The MPLS WG Archive

[Shahram Davari <Shahram_Davari@pmc-sierra.com>]

Eric,

It is odd to do MPLS-in-GRE over IP, because in this case you are already assuming that there is IP connectivity between the PEs. So why bother to have an extra GRE header, which does nothing, just do MPLS-in-IP. In other words how can you have a GRE-IP tunnel and not
be able to have IP tunnel?


Yours,
-Shahram 

> -----Original Message-----
> From: Eric Rosen [mailto:erosen@cisco.com]
> Sent: Wednesday, August 14, 2002 12:48 PM
> To: mpls@UU.NET; Loa Andersson; George Swallow
> Subject: Encapsulating MPLS in IP or GRE
> 
> 
> In support of work going on in  PPVPN and PWE3, it is 
> desirable to have some
> standards for encapsulating MPLS packets inside IP packets.  
> The draft whose
> announcement  I attach  below is  the result  of merging  two 
>  previous (but
> expired)  documents, draft-worster-mpls-in-ip,  and 
> draft-rekhter-mpls-over-
> gre.  I would like to present this for the consideration of 
> the MPLS WG as a
> standards track document.
> 
>