Re: OSPF Virtual Links and PPPoFR

I have 3 routers 1,2 and 3... where 2 is the hub, all of them are ABRs
sharing the area 77 and have other area configured in theirs Loopback
interfaces. Router 1 has a Lo with Area 0, Router 2 has a Lo with Area 2 and
Router 3 has a Lo with Area 3. So I'm trying to connect the Areas 2 and 3 to
Area 0 through Area 77 ( area 77 virtual-link Router1-ID and viceversa)

I hope now is clearer.

Thanks and Brgds..... Victor

On 7/15/09, Joe Astorino <jastorino_at_ipexpert.com> wrote:
>
> What do your areas look like?
>
> - what is the area between hub and spoke 1

 - what is the area between hub and spoke 2

 - Do you have any other areas configured for something like loopbacks?

 On Wed, Jul 15, 2009 at 6:09 PM, Victor <cisco.all.stuff_at_gmail.com> wrote:
>
>> Understand.... the initial config is with the default interface type
>> (point-to-point for PPPoFR) in this case I can't have the VL up between the
>> hub and one spoke (spoke has the area 0) but I can have up the VL between
>> both spokes. After changing the config (interfaces ospf type point to
>> multipoint) both VL come up. My question is: if the interfaces type in the
>> first case are equal / compatible, why the VL does not come up between
>> hub-spoke?? I think it may be simple but I'm missing it.
>>
>> Thanks & Brgds..... Victor.
>>
>> On 7/15/09, Joe Astorino <jastorino_at_ipexpert.com> wrote:
>>>
>>> I'm confused about your question now -- Can you please re-word that?
>>> What was the "original configuration" and what is the configuration now? In
>>> general, the OSPF network types should match. You can get away with
>>> mismatches in some cases by tweaking timers, but I wouldn't recommend it
>>> unless you need to for a task.
>>>
>>> On Wed, Jul 15, 2009 at 4:48 PM, Victor <cisco.all.stuff_at_gmail.com>wrote:
>>>
>>>> Sorry...... a clarification when I said: "by default the ospf network
>>>> type for FR multipoint subinterfaces is multipoint non_broadcast".... I
>>>> really meant non_broadcast..... by mistake I repeated multipoint.
>>>>
>>>> Brgds.......Victor.
>>>>
>>>>
>>>> On 7/15/09, Victor <cisco.all.stuff_at_gmail.com> wrote:
>>>>>
>>>>> Thank you very much Brian and Joe,
>>>>>
>>>>> That was the point...... now I have this working, I changed the network
>>>>> type to point-to-multipoint, however I couldn't understand well what's
>>>>> happening. Well....by default the ospf network type for FR multipoint
>>>>> subinterfaces is multipoint non_broadcast and the ospf network type when
>>>>> using PPPoFR is poin-to-point (Virtual Access) but all the interfaces have
>>>>> the same network type, should not they work??
>>>>>
>>>>> So, with the initial config they became neighbors but the Virtual Link
>>>>> do not comes up, after I changed to p-t-m it's working
>>>>>
>>>>> Sorry if I'm asking and stupidity but I've been searching on the Cisco
>>>>> docs and I didn't find much information about these details.
>>>>>
>>>>> Could you pls add some other information on this issue?? Thanks again
>>>>> for your help
>>>>>
>>>>>
>>>>> Cheers.... Victor.
>>>>>
>>>>> On 7/15/09, Brian Dennis <bdennis_at_internetworkexpert.com> wrote:
>>>>>>
>>>>>> Victor,
>>>>>> Did you check to see what the OSPF network type is on the hub's
>>>>>> interface when using standard FR and then when using PPPoFR?
>>>>>>
>>>>>> Brian Dennis, CCIEx5 #2210 (R&S/ISP-Dial/Security/SP/Voice)
>>>>>> bdennis_at_internetworkexpert.com
>>>>>>
>>>>>> Internetwork Expert, Inc.
>>>>>> http://www.InternetworkExpert.com<http://www.internetworkexpert.com/>
>>>>>> Toll Free: 877-224-8987 x 703
>>>>>> Outside US: 775-826-4344 x 703
>>>>>>
>>>>>> ----- Original Message -----
>>>>>> From: "Victor" <cisco.all.stuff_at_gmail.com>
>>>>>> Sent: Tue, July 14, 2009 19:39
>>>>>> Subject:OSPF Virtual Links and PPPoFR
>>>>>>
>>>>>>
>>>>>> Hello Guys,
>>>>>> I've been trying to get running OSPF Virtual Links over a 3 routers
>>>>>> topology
>>>>>> 1 hub + 2 spokes using PPPoFR for connecting between them, where one
>>>>>> of the
>>>>>> spokes is the backbone and I have some Loopbacks created on each
>>>>>> router on
>>>>>> different areas, so finally I only can get running the Virtual Link
>>>>>> going
>>>>>> from spoke to spoke but NEVER the VL between the hub to the spoke
>>>>>> (area 0).
>>>>>> I changed the PPPoFR config and used only FR and everything works OK,
>>>>>> when I
>>>>>> try to use PPPoFR (no changes in OSPF config) I get the same problem.
>>>>>>
>>>>>> I'm sure I'm missing something..... do you have any suggestion??
>>>>>>
>>>>>> Regards.... Victor.
>>>>>>
>>>>>>
>>>>>> Blogs and organic groups at http://www.ccie.net
>>>>>>
>>>>>>
>>>>>> _______________________________________________________________________
>>>>>> Subscription information may be found at:
>>>>>> http://www.groupstudy.com/list/CCIELab.html
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> ----- End of original message -----
>>>>>>
>>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>>
>>> --
>>> Regards,
>>>
>>> Joe Astorino - CCIE #24347 R&S
>>> Technical Instructor - IPexpert, Inc.
>>> Cell: +1.586.212.6107
>>> Fax: +1.810.454.0130
>>> Mailto: jastorino_at_ipexpert.com
>>>
>>
>>
>>
>
>
>
> --
> Regards,
>
> Joe Astorino - CCIE #24347 R&S
> Technical Instructor - IPexpert, Inc.
> Cell: +1.586.212.6107
> Fax: +1.810.454.0130
> Mailto: jastorino_at_ipexpert.com

Blogs and organic groups at http://www.ccie.net
Received on Wed Jul 15 2009 - 20:56:39 ART