The MPLS WG Archive

["Fang Hao" <fangh@research.bell-labs.com>]

Adrian,

Thanks for your reply. But I am still missing something -
the tunnel creation part is fine, but when I need to
access information about L2 (the LSP tunnel), I have a problem.
What I would need is: given LSP L1 (i.e., knowing its
mplsTunnelIndex), I need to find out which tunnel it is
going through, how much bandwidth is left on this tunnel L2,
what is the ingress/egress LSR id, etc.  For those info
I would probably need the mplsTunnelIndex for L2.

If I am not misunderstanding the MIBs, this mplsTunnelIndex
(of L2) does not appear in either interface table or
out segment table. - any comments?

Thanks,
Fang

-----Original Message-----
From: Adrian Farrel [mailto:afarrel@movaz.com]
Sent: Friday, July 19, 2002 2:22 PM
To: Fang Hao
Subject: Re: Question on MIB info for LSP tunneling


Fang,

A common approach top this is to install the tunnel as an interface so it
shows
in the interfaces MIB.  The interface would also show in the TE MIB for the
tunnel.

The tunneled LSP can then be routed down the tunnel (i.e. out of the virtual
interface).  This would show up in the LSR MIB out segment.

Cheers,
Adrian
----- Original Message -----
From: "Fang Hao" <fangh@research.bell-labs.com>
To: <mpls@UU.NET>
Sent: Friday, July 19, 2002 12:07 PM
Subject: Question on MIB info for LSP tunneling


> Hi-
>
> My question is the following:
> Suppose LSP L1 uses LSP L2 as a tunnel for some intermediate
> hop between LSR Ru and Rd, is the correlation between L1 and
> L2 stored somewhere in one of MIBs (MPLS-TE, MPLS-LSR, etc.)
> of Ru? In other words, if I know the mplsTunnelIndex of L1, can I
> somehow get to know the mplsTunnelIndex of L2?
>
> Could someone shed some light on this?  Thanks.
>
> Fang