RE: frame relay and ospf confusion !!

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.

Blogs and organic groups at http://www.ccie.net
Received on Wed Dec 08 2010 - 07:54:25 ART