Re: [mpls-linux-general] Label stacking example

[James R. L. <jl...@mi...>]

On Fri, Oct 22, 2004 at 08:38:38AM +0200, Birger T?dtmann wrote:
> Am Mittwoch, den 20.10.2004, 08:26 -0500 schrieb James R. Leu:
> [...]
> > R2
> > --
> > mplsadm2 -A -O 0 -o push:gen:1160:set:eth1:10.0.2.6
> > (key 0x2)
> > mplsadm2 -A -O 0 -o push:gen:16:fwd:0x2
> > (key 0x3)
> 
> This command above leads always to the error message "can't parse label"
> on our systems.  Any idea what went wrong here?  We tried varying keys
> and labels, to no avail.

Argh.  Sorry I forgot a label type:

mplsadm2 -A -O 0 -o push:gen:16:fwd:key:0x2
                                    ^^^

> As a hack, we are using push:push to demonstrate label stacking, but
> that's of course not the elegant way to do it as the LSR "swaps" the
> incoming label which is not the common behaviour for tunnels....

I was going to mention that as an option, but you are correct that doing
it via a fwd is a more elegant technique.

> -- 
> Birger T?dtmann
>  Technik der Rechnernetze, Institut f?r Experimentelle Mathematik und Institut 
>  f?r Informatik und Wirtschaftsinformatik, Universit?t Duisburg-Essen, Campus Essen
>  email:bto...@ex... skype:birger.toedtmann pgp:0x6FB166C9
> 
> 
> 
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-- 
James R. Leu
jl...@mi...