The document provides a technical overview of the Ericsson Smart Packet (SP) 415/420 router platform. It discusses:
1) The SP 415/420 combines routing, Ethernet aggregation, and advanced services in a single platform for carrier-class reliability, scalability, and performance.
2) It supports Layer 2 VPNs, Layer 3 VPNs, routing, and integration with other Ericsson solutions for IP radio access networks and mobile backhaul.
3) Key features include synchronization, Layer 2/3 routing, QoS, monitoring tools, and various interface, module, and cable specifications.
4) The software architecture uses multiple logical "contexts" that operate as separate routing domains within a