Re: OSPF Backbone Area Clarification

Per the OSPF RFC.
Technically, I presume the folks writing the RFC could've also made it the
highest possible value if they wanted to for the backbone area ID.
But it is easier to type a zero.

Interesting question.
Ron

On Tue, Mar 27, 2012 at 6:51 AM, Carlos G Mendioroz <tron_at_huapi.ba.ar>wrote:

> Believe it or not, people that design solutions try to make it as easy as
> possible. Given that you will always have only one backbone, it's easier to
> have it fixed than to have yet another parameter to configure.
>
> On a more conceptual side, design decisions are made in a context that is
> not always readily available, so even though it's nice to know why
> something is done one way or the other, sometimes the answer is just
> "because someone decided to do it so".
>
> Moy could have thought: hey, if someone starts with area 1.1.1.1 and then
> joins area 2.2.2.2, he might want to pick which one to become
> backbone. It seems he did not.
>
> -Carlos
>
> marc edwards @ 27/03/2012 07:30 -0300 dixit:
>
>> Nope
>>
>> On Tuesday, March 27, 2012, Saravanan Ponnaiah<
>> saravanan.ponnaiah8_at_gmail.com> wrote:
>>
>> Dear Calin,
>>>
>>> They explained as why we need a backbone area 0.
>>>
>>> My questions is "It is possible to make non area 0 as backbone in OSPF?"
>>>
>>> With Regards
>>>
>>> P.Saravanan
>>>
>>>
>>>
>>> On Tue, Mar 27, 2012 at 3:03 PM, Calin Chiorean<calin_at_engineer.com>
>>>
>> wrote:
>>
>>>
>>> Hello,
>>>>
>>>> https://supportforums.cisco.**com/thread/2095492<https://supportforums.cisco.com/thread/2095492>
>>>>
>>>> It's a longer discussion but it has actually an answer to your question
>>>>
>>> :)
>>
>>>
>>>> Cheers,
>>>> Calin
>>>>
>>>> On 03/27/2012 12:12 PM, Saravanan Ponnaiah wrote:
>>>>
>>>>> Dear Experts,
>>>>>
>>>>>
>>>>> I have a stupid doubt, but it's bothering me a bit as i cant get it
>>>>>
>>>> right
>>
>>> in my head.
>>>>>
>>>>>
>>>>> I know that a OSPF network has a Backbone Area. What i fail to
>>>>>
>>>> understand
>>
>>> is, why does the backbone Area always have to be Area 0? Why cant it be
>>>>>
>>>> any
>>>>
>>>>> number between< 0 - 4294967295>?
>>>>>
>>>>>
>>>>> With Regards
>>>>>
>>>>>
>>>>> P.Saravanan
>>>>>
>>>>>
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>>
>>
>>
>>
> --
> Carlos G Mendioroz <tron_at_huapi.ba.ar> LW7 EQI Argentina
>
>
>
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Received on Tue Mar 27 2012 - 08:53:40 ART