Hi, No, this is not an acceptable solution. Router that will get elected DR will originate type 2 LSA and this will not be interpreted properly by nodes that don't expect type 2 for their point-to-point link. There will be "oddities" in your OSPF database and RIB after configuring this, where LSAs will be present in the database, but routes not inserted in the RIB.
These would be lost points on the exam. All routers *must* agree whether there is DR or not on the common segment. The proper solution is to modify priority on R5 and R6 to prevent them becoming DR. What value should you use here? -- Marko Milivojevic - CCIE #18427 Senior Technical Instructor - IPexpert Mailto: [email protected] Telephone: +1.810.326.1444 Fax: +1.810.454.0130 R&S Video on Demand Demo: http://bit.ly/aFyrU4 On Sun, Mar 7, 2010 at 15:14, RAragon <[email protected]> wrote: > Here is a specific question. In Volume 1 lab 10 there is a requirement that > R2 always be the DR. > > The way I configured it was I had specified R5 and R6 with the "ip ospf > network point-to-point" command. I then adjust timers on R2 to match. > Adjacencies came up and R2 thought that the first router to become adjacent > was the BDR and the other was DRother. > > So, does mixing DR electing interfaces with logical (ip ospf network: where > there is not DR election) work normally? Would this be an alternate > solution on the exam? please let me know if you have ever seen advice on > CCO or TAC cases saying that we should not mix these type of interfaces that > are "native" in ospf versus the "logically" configured with IP OSPF NETWORK. > > > I think you guys are great for being able to interpret our questions on this > mail list. I am sure we under-explain 90% of our questions because we are > working on that lab (and so much seem obvious to us at the time) and you > have the whole workbook to cover for questions! > > thanks again guys for the help. > > ray > > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
