From: Vijay Venkatesh (vijay.venkatesh@xxxxxxx)
Date: Wed Jan 03 2001 - 20:56:00 GMT-3
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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