From: Ron Lim (gottobeccie@gmail.com)
Date: Wed Aug 22 2007 - 22:35:02 ART
All thanks to Bruce Caslow, Bridges, Router and Switches!
On 8/23/07, ISolveSystems <support@isolvesystems.com> wrote:
>
> You are right Lim.
>
> On 8/22/07, Ron Lim <gottobeccie@gmail.com> wrote:
> >
> > Hey Pal,
> >
> > I see that's fastethernet. Broadcast media, that means it will have DR
> > and BDR.
> >
> > It should be fine as all router (DROTHER) will form adjacencies with
> > only DR and BDR and will leave as state "2way" to other DROTHER router.
> >
> > Please check if it's relationship from DROTHER to DROTHER.
> >
> > I remember reading it somewhere.
> >
> > Correct me if I'm wrong pal.
> >
> > Thank you.
> >
> > Regards,
> > Ron
> >
> >
> > On 8/23/07, Jian Gu <guxiaojian@gmail.com > wrote:
> > >
> > > Come on guys, there are 4 routers in a LAN, one is DR, one is BDR, the
> > > rest
> > > 2 are neither DR nor BDR, what adajency will these two form? OSPF 101.
> > >
> > >
> > > On 8/22/07, Joseph Brunner <joe@affirmedsystems.com> wrote:
> > > >
> > > > If the task doesn't say don't do it, I always run "ip ospf
> > > mtu-ignore"
> > > > around the switches!
> > > >
> > > > LOL they often have a 1514 svi mtu, or 1504 system mtu when running
> > > > l2tp-tunneling. 99% I run this as a best practice. If ever a task
> > > doesn't
> > > > allow it, then just adjust the ip mtu on the svi, etc. of the
> > > switch.
> > > >
> > > > -Joe
> > > >
> > > > -----Original Message-----
> > > > From: nobody@groupstudy.com [mailto: nobody@groupstudy.com] On
> > > Behalf Of
> > > > ISolveSystems
> > > > Sent: Wednesday, August 22, 2007 6:39 PM
> > > > To: Cisco certification
> > > > Subject: IP OSPF neigh stuck in 2WAY
> > > >
> > > > Hello expert,
> > > >
> > > > R5(FA0/1) and R4(Fa0/0) are in VL45 as well as SW3 and SW4. For
> > > some
> > > > reason, R4 and R5 stuck in two way. All the others neighbor up. I
> > > have
> > > > turned on debugging and check the config and found nothing wrong.
> > > >
> > > > Any idea?
> > > >
> > > > Rack1R5(config-if)#do sh ip osp nei
> > > >
> > > > Neighbor ID Pri State Dead Time Address
> > > > Interface
> > > > 150.1.4.4 0 FULL/ - - 129.1.54.4
> > > > Serial0/0/0.54
> > > > 150.1.4.4 1 2WAY/DROTHER 00:00:39 129.1.45.4
> > > > FastEthernet0/1
> > > > 150.1.9.9 1 FULL/DR 00:00:32 129.1.45.1
> > > > FastEthernet0/1
> > > > 150.1.10.10 1 FULL/BDR 00:00:38 129.1.45.2
> > > > FastEthernet0/1
> > > > 150.1.8.8 1 FULL/DR 00:00:34 129.1.58.8
> > > > FastEthernet0/0
> > > > Rack1R5(config-if)#
> > > >
> > > > Rack1R4#sh ip osp nei
> > > >
> > > > Neighbor ID Pri State Dead Time Address
> > > > Interface
> > > > 150.1.5.5 0 FULL/ - - 129.1.54.5
> > > > Serial0/0/0.54
> > > > 150.1.6.6 1 FULL/BDR 00:00:34 129.1.46.6
> > > > FastEthernet0/1
> > > > 150.1.5.5 1 2WAY/DROTHER 00:00:31 129.1.45.5
> > > > FastEthernet0/0
> > > > 150.1.9.9 1 FULL/DR 00:00:37 129.1.45.1
> > > > FastEthernet0/0
> > > > 150.1.10.10 1 FULL/BDR 00:00:33 129.1.45.2
> > > > FastEthernet0/0
> > > > Rack1R4#
> > > >
> > > > Rack1SW3(config-if)#do sh ip osp nei
> > > >
> > > > Neighbor ID Pri State Dead Time Address
> > > > Interface
> > > > 150.1.4.4 1 FULL/DROTHER 00:00:35 129.1.45.4
> > > Vlan45
> > > > 150.1.5.5 1 FULL/DROTHER 00:00:32 129.1.45.5
> > > Vlan45
> > > > 150.1.10.10 1 FULL/BDR 00:00:34 129.1.45.2
> > > Vlan45
> > > > 150.1.10.10 0 FULL/ - 00:00:34 129.1.34.10
> > > > Port-channel34
> > > > Rack1SW3(config-if)#
> > > >
> > > >
> > > _______________________________________________________________________
> > > > Subscription information may be found at:
> > > > http://www.groupstudy.com/list/CCIELab.html
> > > >
> > > >
> > > _______________________________________________________________________
> > > > Subscription information may be found at:
> > > > http://www.groupstudy.com/list/CCIELab.html
> > >
> > >
> > > _______________________________________________________________________
> > > Subscription information may be found at:
> > > http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Sat Sep 01 2007 - 11:32:12 ART