I've implemented a similar setup to your second thought - area 0 across the hubs
and a separate area for each set of hub 'spokes'. Hub routers are ABRs. If
your spoke sites have more than one router each you'll need to watch out for
your areas getting too large, but it's not likely to be a problem. Works fine.
I'm not quite clear on your first suggestion - are you meaning to put all of the
spoke sites into the same stubby area? Not sure what you're gaining by doing
that. You'll still have all your intra-area routes, which unless you have more
network than you've mentioned, is virtually everything anyway. And it would be
a fairly large area in terms of number of routers, although it would probably be
OK.
If you mean each spoke is a separate area, that sounds like way too many areas
on the hub routers to me.
I'd go with your second choice, but then that's what I'm familiar with :-)
JMcL
---------------------- Forwarded by Jenny Mcleod/NSO/CSDA on 10/05/2000 13:28
---------------------------
"mjburg" <[EMAIL PROTECTED]> on 10/05/2000 12:35:05
Please respond to "mjburg" <[EMAIL PROTECTED]>
To: "cisco" <[EMAIL PROTECTED]>
cc: (bcc: JENNY MCLEOD/NSO/CSDA)
Subject: OSPF over frame relay
I was wondering if anyone could help me out. I need to implement OSPF over
frame relay. I have a hub and spoke topology for the frame relay. There
are 3 main hubs each with about 20 sub-interfaces on them (all point to
point). I am looking for the best way to implement OSPF. I was thinking of
a couple of things. First I could make the hub routers area 0 and then have
the spokes be a totally stubby area. I was also thinking of dividing the
frame network into 4 sections. Area 0 as my backbone and then 3 areas (one
area at each of the hub sites). Has anyone implemented such a thing?
Thanks in advance for the help.
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