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List:       cisco-nsp
Subject:    Re: [nsp] A newbie question about MPLS
From:       Eric Osborne <eosborne () cisco ! com>
Date:       2001-11-30 18:49:19
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On Fri, Nov 30, 2001 at 06:35:34PM +0000, Giles Heron wrote:
> Eduardo Pannunzio wrote:
> > 
> > Hi all,
> > 
> > I'm trying to make a MPLS lab experience with 2 routers PEs (7513)and 4 CEs \
> > (2514) but I believe is not possible to simulate a MPLS-VPN behavior without \
> > others routers like P (providers)between the PEs because a Penultime-Hop-popping \
> > . Am I correct?
> 
> no - it is perfectly possible to have an MPLS VPN with no P devices
> (i.e. the PE routers are adjacent.)
> 

Agreed.

> > Which is the IOS command that could change the rule (if exist)?
> 
> I'm not sure you can control this in IOS?
> 

You can make RSVP or LDP hand out explicit null rather than implicit,
but there's functionally no difference.




eric

> but in any case it doesn't really matter.  MPLS VPN will still work, but
> the routers will never actually impose a tunnel label.
> 
> Giles
> 
> > Thanks in advanced
> > Eduardo Pannunzio
> > --
> > 
> > Eduardo Pannunzio
> > CCNA R&S / WS
> > 
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> 
> -- 
> =================================================================
> Giles Heron    Principal Network Architect    PacketExchange Ltd.
> ph: +44 7880 506185              "if you build it they will yawn"
> =================================================================


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