The Enterprise Unified Collaboration and Communication (EUCC) services offered by MN.IT are delivered in two differeent ways. EUCC services include electronic mail, desktop video, instant messaging, and Sharepoint.
If the user is accessing the EUCC services from a point on MNET, the traffic is carried on the MNET backbone, then over dedicated links to the EUCC servers. The paths are designed to be high-performance and low-latency and the traffic is fully secured throughout the entire length. MN.IT's contract with Microsoft specifies performance targets that must be met when using this path.
If the user is accessing the EUCC services from any other place on the Internet, traffic is carried over the Internet directly to the EUCC servers. While the EUCC servers are connected to the Internet using high-capacity links, the user's traffic will be competing with all other EUCC customers and, of course, other Internet traffic along the way. Because the Internet path is outside of MN.IT and Microsoft's control, there are no performance targets when this path is used: it is "best-effort."
The Domain Name System (DNS) is used to select which path is used.
If the user is accessing the EUCC services from a point on MNET, the DNS servers will normally[*] return "on-network" adddresses for the EUCC servers. These addresses are mostly in the 10.77.0.0/16 range.
If the user is accessing the EUCC services from any other place on the Internet, the DNS servers will return "off-network" adddresses for the EUCC servers. These addresses are in Microsoft's address range.
[*] If the user is on MNET and is not receiving these addresses, please contact Service.Desk@state.mn.us. MN.IT staff can work with you to identify and resolve any issues with the DNS service.
MNET has managed "net-10" space for many years. The specifics are covered in the Private Address Space page. If the user is accessing EUCC, you will need to follow that policy. Specifically, this means:
For EUCC users, these points can be stretched a bit. Things should work fine so long as you:
Some places have added host entries for the EUCC hosts to their internal host tables and used the Internet-facing address of the EUCC server. We do not advise that solution for these reasons: