From: V.Shekhar@GlobalAssurance.net
Date: Sun May 04 2008 - 02:39:57 ART
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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