From: ccie candidate (ccie1@xxxxxxxxx)
Date: Sat Aug 17 2002 - 13:17:48 GMT-3
Claudine ;
im not sure about the next hop thing , what im sure of is that this the case wi
th BGP when run over broadcast or non-broadcast network ...but not sure about o
spf .
the second part of you question is not clear ..you said what is the solution fo
r ospf over NBMA...you mean the problem to form adj.??
if so ..you have to use the neighbor command , OSPF when see NBMA network will
not try to send hello (even if you map with broadcast keyword ) unless you do e
ither of
1-define your neighbors (neighbor command )
or
2-change the network type from the ospf point of view
(ip ospf netw) command
i dont see what is your point of using policy routing here ??
the nicest reference about FR in my opinion is caslow book (probably the best c
hapter of the whole book ).
HTH
--On Sat, 17 Aug 2002 16:10:19 Claudine DEMAR wrote: >Hello. > >Little Question regarding OSPF over NBMA networks: >R1, R2, R3, R4 connected in a hub(R1)- spokes topology. >R1 has a subint multipoint; R2, R3, R4 are configured on their physical >serials. All routers in area0. R1 is DR. > >Finally, the difference between using NBMA and POINT_TO_MULTIPOINT would be >that in the first case(NBMA) the spokes will see the routes for the other >router's networks with next-hop=remote router. > >In second case (PTMP), the spokes will see the routes for the other router's >networks with nexthop=hub router. > >Is that correct ??? > >Also solutions to OSPF over NBMA would be to use frame map ip statements or >policy routing. Is that correct ?? Any other suggestions ?? Any reference >books or papers on the subject ? > >Many thanks, > >Claudine > > >
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