From: V.Shekhar@GlobalAssurance.net
Date: Sun May 04 2008 - 02:53:24 ART
R1's & R2's loopback are in area 0 too. hence i have to join these
dis-contiguous areas.
The question is, if we should follow the physical link for creating the
VLs, or we can create VL as we please.
I apologize for framing the Q improperly.
-V Shekhar
CCIE(sec)#17589/CISSP/RHCE.
V.Shekhar@GlobalAssurance.net wrote:
> Very good observation indeed. :)
> well i was trying to simplify the question and in the process reworded
> it wrongly.
> Here it goes again:
>
> R1---R2---R3--vlan3
>
> Link R1--R2 is in OSPF area 12
> link R2 --R3 is in OSPF area *12*
> VLAN3 on R3 is in area 0
> Loopback int on R1 R2 and R3 are in area 0.
>
> Now to connect dis contiguous area 0 i can have 2 possible solutions.
>
> SOL1:
> VL from R1 to R2 and VL form R2 to R3
>
> SOL2:
> VL form R1 to R3 and VL from R2 to R3.
>
> I have seen in various WBs that they follow SOL1.
> I have tested both solutions work. however thats the advantage of
> using one over other? will I be peanilised for the solution I choose?
>
> Thanks!
>
> -V Shekhar
> CCIE(sec)#17589/CISSP/RHCE.
>
>
>
> Huan Pham wrote:
>> Hi
>>
>> The two ends of a virtual link have to be in the same area.
>> How VL 1-3 in the solution 2 is going to work? As you said that you
>> tested
>> OK for both solutions, I am just curious to see your config for
>> solution 2.
>> Thanks.
>>
>> BTW, in you example, if your objective is to have full reachability, you
>> will only need one VL between 1-2 or 2-3. You will only have problem
>> when
>> you add another area to any of the routers.
>>
>> Cheers,
>>
>> Huan
>> -----Original Message-----
>> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
>> V.Shekhar@GlobalAssurance.net
>> Sent: Sunday, 4 May 2008 2:06 PM
>> To: Cisco certification
>> Subject: Re: OSPF Virtual Link confusion.
>>
>> Any suggestions on this?
>>
>> V.Shekhar@GlobalAssurance.net wrote:
>>
>>> Consider a scenario
>>>
>>> R1---R2---R3--vlan3
>>>
>>> Link R1--R2 is in OSPF area 12
>>> link R2 --R3 is in OSPF area 23
>>> VLAN3 on R3 is in area 0
>>> Loopback int on R1 R2 and R3 are in area 0.
>>>
>>> Now to connect dis contiguous area 0 i can have 2 possible solutions.
>>>
>>> SOL1:
>>> VL from R1 to R2 and VL form R2 to R3
>>>
>>> SOL2:
>>> VL form R1 to R3 and VL from R2 to R3.
>>>
>>> I have seen in various WBs that they follow SOL1.
>>> I have tested both solutions work. however thats the advantage of
>>> using one over other? will I be peanilised for the solution I choose?
>>>
>>> Thanks!
>>> -V Shekhar
>>> CCIE(sec)#17589/CISSP/RHCE.
>>>
>>>
>>> Pass the CCIE in six weeks, Guaranteed!
>>> http://www.certscience.com/CCIE
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>>
>>
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