Brocade, a major supplier of fibre channel technology for enterprise data centers, announced it will buy Foundry Networks, a major supplier of Ethernet technology for about $3 billion. The combination issues a competitive challenge to the likes of Cisco Systems and Juniper Networks. The deal comes as the market for network operator and enterprise data centers is undergoing changes, and technologies are converging. Data centers that have been fibre channel-base may be moving toward a fiber channel over Ethernet standard. Everything keeps coming up Ethernet.