Re: OSPF Virtual Links and PPPoFR

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.
>>>>
>>>>
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>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> ----- 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

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Received on Wed Jul 15 2009 - 19:09:26 ART