The MPLS WG Archive

[Alia Atlas <aatlas@avici.com>]

At 09:29 AM 1/24/02 -0500, Thomas D. Nadeau wrote:
>
>
>>Hello Tom et all,
>>
>>I have a question on the mplsInterfaceConfTable in the mpls lsr mib. 
>>IAssume that we consider the following:
>>* Per interface label space used for RSVP signalled LSPs and static LSPs.
>>* Global label space used for LDP signalled LSPs.
>
>         First, how can you use two different label spaces to advertise over
>the same interface?  I have never heard of this behavior before. One
>assigns a per-interface label range that is unique for that interface
>only, no?

Having LDP use global labels while RSVP-TE LSPs use per interface labels is
reasonable; certainly, I've heard of it before.  One can partition the
label range given out, so that one range is for the global labels, while
the other is for per-interface.

Alia

>>Which value should we then give to the mplsInterfaceLabelMinIn:
>>* The min label value of the per interface label space (that is, the min 
>>label value from the RSVP signalled LSPs and the static LSPs)?
>>* The min label value of the RSVP signalled LSPs.
>>* The min label value of all LSPs on the interface (=min of all LDP 
>>signalled, RSVP signalled and static LSPs).
>>
>>I would appreciate any help you can give me.
>>
>>Kind regards,
>>
>>         Francis.
>>
>>--------------------------------
>>
>>mplsInterfaceLabelMinIn OBJECT-TYPE
>>    SYNTAX        MplsLabel
>>    MAX-ACCESS    read-only
>>    STATUS        current
>>    DESCRIPTION
>>        "This is the minimum value of an MPLS label that this
>>         LSR is willing to receive on this interface."
>>    ::= { mplsInterfaceConfEntry 2 }
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