadcast is applied to the DLCI, it does not
> matter on which mapping you place it. For consistency and accuracy with my
> configurations when going quickly, I always place it on the mapping to the
> hub. This also fits in with my logical thinking nicely. :)
>
> 2 - "classic" lab scenarios can indeed feature interdependencies between
> the Frame and the OSPF network types. This, in fact, most likely leads to
> Cisco leaving Frame in the lab topology! Cross checking the IGP section is
> critical if you have any ambiguities in how to configure your Frame clouds.
> To answer your question directly, if your Frame circuits do not support
> pseudo-broadcasts, you are in trouble with OSPF network types that multicast
> their packets.
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> imran ali
> Sent: Wednesday, December 08, 2010 8:27 AM
> To: Cisco certification
> Subject: frame relay and ospf confusion !!
>
> hi group ,
>
> 1) on a Frame hub and spoke partially mesh network static *spokes to
> hub*resolution includes " broadcast " keyword . and not on mapping between
> spoke to spoke.
>
> why ? any difference will it make if i include broadcast keyword for spoke
> to spoke mapping
>
>
>
> 2) does my ospf network has to match with underlying frame relay static
> map statements . ??
>
> let say my ospf is running POINT TO MULTIPOINT NON BROADCAST " and my fr
> layer 2 static map statements has BROADCAST key word included.
>
> similarly if my ospf network on frame has BROADCAST network type and my FR
> mapping statements do not have broadcast keyword. will this work out .??
>
> the reason i m asking is if their is any dependency on FRAME RELAY task and
> OSPF task , do i have to cross check first with ospf and then start
> configuring FRAME.
>
> Regards.
>
>
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*Narbik Kocharians
*CCSI#30832, CCIE# 12410 (R&S, SP, Security)
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