Re: [mpls-linux-general] meaning of the mpls instructions

[<rau...@gm...>]

It's ok! I know what MPLS is and how it work. I understand the
commands nhlfe, ilm, labelspace, but I don't understand command xc.

I understand the commands individually but I don't know make a network
with this software (with mpls command):

192.168.2.1----------LER A----------LSR------------LER B----------192.168.4=
.4

In http://mpls-linux.sourceforge.net/ there is an example where
explain how configure ingress LER (LER A) and egress LER (LER B). And
the LSR?

Configuration LER A:
#mpls nhlfe add key 0 instructions push gen 200 nexthop eth0 ipv4 LSR
Key: 0x00000002
#ip route add 192.168.4.4/32 via LSR spec_nh 0x8847 0x2

Configuration LER B:
#mpls labelspace add dev eth0 labelspace 0
#mpls ilm add label gen 200 labelspace 0

It is ok? I are not sure! because the label 200 will be changed in the
LSR, will not? And how I configure the LSR?

Can you help me?

Ra=FAl Gil.

On 6/16/05, James R. Leu <jl...@mi...> wrote:
> Hi there,
>=20
> It seems you're new to MPLS.  If this is the can I suggest reading some
> books of web-page that explain what MPLS is and how it work.
>=20
> Here are a few places to start, ofcourse a google search for MPLS will
> result in a lot more information to read.
>=20
> http://mplsrc.com/
> http://students.ee.sun.ac.za/~hvtonder/arc_mplsOverview.htm
> http://www.ibr.cs.tu-bs.de/lehre/ws0405/ks/pdf-2x1/09-l3ip_e-mpls.pdf
>=20
>=20
>=20
> On Tue, Jun 14, 2005 at 12:44:27PM +0200, Ra?l Gil wrote:
> > Hello! I am Ra?l Gil
> >
> > I have found in mailing list the mpls utility usage
> >
> > "mpls" utility usage
> >  --------------------
> >
> >      mpls nhlfe add key 0 instructions push gen 16 nexthop wlan0 ipv4
> > 192.168.2.1
> >      (output: "Key: 0x2")
> >      mpls ilm add label gen 16 labelspace 0
> >      mpls labelspace add dev eth0 labelspace 0
> >      mpls xc add ilm_label gen 16 ilm_labelspace 0 nhlfe_key 0x2
> >      mpls tunnel add dev mpls0 key 0x2
> >      ip route add 10.0.0.0/24 via 192.168.2.1 spec_nh 0x8847 0x2
> >
> > but I do not know that it makes each instruction (nhlfe, ilm,
> > labelspace, xc), I do not know that it means.
> >
> > For example, if I execute 'mpls ilm add label gen 16 labelspace 0',
> > what I am doing?
> >
> > Can you helpme?, please!
> >
> > Ra?l Gil.
> >
> >
> > -------------------------------------------------------
> > This SF.Net email is sponsored by: NEC IT Guy Games.  How far can you s=
hotput
> > a projector? How fast can you ride your desk chair down the office luge=
 track?
> > If you want to score the big prize, get to know the little guy.
> > Play to win an NEC 61" plasma display: http://www.necitguy.com/?r
> > _______________________________________________
> > mpls-linux-general mailing list
> > mpl...@li...
> > https://lists.sourceforge.net/lists/listinfo/mpls-linux-general
>=20
> --
> James R. Leu
> jl...@mi...
>=20
>=20
>