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MPLS concepts - basic from noob (is mpls really transparent?)

Posted on 2014-11-01
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Last Modified: 2014-11-04
I have attached a sample canned diagram, mainly because I have no diagramming tools at my present location.

Phase one, we are considering using MPLS with no vpn for two of our sites:  CE2 and CE1  (see diagram).

I am not exactly sure how to describe what we need but here goes....

We would like the MPLS circuit to be completely transparent to the existing networks/vlans at both locations.  For example, a printer on VLAN1050 (at both locations) may be used for printing by personnel at either location.  Another way to state this desire, the MPLS connection is so transparent that a new employee at location CE1 could add and print to a printer at location CE2 as if the printer was down the hall from the new employee at location CE1.

Another goal would be to set up location CE2 (in construction phase) with the exact same VLANS and subnetting.  Location CE2 employee #777 could travel to location CE1 connect the to an office data jack with their CE2 office laptop and print to her preset configured printers in CE2 without any further configuration as if this person never left the CE2 location.

All personnel would "see" all authorized shared files and in all locations  (more than two locations as we grow MPLS).

Note: All customer site MPLS equipment will be managed by the ISP and not configurable by the customer.

Thanks in advance.

What would we have to do to make these scenarios work as described?
dts3909-internet-access-mpls.gif
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Question by:dts3909
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Fred Marshall earned 500 total points
ID: 40417341
You say: All customer site MPLS equipment will be managed by the ISP and not configurable by the customer.

I dont' know what "equipment" means in your case and that's really important to the answer.

In our case, we have MPLS terminations which pretty much present us with what looks like a switch port.
So, if that's what you want, nothing but a switch between sites then that might be fine.

In our case, we terminate each MPLS port with a router so that we have a subnet running across the MPLS and different (unchanged yet each different) subnets at each site.  Then we can control the routing between sites pretty well and can implement VPN connections over the MPLS, or not, at our choice.

Then things to consider are whether you will have name service across all sites or only site-specific.  We have site-specific and use static IP addresses to reach remote machines, printers, etc.  This is a small organization so it works fine that way.  But if you are using DHCP on critical machines and have other reasons then you may want to have DHCP and global name service.
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by:dts3909
ID: 40417718
from fmarshall: "You say: All customer site MPLS equipment will be managed by the ISP and not configurable by the customer.

I dont' know what "equipment" means in your case and that's really important to the answer.

In our case, we have MPLS terminations which pretty much present us with what looks like a switch port."

In our case, I believe the "equipment," the CE 1&2 devices ( I believe the CE devices should be referred to as premise equipment), will be two vendor managed Adtran-NetVanta-4430.  What are the disadvantages (and advantages) if the customer (us) devices are layer-3 switches attached in both locations to the NetVanta 4430 ?  Can I instruct our ISP how we want the MPLS to "behave" or does it depend on the ISP?

At this point, I believe I want identical vlans and subnets in both (all) locations.

Thank you for your response!
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by:dts3909
ID: 40422436
Never got back with the follow-up answer.
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