hey Paul, the 'ospf topology' is defined on the interface with the 'ip ospf network point-to-multipoint' command
I ran a few scenarios with a frame-relay emulator and noticed that ospf was still sending out multicasts to 224.0.0.5 - all spf rotuers & 224.0.0.6 - spf DR's & BDR's (I used an extended access list with logging on) when config'd as pt-to-multipt I hope this helps, Charles ""pauldongso"" wrote in message news:200211082356.XAA19601@;groupstudy.com... > Hi, > > Jeff Doyle says in one session: > > "in point-to-multipoint network, netwokrs are seen as point-to-point > links, the ospf packets are multicast" > > in another session, he says: > "On NBMA, point-to-multipoint, and virtual link network types, Hellos > are unicast to individual neighbors" > > So what is actually used for point-to-multipoint interface, unicast or > multicast? > And also, how does the point-to-multipoint interface config look like, > i would image it is a few point-to-point subinterface under FR or ATM > primary interface. > > Thanks > > Paul Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=57157&t=57149 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
