Think of FR as point-to-multipoint (multiple point-to-point), namely,
hub-and-spoke, which is the same as the star topology.
The hub router can talk to any of the spoke routers, but a spoke router can
not talk to other spoke routers unless it goes thru the hub router first.
Think of the difference between point-to-multipoint and, say, ethernet -
both are multiple-access, but FR is non-broadcast because there's only one
node at the other end of each link. The reason it's "multiple access" is
because point-to-multipoint is actually multiple point-to-point. Ethernet,
on the other hand, can have more than two nodes sharing the same "physical"
link, thus broadcast is possible.
HTH,
Rog
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> A.Strobel
> Sent: Saturday, September 30, 2000 3:19 AM
> To: [EMAIL PROTECTED]
> Subject: About Frame Relay
>
>
> Sometimes, understanding just one sentence takes hours.
> The following sentence has taken my time for more than a week,
> still I can not
> get it.
> Could somebody please explain and enlighten me please:
>
> "Frame Relay network, like most WANs, is based on star
> topologies, and does
> not support one-to-any broadcasting. "
>
> This is from the CID book by Matthew Birkner, page 302.
>
>
> TIA
>
> A. Strobel
>
> ____________________________________________________________________
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