VRF/MPLS on Linux

[nanog at rhemasound.org (Brian Raaen)]

Jared,
    Thank you for your reply.  The one issue I have is how can I label traffic to match a given table (i.e. ping VRF or snmp VRF).  I don't see any way this can be done with normal BSD sockets, finding a way to get my application to 'color' the traffic has been a little evasive.  The developers I am working with are using Mule for their data collection.  I would really prefer to add an MPLS tag to mark the traffic, but I will investigate what I can do using the Linux routing features and 802.1q tags.

---
Brian Raaen
Network Architect
braaen at zcorum.com

On Tue, Aug 23, 2011 at 09:50:30AM -0400, Jared Mauch wrote:
> 
> On Aug 23, 2011, at 9:45 AM, nanog at rhemasound.org wrote:
> 
> > While I have found some information on a project called linux-mpls I am having a hard time finding any solid VRF framework for Linux.  I have a monitoring system that needs check devices that sit in overlapping private ip space, and I was wondering if there is anyway I could use some kind or VRF type solution that would allow me to label the "site" the traffic is intended for.  The upstream router supports VRF/MPLS, but I need to know how I can get the server to label the traffic.  I would appreciate any input.
> 
> In linux, you can manage the different routing tables.
> 
> You can do this with the iptables + iproute2 series of commands.  The tables 254/255 are the main and local tables.
> 
> You shouldn't have too much trouble finding information via google on how to manage your needs.
> 
> - Jared