Re: [mpls-linux-general] About labels and interfaces

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

On Mon, Mar 07, 2005 at 07:56:46AM -0300, jrussi wrote:
> Thank you.
>=20
> I found the following at you developer's guide:
>=20
> "The proposed approach in the current MPLS for Linux
> implementation is to add a label space to a given interface ..."
>=20
> For outgoing segments you do it too. The "key" structure is
> a labelspace for outgoing segments. You use one labespace
> per outgoing segment.

No.  labelspace is only need on the rx side, ie ILM.  The 'key' is the
unique key needed to reference that NHLFE from userspace.  It is specified
as '0' upon creation which indicates that you are creating a new NHLFE.  The
result of the creatation tells you what key was allocated for the new NHLFE.
Read RFC3031 and RFC3813 for a better understanding of in-segment and
out-segment indexing and relationship to labelspace.

> Thank you again,
>=20
> Josdeyvi
>=20
>=20
> On Sat, Mar 05, 2005 at 06:27:36PM -0300, jrussi wrote:
> > How can I verify wich label (and labelspace) is assigned to
> > each interface?
> >=3D20
> > I see that several interfaces can use the same labelspace,
> > right? So the command mpls ilm show will not give me a
> > per-interface information. Is that correct? Any solution?
>=20
> It's a two step process, look at:
> mpls labelspace show
>=20
> Find the labelspace of the interface your interested in:
> Then look for that labelspace in:
> mpls ilm show
>=20
> >=3D20
> > Josdeyvi
> > =3D20
> =20
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>=20
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--=20
James R. Leu
jl...@mi...