Juniper Networks transforms the business of networking. A leading global provider of networking and security solutions, Juniper Networks maintains an intense focus on customers who derive strategic value from their networks. Its customers include major network operators, enterprises, government agencies, and research and educational institutions globally. Juniper Networks delivers a portfolio of networking solutions that support the complex scale, security and performance of the world's most demanding mission-critical networks.This Routing Engine board spare (600 MHz Pentium III, 2048 MB DRAM, 256 MB flash drive, 30 GB hard disk drive, JUNOS worldwide) requires JUNOS 5.4 or later.