I think that your explanation is pointing more at point to multipoint. It's
somewhat confusing. Let's say for instance we have this:
Hub (10.1.1.1/24) -> Frame Circuit -> DLCI 20
Site1 (10.1.1.2/24) -> Frame Circuit -> DLCI 30
Site2 -(10.1.1.3/24) > Frame Circuit -> DLCI 40
Notice that each of these guys only has a single DLCI, however, they all sit
on the same IP segment.
You would use this setup in cases where the remote sites don't necessarily
need to talk to each other. If they do, then you have a split horizon
problem, and you either need to sub-interface on the hub site, or put in
frame-relay maps everywhere.
What's confusing about it is that in a normal frame world, you build PVCs to
each other directly. So each side of the PVC has a DLCI identifier.
Mike
Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=14604&t=14495
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