Lucent Technologies ( LU ) agreed to buy some assets from Riverstone Networks for $170 million. As part of the deal, Santa Clara, Calif.-based Riverstone will file for Chapter 11 bankruptcy protection. Under section 363 of Chapter 11, solvent companies can file for protection from creditors in the name of conducting an orderly auction of their assets. Buying the assets of Riverstone, a maker of carrier-grade Ethernet routers for the telecommunications industry, will complement Lucent's broadband, data and optical networking solutions, Lucent said. The Murray Hill, N.J., gearmaker currently resells Riverstone's systems to service providers worldwide to support consumer and business multimedia network services.