Navy buys 3Com switches to build IT-21 ATM backbones for East and West coasts

The Navy has ordered two networks from 3Com Corp. of Santa Clara, Calif., for its
Information Technology for the 21st Century program.

The ashore networks will create asynchronous transfer mode backbones for Navy
organizations on the East and West coasts.

The Navy’s postgraduate school in Monterey, Calif., and the Naval Depot in
Jacksonville, Fla., are each building networks using 3Com’s CoreBuilder 7000HD ATM

Through IT-21, the Navy wants to build a high-bandwidth infrastructure that will
integrate voice, data and video aboard its 300-ship fleet and at strategic land
installations. The IT-21 plans call for equipment that supports LANs with OC-12
transmission rates of 622 Mbps on backbone networks and OC-3 rates of 155-Mbps or 100-Mbps
Fast Ethernet throughput to servers, desktop PCs and peripherals.

The Navy in March certified 3Com’s CoreBuilder 2500, 3500 and 7000 ATM switches,
SuperStack II switches and ATMLink network interface card for IT-21 use. The company
shipped the equipment to the Monterey and Jacksonville locations in May.

Both networks will have OC-12 backbones with redundant ATM switches at the core and
throughout the network. OC-3 lines will deliver switched 10/100 Ethernet to desktop PCs.

The postgraduate school LAN will include 16 CoreBuilder 7000 switches and 75 SuperStack
II switches. A pair of CoreBuilder 3500 switches will provide virtual LAN capability.

The depot LAN will require eight CoreBuilder 7000 switches, each with SuperStack II
edge switches. Existing CoreBuilder 2500 switches will route between the virtual

About the Author

William Jackson is a Maryland-based freelance writer.

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