RE: OSPF auto-reference bw for loopback links

Yes I understand that cost is probably irrelevant. I just wanted to know if
this was normal or 'expected' behaviour.

Thanks for your help.

Cheers,

-Aaron.

-----Original Message-----
From: Carlos G Mendioroz [mailto:tron_at_huapi.ba.ar]
Sent: Monday, 1 August 2011 5:54 PM
To: Aaron Riemer
Cc: 'Cisco certification'
Subject: Re: OSPF auto-reference bw for loopback links

Loopbacks usually live only on one router, so cost is irrelevant.
(unless you are doing anycasting, then it does not matter what the cost
is as long as it is the same everywhere).

Whoever did the coding knew this, and saved some lines ?
-Carlos

Aaron Riemer @ 31/07/2011 20:30 -0300 dixit:
> No one able to comment on below?
>
> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> Aaron Riemer
> Sent: Thursday, 28 July 2011 2:52 PM
> To: 'Cisco certification'
> Subject: OSPF auto-reference bw for loopback links
>
> Hi guys,
>
> I have found something interesting when manipulating the OSPF cost using
> 'auto-reference bandwidth' in that the cost of any directly connected
> loopback interfaces does not change (show ip ospf int loop0).
>
> Does this have something to do with the fact that the link is loopback or
> stub network directly connected to the router and therefore the cost
doesn't
> change? Modifying the cost has to be done manually.
>
> Any insight greatly appreciated.
>
>
>
> Thanks,
>
> -Aaron.
>
>
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-- 
Carlos G Mendioroz  <tron_at_huapi.ba.ar>  LW7 EQI  Argentina
Blogs and organic groups at http://www.ccie.net