Tuesday October 14 2008
Information Technology Central Services at the University of Michigan
Search ITCom

Off-Campus Backbone Connections

This service provides Units and Departments at the University of Michigan with a connection to one of three central networks, which interconnect them to the Internet, other computing services, and other Departments and Units on campus. There are various types and speeds of connections, from which a department may select.

Type of Connection Speed Interface to LAN Limitations
ISDN 128 Kbps AUI, RJ-45 Telephone Companies ISDN Service areas
HSDL LADS T1 1.5 Mbps AUI, RJ-45 8Kft from Ameritech's Central Office
HDSL Partial T1 768 Kbps AUI, RJ-45 12Kft from Ameritech's Central Office
HDSL Partial T1 384 Kbps AUI, RJ-45 14Kft from Ameritech's Central Office
T1 service in Ann Arbor 1.5 Mbps AUI, RJ-45 Ann Arbor LATA area
Dual T1 service in Ann Arbor 3.0 Mbps AUI, RJ-45 Ann Arbor LATA area
T1 service in Dearborn 1.5 Mbps AUI, RJ-45 Dearborn LATA area
T1 service in Flint 1.5 Mbps AUI, RJ-45 Flint LATA area
DS3 service in Ann Arbor 45 Mbps AUI, RJ-45 Ann Arbor LATA area
X.25 Service 56Kbps to 1.5 Mbps V.35

Selecting a Connection

The type of connection you may be able to use will depend on your location, type of Telephone Company facilities to your location, and the distance of your location from the Ann Arbor Campus.

Supported Protocols

There are four supported protocols that are routed over the Backbone which you may use to collaborate with others, these protocols are Internet Protocol (IP), AppleTalk, Novell's Internet Packet Exchange (IPX), and Banyan VINES IP.

Orders, Rates, and Installation

To request a new Backbone connection, contact the Project Manager for your Department or Unit.

Backbone and Circuit Rates
UMnet Backbone Pricing Model Detail

Additional Product Information

Off-Campus Backbone Connection SLA
Off-Campus Backbone Checklist

Supporting Resources

Who is my Network Administrator?
Status of the Backbone Network
Map of UMBIN
Map of On-Campus Connections
Map of Off-Campus Connections
Backbone Router Statistics

For More Information

Roy Hockett
Backbone Network Product Leader
itcom.backbone@umich.edu