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Short Take: RedBack files for IPO

RedBack Networks, a networking company, has filed with the SEC for a initial public offering. The company expects to raise more than $37 million, based on the filing fee. RedBack will trade on the Nasdaq National Market under the ticker symbol "RBAK." Morgan Stanley Dean Witter is the lead manager and BancBoston Robertson Stephens and Dain Rauscher Wessels also will underwrite the offering.