Cisco Catalyst 3900 Series Switches

Catalyst 3900 and 3920 Token Ring Switch End of Sale

Table Of Contents

Product Bulletin 1644




For More Information

Product Bulletin 1644

Catalyst 3900 and 3920 Token Ring Switch End of Sale Announcement


Cisco Systems announces the End of Sale and End of Life for the Catalyst® 3900 and 3920 Token Ring switches.


In 1997, Cisco introduced the second-generation family of Token Ring switchesæthe Catalyst 3900 stackable Token Ring switch, followed a few months later by the Catalyst 3920 stackable Token Ring switch. These products quickly gained a high level of customer acceptance and have subsequently been installed in thousands of mission-critical Token Ring networks worldwide. However, since that time the number of customers continuing to use Token Ring has decreased dramatically, with most customers converting to networks based on Ethernet. The demand for Token Ring products is now at a very low level. Vendors that produce chips used for the production of these products are discontinuing those chips, making the continuing production impossible without expensive redesign. Considering the low level of demand, it is not practical for Cisco to undertake this redesign. Cisco is, therefore, announcing the End of Sale of the products listed in Table 1, effective February 12, 2003. There are no replacement products. Cisco is making this announcement a full year prior to actual End of Sale to give customers who have not yet completed migration to Ethernet an opportunity to adjust their plans as necessary. Table 2 describes the dates associated with this announcement.

Table 1  End of Sale Products 



Catalyst 3900 20-port switch


2-port ISL uplink, UTP


2-port ISL uplink, MMF, ST


4-port Token Ring copper module


4-port Token Ring fiber module


Stack module


ATM uplink, MMF, SC


Catalyst 3920 24-port switch


RMON license


Rack mount brackets, Catalyst 3900


Rack mount brackets, Catalyst 3920


Slot cover


Slot cover

Table 2  Milestones for the Catalyst 3900 Series Products

Effective Date

End of Sale Announcement

February 12, 2002

End of Sale

February 12, 2003

Discontinue Contract Renewal

March 1, 2006

End of Support/End of Life

March 1, 2007


End of sale refers to the time when certain products are no longer available for new purchases. It does not apply to the service and support programs for those products. Cisco will continue to support these products after End of Sale through the SMARTnet™ and Comprehensive Maintenance programs. Customers with either of these service contracts are entitled to free software updates, 24-hour phone support through the Cisco Technical Assistance Center (TAC), and advance replaced hardware for repairs. Comprehensive Maintenance customers also receive onsite service. Customers who do not have a maintenance contract can purchase software updates and hardware repair services from Cisco to meet specific requirements rather than full-service coverage. Cisco is committed to providing software support for three years and providing hardware support for a period of five years after the End of Sale date.

The following definitions apply to the milestones listed in Table 2:

End of SaleæAfter this date, orders for the Catalyst 3900 and 3920 products will no longer be accepted.

Discontinue Contract RenewalæAfter this date, no maintenance contracts will be renewed for Catalyst 3900 and 3920 products.

End of Support/End of LifeæAfter this date, the Catalyst 3900 and 3920 products will no longer be supported by Customer Support Engineering or TAC.

For More Information

For additional information on the Catalyst 3900 Token Ring Switch Series, see For any questions or comments regarding this document, please contact Frank Whitten, Product Manager, at