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MPLS Internet Breakout

Hi all,

I am working through a network topology for a new company office.

They have an MPLS network, this particular office will have a 30Mb fibre connection to said MPLS.  I have been told that there is a 15Mb "Internet Breakout" from the core that they will be using for this site.

My question is this:

If the MPLS is terminated with one router, how does this "Breakout" happen, is it a case of routing all internet based traffic down one particular VLAN?

I am trying to draw a toplogy of the new site and I'm getting stuck trying to figure out how this "Breakout" will be configured.

Sorry if I am vague, it's been a while since I have dealt with something like this.

Cheers

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This could be a centralised Internet breakout from the MPLS cloud.

Site1 -----
                     MPLS Core   ----- Internet
Site2 -----

Author

Commented:
Thanks for your reply,

That is the way I understand it.

How do you tell internet traffic from site 1 / site 2 to access the internet through the core?  
Hi,

Try a traceroute, though some service providers hide the routes inside the MPLS cloud. If they don't hide MPLS hops Cisco's traceroute will show you the MPLS labels.
Most Valuable Expert 2011
Commented:
How do you tell internet traffic from site 1 / site 2 to access the internet through the core?

Once you enter the MPLS Core is it no longer based on IP#.

 MPLS is a Layer2 Switched Network.  The ownership of a particular packet is determined by a MPLS Lable attached to the packet that identifies the "site" the packet is associated with.   It is somewhat similar in theory to the Frame Tagging on a VLAN that identifies the particular "VLAN" that owns the packet.

Author

Commented:
I did not know that... answers a lot of questions, thanks.

K