Originally part of Cabletron Systems, and based on an early acquisition of YAGO, it was one of the many Gigabit Ethernet startups in the mid-1990s.
It is now a part of Alcatel-Lucent and its operations are being wound down via a Chapter 11 filing by their current owners.
All the products were multilayer switches (or switch-routers) and specialized in MPLS VPNs.
Flow-based routers use the main CPU to process new flows and packets through the switch.
They ran ROS software, which had a command line interface but could also be configured via SNMP.