Hmm the catch here is the " UNICAST" from DR and the other side will Unicast it instead of sending a Multicast packet
But the multicast packet will not be Acknowledged that is sent by the Neighbor on the Point to Point side. I will also try to do a wireshark capture and update u Thanks for Technically Abusing me. Nice learning :) lol On Tue, Jun 5, 2012 at 10:57 PM, Marko Milivojevic <[email protected]>wrote: > Wrong again ;-) > > I would have to re-run all the Wireshark traces to give you 100% > correct answer, but the below one is say 95% correct. > > They will be both. DROther will multicast them, but it will respond in > kind if it receives unicast. DR will always unicast. Assumption here > is that not all neighbors will be interested to hear what DR has to > say, but only the one that is attempting to form an adjacency. While > DROther (or in this case a mismatched p2p) will multicast DBD, when it > receives the unicast descriptor from the DR it will send its own back > as unicast if the previous one went unack'd. > > > -- > Marko Milivojevic - CCIE #18427 (SP R&S) > Senior CCIE Instructor - IPexpert > > On Tue, Jun 5, 2012 at 10:20 AM, HEMANTH RAJ <[email protected]> wrote: > > hmm yeap sure marko , yes LSU are not multicast correct, but DBDs are > sent > > on multicast or unicast on ethernet. > > I will try this and let u know th results. > > When i was doing the lab, i found the DBs are not properly synchronized. > I > > thought the DR may be a problem > > Have to buckle up my socks again to see this > > > > hmm LSU's are multicast or unicast depending on the media ( ethernet or > > point to point ) > > > > On Tue, Jun 5, 2012 at 10:46 PM, Marko Milivojevic <[email protected]> > > wrote: > >> > >> Try it... It's such a common problem we even have it in many of our > >> workbooks. > >> > >> Link state updates are not multicast. > >> > >> -- > >> Marko Milivojevic - CCIE #18427 (SP R&S) > >> Senior CCIE Instructor - IPexpert > >> > >> On Tue, Jun 5, 2012 at 10:10 AM, HEMANTH RAJ <[email protected]> > wrote: > >> > Hi Marko , > >> > > >> > hmm i don't see my databases synchronized if i have one side as BCAST > >> > and > >> > other side as point to point. > >> > how will DR accept on 224.0.0.5 if he thinks others are DRother > >> > how will the DB are synced ? > >> > could u explain me a bit more ? > >> > > >> > > >> > On Tue, Jun 5, 2012 at 9:47 PM, Marko Milivojevic < > [email protected]> > >> > wrote: > >> >> > >> >> On Tue, Jun 5, 2012 at 9:10 AM, Venkee <[email protected]> wrote: > >> >> > In this case, from one end (BCAST), would see the type-2 lsa in > >> >> > database > >> >> > but > >> >> > not on router where we have p-t-p, he might have said this > >> >> > >> >> That is correct. However, if you look at the adjacency between the > two > >> >> routers, it would appear as perfectly valid and the databases will be > >> >> in sync. > >> >> > >> >> Another difference you will see in the database is the type of link > in > >> >> Type-1 LSA that will be Point-to-point/Stub on the p2p side and > >> >> Transit on the broadcast side. This discrepancy is the one routers > >> >> will use to identify the problem and cause them not to "trust" each > >> >> other. > >> >> > >> >> -- > >> >> Marko Milivojevic - CCIE #18427 (SP R&S) > >> >> Senior CCIE Instructor - IPexpert > >> > > >> > > >> > > >> > > >> > -- > >> > Problems arise because we talk,problems are not solved because we > don't > >> > talk > >> > So good or bad talk to your affectionate one's freely. > >> > > >> > Yours Friendly, > >> > H P HEMANTH RAJ > >> > CCIE#28593 (R&S) > >> > > >> > > > > > > > > > > > -- > > Problems arise because we talk,problems are not solved because we don't > talk > > So good or bad talk to your affectionate one's freely. > > > > Yours Friendly, > > H P HEMANTH RAJ > > CCIE#28593 (R&S) > > > > > -- Problems arise because we talk,problems are not solved because we don't talk So good or bad talk to your affectionate one's freely. Yours Friendly, H P HEMANTH RAJ CCIE#28593 (R&S) _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
