Core Network

The University of Michigan campus Core Network is architected for speed, reliability, capacity, and redundancy to handle both the daily traffic that faculty, staff, and students require and the high speed and bandwidth that campus researchers may need to connect on campus and across the globe.

Note: For more complete information and a visual representation of the these core network components, see the Network Diagram & Description.

Components of the Core Network include:

  • Distribution Layer Switches (DLS)
    Campus buildings have one or two DLS connections to the Core Network routers in two locations.
  • Off Campus to Core Connections
    Off campus buildings are connected to the Core Network in various ways, depending on their location and distance from campus.
  • Data Center to Core Connections
    Five campus data centers each have multiple 10 Gbps DLS connections to the Core Network routers.
  • Network Security
    A Intrusion Prevention Systems and Virtual Firewalls protect the Core Network and other campus networks and traffic.
  • Core Network to Backbone Interconnect Network Connections
    Four Core Network routers connect the backbone network to the University of Michigan Backbone Interconnect Network (UMBIN) with multiple 100 Gbps connections for adequate bandwidth and redundancy. 
  • UMBIN
    The UMBIN connects campus to the Internet, state, and national education and research networks, as well as the University of Michigan Health System backbone network with multiple 10 Gbps redundant connectivity. External connections include:

Resources which may be helpful to unit leaders as they request enhancements or budget for building construction or renovation include:

The Core Network is managed by the ITS Infrastructure UMNet Administration Team. This group supports unit network administrators and coordinates the network infrastructure, and network numbers.