From: Dave Goldsmith (dgoldsmi@xxxxxxxxx)
Date: Thu Jan 04 2001 - 21:34:13 GMT-3
Vijay,
I agree with Ray, you really need to look at a show ip ospf data ext for the 15
0
net you are not seeing and show ip route for the forwarding address in this
entry.
Dave G.
Raymond May wrote:
> Vijay,
> Could you send a copy of your ospf database on R8.
>
> Brgds,
>
> Ray May
>
> >From: Vijay Venkatesh <vijay.venkatesh@usa.net>
> >Reply-To: Vijay Venkatesh <vijay.venkatesh@usa.net>
> >To: "BUI, TIN T (SBCSI)" <tb4565@sbc.com>
> >CC: "'Johnny Gorham'" <jgorham@cisco.com>, chrish@bjen.com,
> >ccielab@groupstudy.com
> >Subject: Re: OSPF virtual-link question
> >Date: Wed, 03 Jan 2001 18:56:00 -0500
> >
> >See prior email. Classic cisco magic
> >Vijay
> >
> >"BUI, TIN T (SBCSI)" wrote:
> > >
> > > Did you get this problem resolved? Please post results. Just some
> > > comments:
> > >
> > > * A virtual link is really just an extension of area 0 so there should
> >not
> > > be any problem with seeing loopback 0. Router id is always the highest
> >ip
> > > of router. Loopback will be looked first before other ip addresses.
> >One
> > > problem I've seen is that once a router id has been established, and
> >then
> > > you add a loopback, that loopback will not be your router id until you
> > > reload router. Some admins might not realize this so they try to use
> >router
> > > id of loopback for rid when it's not in effect yet (reboot would make it
> > > work again). I have also seen the reverse where a person adds loopback
> >1 to
> > > router so router id changed to loopback1 when router gets rebooted next
> >time
> > > which really mess things up especially if you are using virtual links.
> > > * Make sure that when you do show ip ospf vir that your hello and dead
> > > timers are same.
> > > * Check to make sure you do not have a routing loop. Are you doing
> > > redistribution of any routing protocols? If so, try putting filter to
> > > prevent that loopback from being redistributed just to test this.
> > >
> > > > Tin T. Bui
> > > > Senior Network Manager
> > > > Network Management Center
> > > > SBC Services Inc.
> > > > 7337 Trade Street, Rm 1110
> > > > San Diego, Ca 92121
> > > > Office #: 858-886-4644/858-886-4589
> > > > Pager #: 858-494-0482
> > > > Fax #: 858-549-4103
> > > > Email: tb4565@sbc.com
> > > >
> > >
> > > -----Original Message-----
> > > From: Johnny Gorham [mailto:jgorham@cisco.com]
> > > Sent: Wednesday, January 03, 2001 6:41 AM
> > > To: Vijay Venkatesh
> > > Cc: chrish@bjen.com; ccielab@groupstudy.com
> > > Subject: Re: OSPF virtual-link question
> > >
> > > I did something very similar on yesterday and reload of all routers was
> >my
> > > friend.
> > >
> > > Vijay Venkatesh wrote:
> > >
> > > > Yes yes I have all this setup fine. When I do a sh ip ospf data on r8
> > > > the network 150.150.100.0/24 shows as a summary as lsa 5. But it does
> > > > not put this into the routing routing table. r6 sees this network fine
> > > > with a /32. Debugs are useless and not really informative. The virt
> > > > link is up and I see all routes on r8 except for this one network.
> > > > ANy thoughts ?
> > > > Vijay
> > > >
> > > > ChrisH wrote:
> > > > >
> > > > > OSPF area 100 and 20 connect directly to Area 0. Area 10 needs to go
> > > through
> > > > > Area 100 to get to Area 0. Therefore, you should have a statements
> >that
> > > > > looks like:
> > > > >
> > > > > R6:
> > > > > area 100 virtual-link x.x.x.x( R1's RID)
> > > > >
> > > > > R1:
> > > > > area 100 virtual-link y.y.y.y (R6's RID)
> > > > >
> > > > > In R3, I assume that you have something that looks like:
> > > > >
> > > > > router ospf 100
> > > > > network 150.150.100.1 0.0.0.0 area 20
> > > > >
> > > > > I am not aware of any IOS bugs related to this issue.
> > > > >
> > > > > Chris
> > > > > -----Original Message-----
> > > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf
> >Of
> > > > > Vijay Venkatesh
> > > > > Sent: Tuesday, January 02, 2001 9:08 PM
> > > > > To: ccielab@groupstudy.com
> > > > > Subject: OSPF virtual-link question
> > > > >
> > > > > Here is the situation
> > > > >
> > > > > r8 ---- r6 ------r1----r3 ---- network 150.150.100.1/24 (loop 0)
> > > > >
> > > > > Between r1 and r3 is area 0
> > > > > between r6 and r1 is area 100
> > > > > between r8 and r6 is area 10
> > > > > r3's loop 0 is in area 20
> > > > >
> > > > > area 100 has a ospf virt link between r6 and r1
> > > > > The ospf virt link is up
> > > > >
> > > > > The problem
> > > > > -----------
> > > > > r3's loop0 is 150.150.100.1/24 and is in area 20. I can every
> >network
> > > > > on r8 except for the 150.150.100.1 network. What is the problem ? Is
> > > > > there something special when sending loopbacks across virtual links
> >?
> > > > > Is this an IOS issue ?
> > > > >
> > > > > Router versions
> > > > > ---------------
> > > > > all routers are running 11.2.19 IOS
> > > > >
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