The MPLS-OPS Archive

[Spice Sylvia <falsesylvia@yahoo.co.uk>]

Hi Sudha


Did you mention AS override needs to be implemented on
the "CE routers"?

 --- Sudha <sudha.r@ddsl.net> wrote: 
> Hi Sylvia,
>     AS Override option needs to be enabled at both
> the CE Routers for them to exchange routes among
> themselves which are of same AS.
> 
> Pls let me know what exact problem u face...
> 
> Regards.
> Sudha.
> 
>   ----- Original Message ----- 
>   From: Spice Sylvia 
>   To: mpls-ops@mplsrc.com 
>   Sent: Saturday, January 22, 2005 4:29 PM
>   Subject: Re: [MPLS-OPS]: Re: MPLS on Interface/
> recursive VPNS
> 
> 
>   hello friends,
>   > > 
>   > > Not necessarily. If the motive is to provide
> the
>   > transport service, then
>   > > CsC is still the way to go.
>   > > Whether the ASN values are the same or not
> usually
>   > has no relevance to
>   > > the above conclusion.
>   > 
>   > Yeap.I go agress about this. Even public or
> private
>   > ASN can be done
>   > without overlapping ip addresses :)
>   > 
>   > > And this is no different from the usual VPN
>   > service. Think of it as the
>   > > following -
>   > >  1) If the VPN customer has the same ASN in
> all
>   > the sites, then the SP
>   > > need to use "as-override"
> 
>   To comphend this I was trying this in my lab:
> 
>   AS1-------AS2---------AS1
>   |          |           |
>    ---------AS3----------
> 
>   so AS2 and AS3 are carrier of carriers?
> 
>   When I do AS1 over ride on AS1 routers, and I
> withdraw
>   a prefix from the left side AS1, the above
> topology
>   does not seem to converge :(, the one on the right
>   still advertises it :(
> 
>   I think it must be a configuration issue?
> 
> 
> 
>   > >      to facilitate the CE routes being
> accepted at
>   > the other CEs.
>   > >  2) If the VPN customer has unique ASN in each
>   > site, then the SP doesn't
>   > > need to use
>   > >      any special knob, since BGP (at the CE)
> would
>   > accept the remote
>   > > site routes just fine.
>   > 
> 
> 
> 
> 
> 
> 
>  
>
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