The MPLS-OPS Archive

["M. elk" <elkou141061@hotmail.com>]

Garry

Theoretically :
1- In General , MPLS over IP or GRE
Have a look to RFC 4023 " Encapsulating MPLS in IP or Generic Routing
Encapsulation (GRE)" .

Quote
Abstract

   Various applications of MPLS make use of label stacks with multiple
   entries.  In some cases, it is possible to replace the top label of
   the stack with an IP-based encapsulation, thereby enabling the
   application to run over networks that do not have MPLS enabled in
   their core routers.  This document specifies two IP-based
   encapsulations: MPLS-in-IP and MPLS-in-GRE (Generic Routing
   Encapsulation).  Each of these is applicable in some circumstances.
Unquote


2- Specific For L3VPN

Use of PE-PE GRE or IP in BGP/MPLS IP VPNs


For Cisco , have no idea if they support the above but guess they do .

Brgds














----- Original Message ----- 
From: "Garry Glendown" <garry@regio.net>
To: <mpls-ops@mplsrc.com>
Sent: 19 April, 2005 10:10 AM
Subject: [MPLS-OPS]: Tunneling MPLS over non-MPLS network


> Hi,
>
> I was wondering if there is a way to tunnel MPLS traffic over a non-MPLS
> link? Hardware is Cisco routers, and link would have to account for an
> MTU for 1500 or possibly less ...
>
> Any idea?
>
> Tnx, -gg
>
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