The DWDM Metro Market grew 16 percent sequentially in 1Q01, posting revenues of $183 million according to Dell'Oro Group. According to Dell'Oro's new report, "DWDM-Long Haul, and DWDM-Metro," this market has expanded each quarter over the past two years and Dell'Oro Group is forecasting 141 percent annual growth for 2001.

Market Leaders (based on revenue) -- DWDM Metro

Quarterly Total Market 1Q01 Growth: ($M) $183

MFG Revenue: +16%

Rank/Vendor/Growth

(1) Nortel: +2%

(2) ONI: +50%

(3) Ciena: -3%

Dell'Oro Group's DWDM Report "DWDM-Long Haul, and DWDM-Metro" focuses on detailed quarterly analysis of market size, market share, port/unit shipments and average selling prices as it pertains to markets and vendors.

About Dell'Oro Group:

Dell'Oro Group is a market research firm that specializes in providing and timely data on the networking industry. Dell'Oro Group's DWDM Report. For more information, visit www.delloro.com.